mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-11-25 07:28:20 +00:00
Code Issues Releases Activity
6a182658a5
emacs/etc/PROBLEMS

4388 lines
180 KiB
Plaintext
Raw Normal View History

Add header line.
2008-02-29 23:44:30 +00:00
Known Problems with GNU Emacs
; Add 2024 to copyright years
2024-01-02 01:47:10 +00:00
Copyright (C) 1987-1989, 1993-1999, 2001-2024 Free Software Foundation,
Update copyright year to 2016 Run admin/update-copyright.
2016-01-01 09:16:19 +00:00
Inc.
Switch to standard GPL text for license.
2007-02-11 01:18:25 +00:00
See the end of the file for license conditions.
#
1999-10-03 12:39:42 +00:00
This file describes various problems that have been encountered
Fix initial comment on outline mode.
2009-01-27 03:48:02 +00:00
in compiling, installing and running GNU Emacs. Try doing C-c C-t
and browsing through the outline headers. (See C-h m for help on
* etc/PROBLEMS: Remove old information no longer of relevance.
2010-05-27 05:51:43 +00:00
Outline mode.) Information about systems that are no longer supported,
and old Emacs releases, has been removed. Consult older versions of
this file if you are interested in that information.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove some old stuff; other small edits
2014-01-07 02:06:00 +00:00
* Mule-UCS doesn't work in Emacs 23 onwards
*** empty log message ***
2003-09-11 13:54:47 +00:00
It's completely redundant now, as far as we know.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Emacs startup failures
Document the workaround for the Mac OS X port not picking up the environment variables from the dotfiles.
2004-05-30 00:35:44 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs fails to start, complaining about missing fonts.
Document the workaround for the Mac OS X port not picking up the environment variables from the dotfiles.
2004-05-30 00:35:44 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A typical error message might be something like
Document the workaround for the Mac OS X port not picking up the environment variables from the dotfiles.
2004-05-30 00:35:44 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
No fonts match ‘-*-fixed-medium-r-*--6-*-*-*-*-*-iso8859-1’
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This happens because some X resource specifies a bad font family for
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
Emacs to use. The possible places where this specification might be are:
Sync to HEAD
2004-04-16 12:51:06 +00:00
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
- in the X server resources database, often initialized from
~/.Xresources (use $ xrdb -query to find out the current state)
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
- in your ~/.Xdefaults file
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
- client-side X resource file, such as ~/Emacs or
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
/usr/share/X11/app-defaults/Emacs
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
One of these files might have bad or malformed specification of a
fontset that Emacs should use. To fix the problem, you need to find
the problematic line(s) and correct them.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
After correcting ~/.Xresources, the new data has to be merged into the
X server resources database. Depending on the circumstances, the
following command may do the trick. See xrdb(1) for more information.
$ xrdb -merge ~/.Xresources
Mention font-backend related crashes in PROBLEMS * etc/PROBLEMS: Mention the crash in the Cairo build when .emacs.desktop messes with font-backend. (Bug#36835)
2019-08-02 09:24:53 +00:00
** Emacs compiled with Cairo crashes when restoring session from desktop file.
This can happen if the '.emacs.desktop' file contains setting for
'font-backend' frame parameter. A workaround is to delete the
offending '.emacs.desktop' file, or edit it to remove the setting of
'font-backend'.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs aborts while starting up, only when run without X.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This problem often results from compiling Emacs with GCC when GCC was
installed incorrectly. The usual error in installing GCC is to
specify --includedir=/usr/include. Installation of GCC makes
corrected copies of the system header files. GCC is supposed to use
the corrected copies in preference to the original system headers.
Specifying --includedir=/usr/include causes the original system header
files to be used. On some systems, the definition of ioctl in the
original system header files is invalid for ANSI C and causes Emacs
not to work.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The fix is to reinstall GCC, and this time do not specify --includedir
when you configure it. Then recompile Emacs. Specifying --includedir
is appropriate only in very special cases and it should *never* be the
same directory where system header files are kept.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs does not start, complaining that it cannot open termcap database file.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If your system uses Terminfo rather than termcap (most modern
systems do), this could happen if the proper version of
ncurses is not visible to the Emacs configure script (i.e. it
cannot be found along the usual path the linker looks for
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
libraries). It can happen because your version of ncurses is
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
obsolete, or is available only in form of binaries.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to install an up-to-date version of ncurses in
the developer's form (header files, static libraries and
symbolic links); in some GNU/Linux distributions (e.g. Debian)
it constitutes a separate package.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs 20 and later fails to load Lisp files at startup.
Truncated process output with pty's on Mac OS X.
2003-07-22 17:51:57 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The typical error message might be like this:
Truncated process output with pty's on Mac OS X.
2003-07-22 17:51:57 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
"Cannot open load file: fontset"
Adding comment about Mac OS X binary incompatibility between 10.2.1 and 10.2.2
2002-11-14 06:30:15 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This could happen if you compress the file lisp/subdirs.el. That file
tells Emacs what are the directories where it should look for Lisp
files. Emacs cannot work with subdirs.el compressed, since the
Auto-compress mode it needs for this will not be loaded until later,
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
when your .emacs file is processed. (The package 'fontset.el' is
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
required to set up fonts used to display text on window systems, and
it's loaded very early in the startup procedure.)
Mention problem with Emacs executable crashing after system updates solved.
2002-11-25 16:24:23 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Similarly, any other .el file for which there's no corresponding .elc
file could fail to load if it is compressed.
*** empty log message ***
2002-07-24 23:01:32 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
The solution is to uncompress all .el files that don't have a .elc file.
Sync to HEAD
2004-04-16 12:51:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another possible reason for such failures is stale *.elc files
* etc/PROBLEMS: Remove some more old information.
2010-05-27 06:13:23 +00:00
lurking somewhere on your load-path -- see the next section.
XFree86 4 iso10646-1 fonts.
2002-10-24 22:13:59 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs prints an error at startup after upgrading from an earlier version.
XFree86 4 iso10646-1 fonts.
2002-10-24 22:13:59 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
An example of such an error is:
XFree86 4 iso10646-1 fonts.
2002-10-24 22:13:59 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
x-complement-fontset-spec: "Wrong type argument: stringp, nil"
Correct Unicode stuff.
2003-05-29 18:15:21 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can be another symptom of stale *.elc files in your load-path.
The following command will print any duplicate Lisp files that are
present in load-path:
Correct Unicode stuff.
2003-05-29 18:15:21 +00:00
-batch implies -q. * etc/PROBLEMS: -batch implies -q. * msdos/sedleim.inp (RUN-EMACS): -batch imples --no-init-file.
2011-01-08 02:49:27 +00:00
emacs -batch -f list-load-path-shadows
Correct Unicode stuff.
2003-05-29 18:15:21 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If this command prints any file names, some of these files are stale,
and should be deleted or their directories removed from your
load-path.
Mention Unicode limitations.
2003-04-29 13:35:52 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Crash bugs
*** empty log message ***
2002-08-02 18:03:01 +00:00
Document GTK Emacs kill on display close in PROBLEMS. * src/xterm.c (x_connection_closed): Update comment.
2010-10-25 16:04:54 +00:00
** When Emacs is compiled with Gtk+, closing a display kills Emacs.
Add "Emacs compiled with Gtk+ crashes when closing a display (x-close-connection)."
2006-09-10 12:29:10 +00:00
Document GTK Emacs kill on display close in PROBLEMS. * src/xterm.c (x_connection_closed): Update comment.
2010-10-25 16:04:54 +00:00
There is a long-standing bug in GTK that prevents it from recovering
GNOME moved URLs for its active bug reports * src/emacs.c (main) [USE_GTK]: * src/gtkutil.c (xg_display_close): * src/xterm.c (x_connection_closed): Update GNOME bug report URLs.
2018-05-26 23:42:52 +00:00
from disconnects: https://gitlab.gnome.org/GNOME/gtk/issues/221
Add "Emacs compiled with Gtk+ crashes when closing a display (x-close-connection)."
2006-09-10 12:29:10 +00:00
Document GTK Emacs kill on display close in PROBLEMS. * src/xterm.c (x_connection_closed): Update comment.
2010-10-25 16:04:54 +00:00
Thus, for instance, when Emacs is run as a server on a text terminal,
and an X frame is created, and the X server for that frame crashes or
exits unexpectedly, Emacs must exit to prevent a GTK error that would
result in an endless loop.
Added some text about Gtk+ looping when X server dies.
2008-12-18 19:18:12 +00:00
Document GTK Emacs kill on display close in PROBLEMS. * src/xterm.c (x_connection_closed): Update comment.
2010-10-25 16:04:54 +00:00
If you need Emacs to be able to recover from closing displays, compile
it with the Lucid toolkit instead of GTK.
Added some text about Gtk+ looping when X server dies.
2008-12-18 19:18:12 +00:00
* etc/PROBLEMS: New entry about GTK+ 3 crash with some X servers.
2018-08-28 20:05:04 +00:00
** Emacs compiled with GTK+ 3 crashes when run under some X servers.
This happens when the X server does not provide certain display
features that the underlying GTK+ 3 toolkit assumes. For example, this
issue has been seen with remote X servers like X2Go. The symptoms
are an Emacs crash, possibly triggered by the mouse entering the Emacs
window, or an attempt to resize the Emacs window. The crash backtrace
contains a call to XQueryPointer.
This issue was fixed in the GTK+ 3 toolkit in commit 4b1c0256 in February 2018.
If your GTK+ 3 is still affected, you can avoid the issue by recompiling
Emacs with a different X toolkit, eg --with-toolkit=gtk2.
References:
https://gitlab.gnome.org/GNOME/gtk/commit/4b1c02560f0d8097bf5a11932e52fb72f3e9e94b
https://debbugs.gnu.org/24280
https://bugs.debian.org/901038
https://bugzilla.redhat.com/1483942
https://access.redhat.com/solutions/3410101
; etc/PROBLEMS: Describe GTK-related crashes on elementary OS.
2017-05-09 16:48:18 +00:00
** Emacs compiled with GTK crashes at startup due to X protocol error.
This is known to happen on elementary OS GNU/Linux systems.
The error message is:
X protocol error: BadMatch (invalid parameter attributes) on protocol request 140
When compiled with GTK, Emacs cannot recover from X disconnects.
GNOME moved URLs for its active bug reports * src/emacs.c (main) [USE_GTK]: * src/gtkutil.c (xg_display_close): * src/xterm.c (x_connection_closed): Update GNOME bug report URLs.
2018-05-26 23:42:52 +00:00
This is a GTK bug: https://gitlab.gnome.org/GNOME/gtk/issues/221
; etc/PROBLEMS: Describe GTK-related crashes on elementary OS.
2017-05-09 16:48:18 +00:00
For details, see etc/PROBLEMS.
Fatal error 6: Aborted
followed by a C backtrace. (Sometimes the offending protocol request
number is 139.)
The relevant bug report is here:
https://bugs.launchpad.net/elementaryos/+bug/1355274
A workaround is to set XLIB_SKIP_ARGB_VISUALS=1 in the environment
before starting Emacs, or run Emacs as root.
; * etc/PROBLEMS: Describe a crash in xwidgets due to Bubblewrap.
2021-11-06 08:49:54 +00:00
** Emacs crashes with SIGTRAP when trying to start a WebKit xwidget.
This could happen if the version of WebKitGTK installed on your system
is buggy, and errors out trying to start a subprocess through
Bubblewrap sandboxing. You can avoid the crash by setting the
environment variables SNAP, SNAP_NAME and SNAP_REVISION, which will
; * etc/PROBLEMS: More specific recipe for WebKit-related crashes.
2021-11-07 07:34:30 +00:00
make WebKit use GLib to launch subprocesses instead. For example,
; * etc/PROBLEMS: Minor clarification of a recent entry.
2021-11-07 17:32:28 +00:00
invoke Emacs like this (where "..." stands for the other command-line
arguments you intend to pass to Emacs):
; * etc/PROBLEMS: More specific recipe for WebKit-related crashes.
2021-11-07 07:34:30 +00:00
$ SNAP=1 SNAP_NAME=1 SNAP_REVISION=1 emacs ...
; * etc/PROBLEMS: Describe a crash in xwidgets due to Bubblewrap.
2021-11-06 08:49:54 +00:00
Add a PROBLEMS note about the libotf name-clash annoyance
2012-06-28 07:47:19 +00:00
** Emacs crashes when you try to view a file with complex characters.
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
Mention crashes due to Noto Serif Kannada fonts * etc/PROBLEMS: Mention crashes due to Noto Serif Kannada fonts, and the respective workarounds. (Bug#30193)
2018-01-27 09:18:59 +00:00
One possible reason for this could be a bug in the libotf or the
libm17n-flt/m17n-db libraries Emacs uses for displaying complex
; * etc/PROBLEMS: Rearrange and update the section about crashes.
2021-11-06 08:45:58 +00:00
scripts.
The easiest and the recommended way of solving these crashes is to
build Emacs with HarfBuzz as the shaping engine library instead of
libm17n-flt. Building with HarfBuzz is the default since Emacs 27.1.
If you must use libm17n-flt, read on.
Make sure you have the latest versions of these libraries
Mention crashes due to Noto Serif Kannada fonts * etc/PROBLEMS: Mention crashes due to Noto Serif Kannada fonts, and the respective workarounds. (Bug#30193)
2018-01-27 09:18:59 +00:00
installed. If the problem still persists with the latest released
versions of these libraries, you can try building these libraries from
their CVS repository:
cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/m17n co libotf
cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/m17n co m17n-db
cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/m17n co m17n-lib
One known problem that causes such crashes is with using Noto Serif
Kannada fonts. To work around that, force Emacs not to select these
fonts, by adding the following to your ~/.emacs init file:
(push "Noto Serif Kannada" face-ignored-fonts)
You can try this interactively in a running Emacs session like this:
M-: (push "Noto Serif Kannada" face-ignored-fonts) RET
Another set of problems is caused by an incompatible libotf library.
In this case, displaying the etc/HELLO file (as shown by C-h h)
triggers the following message to be shown in the terminal from which
you launched Emacs:
symbol lookup error: /usr/bin/emacs: undefined symbol: OTF_open
Add a PROBLEMS note about the libotf name-clash annoyance
2012-06-28 07:47:19 +00:00
This problem occurs because unfortunately there are two libraries
called "libotf". One is the library for handling OpenType fonts,
Update some URLs This mostly changes http: to https: in URLs. It also updates some URLs that have moved, removes some URLs that no longer work, recommends against using procmail (procmail.org no longer works), and removes some mentions of the no-longer-existing Gmane, LPF and VTW. It doesn't update all URLs, just the ones I had time for. * GNUmakefile (help): * admin/admin.el (manual-doctype-string): * admin/charsets/Makefile.in (${charsetdir}/ALTERNATIVNYJ.map): * admin/charsets/mapconv: * lisp/net/soap-client.el (soap-create-envelope): * lisp/org/org.el (org-doi-server-url): * lisp/textmodes/bibtex.el (bibtex-generate-url-list): Prefer https: to http: un URLs.
2019-09-23 06:53:39 +00:00
https://www.nongnu.org/m17n/, which is the one that Emacs expects.
Add a PROBLEMS note about the libotf name-clash annoyance
2012-06-28 07:47:19 +00:00
The other is a library for Open Trace Format, and is used by some
versions of the MPI message passing interface for parallel
programming.
For example, on RHEL6 GNU/Linux, the OpenMPI rpm provides a version
of "libotf.so" in /usr/lib/openmpi/lib. This directory is not
normally in the ld search path, but if you want to use OpenMPI,
you must issue the command "module load openmpi". This adds
/usr/lib/openmpi/lib to LD_LIBRARY_PATH. If you then start Emacs from
the same shell, you will encounter this crash.
* etc/PROBLEMS: Remove some old stuff; other small edits
2014-01-07 02:06:00 +00:00
Ref: <URL:https://bugzilla.redhat.com/show_bug.cgi?id=844776>
Add a PROBLEMS note about the libotf name-clash annoyance
2012-06-28 07:47:19 +00:00
There is no good solution to this problem if you need to use both
OpenMPI and Emacs with libotf support. The best you can do is use a
wrapper shell script (or function) "emacs" that removes the offending
element from LD_LIBRARY_PATH before starting emacs proper.
Or you could recompile Emacs with an -Wl,-rpath option that
gives the location of the correct libotf.
; * etc/PROBLEMS: Rearrange and update the section about crashes.
2021-11-06 08:45:58 +00:00
** Emacs crashes in x-popup-dialog.
This can happen if the dialog widget cannot find the font it wants to
use. You can work around the problem by specifying another font with
an X resource--for example, 'Emacs.dialog*.font: 9x15' (or any font that
happens to exist on your X server).
** Emacs crashes when you use Bibtex mode.
This happens if your system puts a small limit on stack size. You can
prevent the problem by using a suitable shell command (often 'ulimit')
to raise the stack size limit before you run Emacs.
Patches to raise the stack size limit automatically in 'main'
(src/emacs.c) on various systems would be greatly appreciated.
** Error message 'Symbol’s value as variable is void: x', followed by
a segmentation fault and core dump.
This has been tracked to a bug in tar! People report that tar erroneously
added a line like this at the beginning of files of Lisp code:
x FILENAME, N bytes, B tape blocks
If your tar has this problem, install GNU tar--if you can manage to
untar it :-).
** Emacs crashes when running in a terminal, if compiled with GCC 4.5.0
This version of GCC is buggy: see
https://debbugs.gnu.org/6031
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43904
You can work around this error in gcc-4.5 by omitting sibling call
optimization. To do this, configure Emacs with
./configure CFLAGS="-g -O2 -fno-optimize-sibling-calls"
** Emacs compiled with GCC 4.6.1 crashes on MS-Windows when C-g is pressed
This is known to happen when Emacs is compiled with MinGW GCC 4.6.1
with the -O2 option (which is the default in the Windows build). The
reason is a bug in MinGW GCC 4.6.1; to work around, either add the
'-fno-omit-frame-pointer' switch to GCC or compile without
optimizations ('--no-opt' switch to the configure.bat script).
** Emacs can crash when displaying PNG images with transparency.
This is due to a bug introduced in ImageMagick 6.8.2-3. The bug should
be fixed in ImageMagick 6.8.3-10. See <URL:https://debbugs.gnu.org/13867>.
** Crashes when displaying GIF images in Emacs built with version
libungif-4.1.0 are resolved by using version libungif-4.1.0b1.
Configure checks for the correct version, but this problem could occur
if a binary built against a shared libungif is run on a system with an
older version.
** Emacs aborts inside the function 'tparam1'.
This can happen if Emacs was built without terminfo support, but the
terminal's capabilities use format that is only supported by terminfo.
If your system has ncurses installed, this might happen if your
version of ncurses is broken; upgrading to a newer version of ncurses
and reconfiguring and rebuilding Emacs should solve this.
All modern systems support terminfo, so even if ncurses is not the
problem, you should look for a way to configure Emacs so that it uses
terminfo when built.
** Emacs crashes when using some version of the Exceed X server.
Upgrading to a newer version of Exceed has been reported to prevent
these crashes. You should consider switching to a free X server, such
as Xming or Cygwin/X.
** Emacs crashes with SIGSEGV in XtInitializeWidgetClass.
It crashes on X, but runs fine when called with option "-nw".
This has been observed when Emacs is linked with GNU ld but without passing
the -z nocombreloc flag. Emacs normally knows to pass the -z nocombreloc
flag when needed, so if you come across a situation where the flag is
necessary but missing, please report it via M-x report-emacs-bug.
On platforms such as Solaris, you can also work around this problem by
configuring your compiler to use the native linker instead of GNU ld.
Revert the --with-install-srcdir patch Also, update description of debuginfo and sources to match Debian and Red Hat more accurately, and move this sad tale from INSTALL to etc/PROBLEMS which is a better home for it. * Makefile.in (emacs_srcdir, install-c-src): * configure.ac (emacs_srcdir, --with-install-srcdir): * src/epaths.in (PATH_EMACS_SOURCE): * src/lread.c (emacs-source-directory): Remove. All uses removed. * lisp/emacs-lisp/find-func.el (find-function-C-source): Do not worry about compressed C sources. * src/lread.c: Do not include <dosname.h>.
2020-01-28 07:04:20 +00:00
* Problems when reading or debugging Emacs C code
Because Emacs does not install a copy of its C source code, users
normally cannot easily read that code via commands like 'M-x
describe-function' (C-h f) that display the definition of a function.
However, some GNU/Linux systems provide separate packages containing
this source code which can get C-h f to work if you are willing to do
some tinkering, and some systems also provide packages containing
debug info, which when combined with the source can be used to debug
Emacs at the C level.
** Debian-based source and debuginfo
On recent Debian-based systems, you can obtain and use a source
package of Emacs as follows.
*** Add the appropriate URI to /etc/apt/sources.list.
To do this, become superuser and uncomment or add the appropriate
'deb-src' line. Details depend on the distribution.
*** Execute a command like 'apt-get source emacs'.
On older systems, append the top-level version number, e.g., 'apt-get
source emacs25'. The target directory for unpacking the source tree
is the current directory.
*** Set find-function-C-source-directory accordingly.
Once you have installed the source package, for example at
Merge from origin/emacs-27 75723ec212 (origin/emacs-27) ; * lisp/emacs-lisp/benchmark.el (benchm... 53e2a612ad ; * lib-src/make-fingerprint.c: Update commentary. 286c632772 Reformat argument commentary in etags.c 4ec740866a Make the invocation of combine-change-calls in comment-reg... 66bcec8838 * lisp/progmodes/cc-langs.el (c-<>-notable-chars-re): Fix ... 03eeab469e ; Update the expected result files in test/manual/etags. d875a22bc6 Update the various INSTALL files # Conflicts: # INSTALL
2020-11-16 17:05:31 +00:00
/home/myself/deb-src/emacs-27.1, add the following line to your
Revert the --with-install-srcdir patch Also, update description of debuginfo and sources to match Debian and Red Hat more accurately, and move this sad tale from INSTALL to etc/PROBLEMS which is a better home for it. * Makefile.in (emacs_srcdir, install-c-src): * configure.ac (emacs_srcdir, --with-install-srcdir): * src/epaths.in (PATH_EMACS_SOURCE): * src/lread.c (emacs-source-directory): Remove. All uses removed. * lisp/emacs-lisp/find-func.el (find-function-C-source): Do not worry about compressed C sources. * src/lread.c: Do not include <dosname.h>.
2020-01-28 07:04:20 +00:00
startup file:
(setq find-function-C-source-directory
Merge from origin/emacs-27 75723ec212 (origin/emacs-27) ; * lisp/emacs-lisp/benchmark.el (benchm... 53e2a612ad ; * lib-src/make-fingerprint.c: Update commentary. 286c632772 Reformat argument commentary in etags.c 4ec740866a Make the invocation of combine-change-calls in comment-reg... 66bcec8838 * lisp/progmodes/cc-langs.el (c-<>-notable-chars-re): Fix ... 03eeab469e ; Update the expected result files in test/manual/etags. d875a22bc6 Update the various INSTALL files # Conflicts: # INSTALL
2020-11-16 17:05:31 +00:00
"/home/myself/deb-src/emacs-27.1/src/")
Revert the --with-install-srcdir patch Also, update description of debuginfo and sources to match Debian and Red Hat more accurately, and move this sad tale from INSTALL to etc/PROBLEMS which is a better home for it. * Makefile.in (emacs_srcdir, install-c-src): * configure.ac (emacs_srcdir, --with-install-srcdir): * src/epaths.in (PATH_EMACS_SOURCE): * src/lread.c (emacs-source-directory): Remove. All uses removed. * lisp/emacs-lisp/find-func.el (find-function-C-source): Do not worry about compressed C sources. * src/lread.c: Do not include <dosname.h>.
2020-01-28 07:04:20 +00:00
The installation directory of the Emacs source package will contain
the exact package name and version number of Emacs that is installed
on your system. If a new Emacs package is installed, the source
package must be reinstalled as well, and the setting in your startup
file must be updated.
*** Debian-based debuginfo
You can also install a debug package of Emacs with a command like
'apt-get install emacs-dbg' (on older systems, 'apt-get install
emacs25-dbg'). You need to arrange for GDB to find where you
installed the source code, e.g., by using GDB's 'directory' command.
** Red Hat-based source and debuginfo
On recent Red Hat-based systems, you can install source and debug info
via superuser commands like the following:
# Add the *-debuginfo repositories (exact command depends on system).
dnf config-manager --set-enabled fedora-debuginfo updates-debuginfo'
# Install Emacs source and debug info.
dnf install emacs-debugsource
To get describe-function and similar commands to work, you can then
add something like the following to your startup file:
(setq find-function-C-source-directory
Merge from origin/emacs-27 75723ec212 (origin/emacs-27) ; * lisp/emacs-lisp/benchmark.el (benchm... 53e2a612ad ; * lib-src/make-fingerprint.c: Update commentary. 286c632772 Reformat argument commentary in etags.c 4ec740866a Make the invocation of combine-change-calls in comment-reg... 66bcec8838 * lisp/progmodes/cc-langs.el (c-<>-notable-chars-re): Fix ... 03eeab469e ; Update the expected result files in test/manual/etags. d875a22bc6 Update the various INSTALL files # Conflicts: # INSTALL
2020-11-16 17:05:31 +00:00
"/usr/src/debug/emacs-27.1-1.fc31.x86_64/src/")
Revert the --with-install-srcdir patch Also, update description of debuginfo and sources to match Debian and Red Hat more accurately, and move this sad tale from INSTALL to etc/PROBLEMS which is a better home for it. * Makefile.in (emacs_srcdir, install-c-src): * configure.ac (emacs_srcdir, --with-install-srcdir): * src/epaths.in (PATH_EMACS_SOURCE): * src/lread.c (emacs-source-directory): Remove. All uses removed. * lisp/emacs-lisp/find-func.el (find-function-C-source): Do not worry about compressed C sources. * src/lread.c: Do not include <dosname.h>.
2020-01-28 07:04:20 +00:00
However, the exact directory name will depend on the system, and you
will need to both upgrade source and debug info when your system
upgrades or patches Emacs, and change your startup file accordingly.
** Source and debuginfo for other systems
If your system follows neither the Debian nor the Red Hat patterns,
you can obtain the source and debuginfo by obtaining the source code
of Emacs, building Emacs with the appropriate debug flags enabled, and
running the just-built Emacs.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* General runtime problems
Document problems (with WinZip) whereby *.tit files get converted to DOS-style EOLs while unpacking Leim.
2001-01-24 08:09:48 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Lisp problems
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Changes made to .el files do not take effect.
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You may have forgotten to recompile them into .elc files.
Then the old .elc files will be loaded, and your changes
will not be seen. To fix this, do M-x byte-recompile-directory
and specify the directory that contains the Lisp files.
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
* etc/PROBLEMS: Remove some old stuff; other small edits
2014-01-07 02:06:00 +00:00
Emacs prints a warning when loading a .elc file which is older
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
than the corresponding .el file.
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Alternatively, if you set the option 'load-prefer-newer' non-nil,
* etc/PROBLEMS: Remove some old stuff; other small edits
2014-01-07 02:06:00 +00:00
Emacs will load whichever version of a file is the newest.
*** Watch out for the EMACSLOADPATH environment variable
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
EMACSLOADPATH overrides which directories the function "load" will search.
Mention the crashes on Yellow Dog GNU/Linux on MacPPC, and provide a work-around.
2001-10-17 17:47:54 +00:00
* etc/PROBLEMS: Remove some old stuff; other small edits
2014-01-07 02:06:00 +00:00
If you observe strange problems, check for this variable in your
environment.
*** empty log message ***
2001-03-14 19:52:43 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Keyboard problems
Document problems with the MS-Windows port of v21.1 and with the Cygwin port of Bash when run under Emacs.
2001-01-30 13:47:51 +00:00
; Describe in PROBLEMS 2 problems with keyboard input * etc/PROBLEMS: Describe problems with WSL and PGTK keyboard input. (Bug#65802) (Bug#65811)
2023-09-08 12:35:05 +00:00
*** PGTK build of Emacs running on Wayland doesn't recognize Hyper modifier
If you arrange for the Wayland compositor to send the Hyper key
modifier (e.g., via XKB customizations), the Hyper modifier will still
not be reported to Emacs.
The reason is that GDK 3.x doesn't recognize the Hyper key modifier.
Since GDK 3.x is no longer developed, this bug in GDK will probably
never be solved. And the Emacs PGTK build cannot yet support GTK4,
where this problem is reportedly solved.
etc/PROBLEMS: Document keyboard ghosting with M-| (Bug#10740).
2012-03-12 09:55:35 +00:00
*** Unable to enter the M-| key on some German keyboards.
Some users have reported that M-| suffers from "keyboard ghosting".
This can't be fixed by Emacs, as the keypress never gets passed to it
at all (as can be verified using "xev"). You can work around this by
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
typing 'ESC |' instead.
etc/PROBLEMS: Document keyboard ghosting with M-| (Bug#10740).
2012-03-12 09:55:35 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** "Compose Character" key does strange things when used as a Meta key.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you define one key to serve as both Meta and Compose Character, you
will get strange results. In previous Emacs versions, this "worked"
in that the key acted as Meta--that's because the older Emacs versions
did not try to support Compose Character. Now Emacs tries to do
character composition in the standard X way. This means that you
must pick one meaning or the other for any given key.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You can use both functions (Meta, and Compose Character) if you assign
them to two different keys.
Improve recommendations for speedups over the net.
2002-10-07 22:46:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** C-z just refreshes the screen instead of suspending Emacs.
Improve recommendations for speedups over the net.
2002-10-07 22:46:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You are probably using a shell that doesn't support job control, even
though the system itself is capable of it. Either use a different shell,
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
or set the variable 'cannot-suspend' to a non-nil value.
Improve recommendations for speedups over the net.
2002-10-07 22:46:09 +00:00
; * etc/PROBLEMS: Workaround for Windows key "stuck" (bug#68914).
2024-02-04 14:11:20 +00:00
*** Emacs running on WSL receives stray characters as input.
For example, you could see Emacs inserting 'z' characters even though
nothing is typed on the keyboard, and even if you unplug the keyboard.
The reason is a bug in the WSL X server's handling of key-press and
key-repeat events. A workaround is to use the Cygwin or native
MS-Windows build of Emacs instead.
*** On MS-Windows, the Windows key gets "stuck".
When this problem happens, Windows behaves as if the Windows key were
permanently pressed down. This could be a side effect of Emacs on
MS-Windows hooking keyboard input on a low level, in order to support
registering the Windows keys as hot keys. If that hook takes too much
time for some reason, Windows can decide to remove the hook, which
then has this effect.
This is arguably a bug in Emacs, for which we don't yet have a
solution. To work around, set the 'LowLevelHooksTimeout' value in the
registry key "HKEY_CURRENT_USER\Control Panel\Desktop" to a number
higher than 200 msec; the maximum allowed value is 1000 msec (create
the value if it doesn't exist under that key).
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Mailers and other helper programs
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** movemail compiled with POP support can't connect to the POP server.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
; * etc/PROBLEMS: Clarify the issue with insecure POP connections.
2017-03-17 08:57:30 +00:00
This problem can occur if you do not configure --with-mailutils,
and don't have GNU Mailutils installed. Then Emacs uses its own
version of movemail, which doesn't support secure POP connections.
To solve this, install GNU Mailutils.
Also, make sure that the 'pop' entry in /etc/services, or in the
services NIS map if your machine uses NIS, has the same port number as
the entry on the POP server. A common error is for the POP server to
be listening on port 110, the assigned port for the POP3 protocol,
while the client is trying to connect on port 109, the assigned port
for the old POP protocol.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** RMAIL gets error getting new mail.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
RMAIL gets new mail from /usr/spool/mail/$USER using a program
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
called 'movemail'. This program interlocks with /bin/mail using
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the protocol defined by /bin/mail.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
There are two different protocols in general use. One of them uses
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
the 'flock' system call. The other involves creating a lock file;
'movemail' must be able to write in /usr/spool/mail in order to do
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
this. You control which one is used by defining, or not defining,
etc/PROBLEMS small updates Remove references to m/ and s/ files. Remove reference to hpux _FILE_OFFSET_BITS issue, no longer true since 2012-05-31.
2012-07-31 06:58:54 +00:00
the macro MAIL_USE_FLOCK in config.h.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
IF YOU DON'T USE THE FORM OF INTERLOCKING THAT IS NORMAL ON YOUR
SYSTEM, YOU CAN LOSE MAIL!
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If your system uses the lock file protocol, and fascist restrictions
prevent ordinary users from writing the lock files in /usr/spool/mail,
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
you may need to make 'movemail' setgid to a suitable group such as
'mail'. To do this, use the following commands (as root) after doing the
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
make install.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
chgrp mail movemail
chmod 2755 movemail
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Installation normally copies movemail from the build directory to an
installation directory which is usually under /usr/local/lib. The
installed copy of movemail is usually in the directory
/usr/local/lib/emacs/VERSION/TARGET. You must change the group and
mode of the installed copy; changing the group and mode of the build
directory copy is ineffective.
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** rcs2log gives you the awk error message "too many fields".
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is due to an arbitrary limit in certain versions of awk.
The solution is to use gawk (GNU awk).
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
; * etc/PROBLEMS: Fix typo.
2023-08-10 10:42:30 +00:00
*** Saving a file encrypted with GnuPG via EasyPG hangs.
; * etc/PROBLEMS: Document problem with GnuPG 2.4.1. (Bug#63256)
2023-05-23 15:04:24 +00:00
This is known to happen with GnuPG v2.4.1. The only known workaround
; * etc/PROBLEMS: Document that GnuPG 2.4.4 solves the EasyPG hangs.
2024-01-26 19:05:43 +00:00
is to downgrade to a version of GnuPG older than 2.4.1, or upgrade to
version 2.4.4 and newer, which reportedly solves the problem. Note
that GnuPG v2.2.42 and later also has this problem, so you should also
avoid those later 2.2.4x versions; v2.2.41 is reported to work fine.
; * etc/PROBLEMS: Document problem with GnuPG 2.4.1. (Bug#63256)
2023-05-23 15:04:24 +00:00
* etc/PROBLEMS: Add entry about pinentry with gpgsm. (Bug#67012)
2023-11-25 14:26:52 +00:00
*** EasyPG loopback pinentry does not work with gpgsm.
This happens with the 'gpgsm' command from all versions of GnuPG.
EasyPG relies on the machine-parseable interface that is provided by
'gpg2' with option '--status-fd', but gpgsm does not support this.
As a workaround, input the passphrase with a GUI-capable pinentry
program like 'pinentry-gnome' or 'pinentry-qt5'. Alternatively, you
can use the 'pinentry' package from Emacs 25.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Problems with hostname resolution
Document problems with ange-ftp in the Windows port and the Cygwin FTP client.
2001-09-10 15:26:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs does not know your host's fully-qualified domain name.
Suggest to upgrade ncurses if Emacs aborts inside tparam1.
2002-01-04 10:15:04 +00:00
Expand a bit on Emacs not knowing fqdn.
2007-04-19 17:07:15 +00:00
For example, (system-name) returns some variation on
"localhost.localdomain", rather the name you were expecting.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You need to configure your machine with a fully qualified domain name,
* PROBLEMS: Omit obsolete mention of FQDNs.
2014-12-30 04:42:26 +00:00
(i.e., a name with at least one "."), either in /etc/hostname
or wherever your system calls for specifying this.
Document problems with insufficient number of colors on X.
2002-01-22 11:03:19 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you cannot fix the configuration, you can set the Lisp variable
mail-host-address to the value you want.
Document problems with insufficient number of colors on X.
2002-01-22 11:03:19 +00:00
* etc/PROBLEMS: More removal of old stuff
2014-01-07 02:11:14 +00:00
** NFS
Document problems with insufficient number of colors on X.
2002-01-22 11:03:19 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs says it has saved a file, but the file does not actually
appear on disk.
Document problems with insufficient number of colors on X.
2002-01-22 11:03:19 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen on certain systems when you are using NFS, if the
remote disk is full. It is due to a bug in NFS (or certain NFS
implementations), and there is apparently nothing Emacs can do to
detect the problem. Emacs checks the failure codes of all the system
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
calls involved in writing a file, including 'close'; but in the case
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
where the problem occurs, none of those system calls fails.
Document problems with insufficient number of colors on X.
2002-01-22 11:03:19 +00:00
* etc/PROBLEMS: Remove some more old information.
2010-05-27 06:13:23 +00:00
** PSGML conflicts with sgml-mode.
A work-around for blinking block cursor on a GNU/Linux console.
2001-11-17 17:25:41 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
PSGML package uses the same names of some variables (like keymap)
as built-in sgml-mode.el because it was created as a replacement
of that package. The conflict will be shown if you load
sgml-mode.el before psgml.el. E.g. this could happen if you edit
HTML page and then start to work with SGML or XML file. html-mode
(from sgml-mode.el) is used for HTML file and loading of psgml.el
(for sgml-mode or xml-mode) will cause an error.
A work-around for blinking block cursor on a GNU/Linux console.
2001-11-17 17:25:41 +00:00
Document problems with PCL-CVS wrt CVS v1.12.8 and 1.12.9.
2005-02-19 12:56:21 +00:00
** PCL-CVS
*** Lines are not updated or new lines are added in the buffer upon commit.
When committing files located higher in the hierarchy than the examined
directory, some versions of the CVS program return an ambiguous message
from which PCL-CVS cannot extract the full location of the committed
files. As a result, the corresponding lines in the PCL-CVS buffer are
not updated with the new revision of these files, and new lines are
added to the top-level directory.
This can happen with CVS versions 1.12.8 and 1.12.9. Upgrade to CVS
1.12.10 or newer to fix this problem.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Miscellaneous problems
Document that help echo for menu items doesn't work on Windows.
2001-07-27 11:13:18 +00:00
Document that `set-mouse-color' does not work everywhere * etc/PROBLEMS (Miscellaneous Problems): Mention where `set-mouse-color' does not work.
2023-08-10 07:31:03 +00:00
*** 'set-mouse-color' and the '-ms' command line argument do not work.
Systems where the default cursors are not simple 1 bit-per-pixel
bitmaps usually forbid recoloring the cursor, since it is unclear
which colors should replace those already present within each cursor
image. For example, 'set-mouse-color' and '-ms' have no function on X
systems with GNOME, KDE, and other recent desktop environments
employing cursor images containing colors and partial transparency.
Changing the cursor color is also impossible on MS-Windows and PGTK
systems. In the former case, it is because the prerequisite code has
yet to be written. In the latter, it is because GTK does not provide
for changing the color of cursor images.
Revert "Remove PROBLEMS section on double-buffering" This reverts commit 366b2bc757d011f96693bd219877c5aa42fa3359. We cannot be sure this problem is no longer relevant, since its root cause was in software we don't control, and cannot tell whether any of the versions where that problem happened are still out in the wild.
2022-02-21 17:01:14 +00:00
*** Display artifacts on GUI frames on X-based systems.
This is known to be caused by using double-buffering (which is enabled
by default in Emacs 26 and later). The artifacts typically appear
after commands that cause Emacs to scroll the display.
You can disable double-buffering by evaluating the following form:
(modify-all-frames-parameters '((inhibit-double-buffering . t)))
To make this permanent, add it to your ~/.emacs init file.
Note that disabling double-buffering will cause flickering of the
display in some situations.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Self-documentation messages are garbled.
*** empty log message ***
2002-04-28 18:56:22 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
This means that the file 'etc/DOC' doesn't properly correspond
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
with the Emacs executable. Redumping Emacs and then installing the
corresponding pair of files should fix the problem.
Document problems with the MS-Windows port of v21.1 and with the Cygwin port of Bash when run under Emacs.
2001-01-30 13:47:51 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** Programs running under terminal emulator do not recognize 'emacs'
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
terminal type.
Document problems with the MS-Windows port of v21.1 and with the Cygwin port of Bash when run under Emacs.
2001-01-30 13:47:51 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The cause of this is a shell startup file that sets the TERMCAP
environment variable. The terminal emulator uses that variable to
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
provide the information on the special terminal type that Emacs emulates.
Document problems with the MS-Windows port of v21.1 and with the Cygwin port of Bash when run under Emacs.
2001-01-30 13:47:51 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Rewrite your shell startup file so that it does not change TERMCAP
in such a case. You could use the following conditional which sets
it only if it is undefined.
Document problems with the MS-Windows port of v21.1 and with the Cygwin port of Bash when run under Emacs.
2001-01-30 13:47:51 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
if ( ! ${?TERMCAP} ) setenv TERMCAP ~/my-termcap-file
Document problems with NTEmacs on Windows 2000, related to the Windows i18n features.
2001-04-27 16:51:05 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Or you could set TERMCAP only when you set TERM--which should not
happen in a non-login shell.
Added note about format-time-string deficiencies on MS-Windows.
2002-03-12 20:27:24 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** In Shell mode, you get a ^M at the end of every line.
Document problems with libjpeg unavailable as a shared library.
2001-02-09 10:42:05 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This happens to people who use tcsh, because it is trying to be too
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
smart. It sees that the Shell uses terminal type 'unknown' and turns
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
on the flag to output ^M at the end of each line. You can fix the
problem by adding this to your .cshrc file:
*** empty log message ***
2002-07-24 03:59:52 +00:00
Don’t recommend obsolete EMACS env var * doc/misc/efaq.texi (Escape sequences in shell output): Remove long-obsolete (and now-confusing) notes about the EMACS environment variable in Emacs 21.1 and earlier. * doc/misc/efaq.texi (^M in the shell buffer): * etc/PROBLEMS: Remove obsolescent recommendation to consult the EMACS environment variable.
2016-04-07 23:52:01 +00:00
if ($?INSIDE_EMACS && $?tcsh)
unset edit
stty -icrnl -onlcr -echo susp ^Z
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
endif
Document problems with libjpeg unavailable as a shared library.
2001-02-09 10:42:05 +00:00
; Describe the problem with ksh when resizing shell window * etc/PROBLEMS: Mention the problem with ksh when the shell window is resized. For details, see the discussion starting in http://lists.gnu.org/archive/html/emacs-devel/2017-04/msg00888.html. Reported by Mike Kupfer <mkupfer@alum.berkeley.edu>.
2017-05-09 16:34:39 +00:00
*** In Shell buffers using ksh, resizing a window inserts random characters.
The characters come from the PS2 prompt, but they are not followed by
a newline, which messes up the next command you type. This strange
effect is caused by Emacs 25 and later telling the shell that its
screen size changed.
To work around the problem, customize the option
'window-adjust-process-window-size-function' to "Do not adjust process
window sizes" (Lisp value 'ignore').
; * etc/PROBLEMS: Describe problems with MuPDF 1.21. (Bug#60308)
2023-01-14 08:52:06 +00:00
*** Displaying PDF files in DocView produces an empty buffer.
This can happen if your Emacs is configured to convert PDF to SVG for
display, and the version of the MuPDF package you have installed has a
a known bug, whereby it sometimes produces invalid SVG images.
Version 1.21 of MuPDF is known to be affected.
The solution is either to upgrade or downgrade to a version of MuPDF
that doesn't have this bug, or to disable conversion of PDF files to
SVG images by customizing the user option 'doc-view-mupdf-use-svg'.
Emacs will then convert PDF to PNG images instead.
; etc/PROBLEMS: Explain about the python+libedit problem (Bug#25753).
2017-03-01 22:53:12 +00:00
*** In Inferior Python mode, input is echoed and native completion doesn't work.
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=25753>
This happens when python uses a libedit based readline module, which
is the default on macOS. This can be worked around by installing a
GNU readline based module instead, for example, using setuptools
sudo easy_install gnureadline
And then rename the system's readline so that it won't be loaded:
cd /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload
mv readline.so readline.so.bak
See <https://pypi.python.org/pypi/gnureadline> for more details on
installation.
Describe problems with invoking Python on MS-Windows * etc/PROBLEMS: Describe problems with running an inferior Python interpreter due to the MS-Windows "App Execution Aliases" feature. (Bug#54860)
2022-04-14 06:17:01 +00:00
*** On MS-Windows, invoking "M-x run-python" signals an error.
If the error says something like this:
Python was not found; run with arguments to install
from the Microsoft Store, or disable this shortcut
from Settings > Manage App Execution Aliases.
Process Python exited abnormally with code 49
then this is due to the MS-Windows "feature" that is intended to
encourage you to install the latest available Python version. It
works by placing "fake" python.exe and python3.exe executables in a
special directory, and having that directory on your Path _before_ the
directory where the real Python executable is installed. That "fake"
Python then decides whether to redirect you to the Microsoft Store or
invoke the actual Python. The directory where Windows keeps those
"fake" executables is under your Windows user's 'AppData' directory,
typically 'C:\Users\<user>\AppData\Local\Microsoft\WindowsApps', where
"<user>" is the user name of your Windows user.
To solve this, you have several alternatives:
. Go to "Settings > Manage App Execution Aliases" and turn OFF the
aliases for python.exe and/or python3.exe. This will affect only
Python, and may require you to manage upgrades to your Python
installation manually, instead of being automatically prompted by
MS-Windows.
. Move the directory with the "fake" executables to the end of Path,
or at least after the directory where the real Python is
installed. Depending on the position in Path where you move it,
it will affect Python and/or other programs which Windows monitors
via the "App Execution Aliases" feature.
. Manually remove python.exe and/or python3.exe from the above
directory. Again, this affects only your Python installation.
Whatever you do, you will need to restart Emacs to refresh its notion
of the directory where python.exe/python3.exe lives, because that is
recorded when Python mode is started.
* etc/PROBLEMS: Add entry about dir-locals and some auto-mounters.
2015-03-23 00:10:10 +00:00
*** Visiting files in some auto-mounted directories causes Emacs to print
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'Error reading dir-locals: (file-error "Read error" "is a directory" ...'
* etc/PROBLEMS: Add entry about dir-locals and some auto-mounters.
2015-03-23 00:10:10 +00:00
This can happen if the auto-mounter mistakenly reports that
.dir-locals.el exists and is a directory. There is nothing Emacs can
do about this, but you can avoid the issue by adding a suitable entry
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
to the variable 'locate-dominating-stop-dir-regexp'. For example, if
* etc/PROBLEMS: Add entry about dir-locals and some auto-mounters.
2015-03-23 00:10:10 +00:00
the problem relates to "/smb/.dir-locals.el", set that variable
to a new value where you replace "net\\|afs" with "net\\|afs\\|smb".
(The default value already matches common auto-mount prefixes.)
maint: shorten https://lists.gnu.org/archive/html/... links
2017-11-26 06:45:41 +00:00
See https://lists.gnu.org/r/help-gnu-emacs/2015-02/msg00461.html .
* etc/PROBLEMS: Add entry about dir-locals and some auto-mounters.
2015-03-23 00:10:10 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Attempting to visit remote files via ange-ftp fails.
Add an entry about fonts and colors problems on KDE.
2001-12-08 10:37:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If the error message is "ange-ftp-file-modtime: Specified time is not
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
representable", then this could happen when 'lukemftp' is used as the
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
ftp client. This was reported to happen on Debian GNU/Linux, kernel
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
version 2.4.3, with 'lukemftp' 1.5-5, but might happen on other
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
systems as well. To avoid this problem, switch to using the standard
ftp client. On a Debian system, type
Add an entry about fonts and colors problems on KDE.
2001-12-08 10:37:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
update-alternatives --config ftp
Add an entry about fonts and colors problems on KDE.
2001-12-08 10:37:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
and then choose /usr/bin/netkit-ftp.
Add an entry about fonts and colors problems on KDE.
2001-12-08 10:37:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Dired is very slow.
Document problems with `df' slowing down Dired.
2002-03-15 15:23:15 +00:00
Port file-system-info to non-Microsoft * admin/merge-gnulib (GNULIB_MODULES): Add fsusage. * doc/emacs/files.texi (Directories): Remove documentation of now-obsolete directory-free-space-program and directory-free-space-args. * etc/NEWS: Mention change. * etc/PROBLEMS: Slow df is no longer a problem. * lib/fsusage.c, lib/fsusage.h, m4/fsusage.m4: New files, copied from Gnulib. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * lisp/dired.el (dired-free-space-program) (dired-free-space-args): These aliases are now obsolete. * lisp/files.el (directory-free-space-program) (directory-free-space-args): Now obsolete. (get-free-disk-space): Just call file-system-info instead of the now-obsolete directory-free-space-program. * nt/gnulib-cfg.mk (OMIT_GNULIB_MODULE_fsusage): New macro. * src/fileio.c: Include fsusage.h. (blocks_to_bytes, Ffile_system_info) [!DOS_NT]: New functions. (syms_of_fileio) [!DOS_NT]: Defsubr file-system-info.
2017-10-02 05:31:39 +00:00
This could happen if getting a file system's status takes a long
Document problems with `df' slowing down Dired.
2002-03-15 15:23:15 +00:00
time. Possible reasons for this include:
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
- ClearCase mounted filesystems (VOBs) that sometimes make 'df'
Document problems with `df' slowing down Dired.
2002-03-15 15:23:15 +00:00
response time extremely slow (dozens of seconds);
- slow automounters on some old versions of Unix;
Port file-system-info to non-Microsoft * admin/merge-gnulib (GNULIB_MODULES): Add fsusage. * doc/emacs/files.texi (Directories): Remove documentation of now-obsolete directory-free-space-program and directory-free-space-args. * etc/NEWS: Mention change. * etc/PROBLEMS: Slow df is no longer a problem. * lib/fsusage.c, lib/fsusage.h, m4/fsusage.m4: New files, copied from Gnulib. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * lisp/dired.el (dired-free-space-program) (dired-free-space-args): These aliases are now obsolete. * lisp/files.el (directory-free-space-program) (directory-free-space-args): Now obsolete. (get-free-disk-space): Just call file-system-info instead of the now-obsolete directory-free-space-program. * nt/gnulib-cfg.mk (OMIT_GNULIB_MODULE_fsusage): New macro. * src/fileio.c: Include fsusage.h. (blocks_to_bytes, Ffile_system_info) [!DOS_NT]: New functions. (syms_of_fileio) [!DOS_NT]: Defsubr file-system-info.
2017-10-02 05:31:39 +00:00
To work around the problem, you could use Git or some other
free-software program, instead of ClearCase.
Document problems with `df' slowing down Dired.
2002-03-15 15:23:15 +00:00
* etc/PROBLEMS: Describe problems with remote files. (Bug#56499)
2022-07-14 07:00:41 +00:00
*** Various commands that visit files on networked filesystems fail.
This could happen if the filesystem of those files is mounted in a way
that causes the files to be accessed via a symlink. One such example
is the 'amd' automounter, which unmounts the filesystem after some
period of lack of use. Another example is Emacs running on MS-Windows
that accesses files on remote server via symlinks whose target is a
UNC of the form '\\server\share'.
The reason for these problems is that some Emacs commands visit files
via their truename, resolving the symlink, which causes these files'
default-directory to also have the symlink resolved. If the resolved
directory has access problems, subsequent commands from that file's
buffer could fail. For example, the stock MS-Windows shell 'cmd.exe'
is unable to use a UNC-form directory as the current directory, so
'shell-command' and its callers will typically fail. Similarly with
using targets of symlinks which no longer mount the remote filesystem
will fail.
You can solve these problems in several ways:
- Write a 'find-file'hook' function which will change the value of
'default-directory' to reference the symlink instead of its
target.
- Set up 'directory-abbrev-alist' to automatically convert the
'default-directory' of such files in the same manner.
- On MS-Windows, map a drive letter to the '\\server\share'
directory and point your symlinks to a directory name that uses
the drive letter.
*** On MS-Windows, visiting files in OneDrive fails.
This is known to happen when OneDrive is accessed via the so-called
"metered connections", whose use is charged by the volume of
transferred data. Those are typically wireless links using a modem or
a mobile phone. In these cases, files that are left in the cloud and
not downloaded to the local computer can produce various failures in
system calls that access the files or their meta-data.
The solution is to disable the "metered connection" status from the
WiFi properties (reachable from the Windows Settings menu). This will
cause files to be downloaded to the local computer when they are
accessed (which could take some time, and Emacs functions accessing
the file will wait for that), avoiding the errors.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** On systems with shared libraries you might encounter run-time errors
*** empty log message ***
2000-11-28 15:36:30 +00:00
from the dynamic linker telling you that it is unable to find some
shared libraries, for instance those for Xaw3d or image support.
These errors mean Emacs has been linked with a library whose shared
library is not in the default search path of the dynamic linker.
Clarify that problems with shared libraries can also happen during the build.
2001-10-30 11:58:45 +00:00
Similar problems could prevent Emacs from building, since the build
process invokes Emacs several times.
*** empty log message ***
2000-11-28 15:36:30 +00:00
On many systems, it is possible to set LD_LIBRARY_PATH in your
environment to specify additional directories where shared libraries
can be found.
; Grammar fixes ("allow to" et al) Ref: https://lists.gnu.org/r/emacs-devel/2016-01/msg01598.html https://lists.gnu.org/r/emacs-devel/2016-01/msg01465.html
2023-09-17 14:49:21 +00:00
Other systems allow setting LD_RUN_PATH in a similar way, but before
*** empty log message ***
2000-11-28 15:36:30 +00:00
Emacs is linked. With LD_RUN_PATH set, the linker will include a
specified run-time search path in the executable.
Please refer to the documentation of your dynamic linker for details.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** When you run Ispell from Emacs, it reports a "misalignment" error.
Document problems with OPENSTEP's gcc. Provide a work-around.
2001-06-15 11:37:56 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if you compiled the Ispell program to use ASCII
characters only and then try to use it from Emacs with non-ASCII
characters, like Latin-1. The solution is to recompile Ispell with
support for 8-bit characters.
Document problems with OPENSTEP's gcc. Provide a work-around.
2001-06-15 11:37:56 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To see whether your Ispell program supports 8-bit characters, type
this at your shell's prompt:
Document problems with OPENSTEP's gcc. Provide a work-around.
2001-06-15 11:37:56 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
ispell -vv
Document problems with OPENSTEP's gcc. Provide a work-around.
2001-06-15 11:37:56 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
and look in the output for the string "NO8BIT". If Ispell says
"!NO8BIT (8BIT)", your speller supports 8-bit characters; otherwise it
does not.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To rebuild Ispell with 8-bit character support, edit the local.h file
in the Ispell distribution and make sure it does _not_ define NO8BIT.
Then rebuild the speller.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another possible cause for "misalignment" error messages is that the
version of Ispell installed on your machine is old. Upgrade.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Yet another possibility is that you are trying to spell-check a word
in a language that doesn't fit the dictionary you choose for use by
Ispell. (Ispell can only spell-check one language at a time, because
it uses a single dictionary.) Make sure that the text you are
spelling and the dictionary used by Ispell conform to each other.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If your spell-checking program is Aspell, it has been reported that if
you have a personal configuration file (normally ~/.aspell.conf), it
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
can cause this error. Remove that file, execute 'ispell-kill-ispell'
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
in Emacs, and then try spell-checking again.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
* etc/PROBLEMS: Mention gnutls-cli 3.5.3 (Bug#24247).
2016-08-23 19:27:54 +00:00
*** TLS problems, e.g., Gnus hangs when fetching via imaps
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
https://debbugs.gnu.org/24247
* etc/PROBLEMS: Mention gnutls-cli 3.5.3 (Bug#24247).
2016-08-23 19:27:54 +00:00
gnutls-cli 3.5.3 (2016-08-09) does not generate a "- Handshake was
completed" message that tls.el relies upon, causing affected Emacs
functions to hang. To work around the problem, use older or newer
versions of gnutls-cli, or use Emacs's built-in gnutls support.
; * etc/PROBLEMS: Move librsvg-related item to better location. Reported by Mike Kupfer <mkupfer@alum.berkeley.edu>.
2021-11-08 03:51:44 +00:00
*** SVG images may be cropped incorrectly with librsvg 2.45 or older.
Librsvg 2.46 and above have improved geometry code which Emacs is able
to take advantage of.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Runtime problems related to font handling
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
Whitelist some incorrectly labeled "color" fonts under Xft * etc/PROBLEMS: Document problem with fonts incorrectly labeled as color fonts under Xft. * src/ftfont.c (xft_color_font_whitelisted_p): New function. (ftfont_spec_pattern, ftfont_list): Respect whitelisting of "color" fonts under Xft. * src/xftfont.c (syms_of_xftfont): New variable `xft-color-font-whitelist'.
2022-05-19 12:10:19 +00:00
** Some fonts are detected but not usable under Xft.
Some fonts might not be usable under Emacs even though they show up in
the font family list when Emacs is built with Xft. This is because
Emacs prevents fonts that have color glyphs (such as color Emoji) from
being used, since they typically cause Xft crashes.
On some GNU/Linux systems, fonts (such as Source Code Pro) that do not
have color glyphs are reported as color fonts, causing them to be
unavailable when using Xft. This is known to happen under Fedora
GNU/Linux 36 or later, and possibly other distributions as well.
If you encounter a such a font, you can enable it while ignoring other
fonts that actually have color glyphs by adding its family name to the
list `xft-color-font-whitelist'.
Document monospace font problems.
2008-10-25 17:19:12 +00:00
** Characters are displayed as empty boxes or with wrong font under X.
Tell people how to remove fontconfig customizations
2021-01-05 13:42:10 +00:00
*** This may be due to your local fontconfig customization.
Try removing or moving aside "$XDG_CONFIG_HOME/fontconfig/conf.d" and
"$XDG_CONFIG_HOME/fontconfig/fonts.conf"
($XDG_CONFIG_HOME is treated as "~/.config" if not set)
Describe how to debug fontconfig issues * etc/PROBLEMS: Add FC_DEBUG usage pointers.
2021-10-20 16:22:40 +00:00
Running Emacs as
FC_DEBUG=1024 emacs
will cause fontconfig to output information about which configuration
files it is reading. Running Emacs as
FC_DEBUG=1 emacs
will result in information about the results of fontconfig's font
matching (including the filename(s) of the resulting fonts).
Document monospace font problems.
2008-10-25 17:19:12 +00:00
*** This can occur when two different versions of FontConfig are used.
For example, XFree86 4.3.0 has one version and Gnome usually comes
with a newer version. Emacs compiled with Gtk+ will then use the
newer version. In most cases the problem can be temporarily fixed by
stopping the application that has the error (it can be Emacs or any
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
other application), removing ~/.fonts.cache-1, and then starting the
Document monospace font problems.
2008-10-25 17:19:12 +00:00
application again. If removing ~/.fonts.cache-1 and restarting
doesn't help, the application with problem must be recompiled with the
same version of FontConfig as the rest of the system uses. For KDE,
it is sufficient to recompile Qt.
*** Some fonts have a missing glyph and no default character. This is
* etc/PROBLEMS: Add hex codepoint for NO-BREAK SPACE
2021-10-20 16:27:36 +00:00
known to occur for character number 160 (no-break space, U+A0) in some
Document monospace font problems.
2008-10-25 17:19:12 +00:00
fonts, such as Lucida but Emacs sets the display table for the unibyte
and Latin-1 version of this character to display a space.
*** Some of the fonts called for in your fontset may not exist on your
X server.
Document problems with bad specifications of the default fontset.
2001-09-26 19:21:00 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
Each X font covers just a fraction of the characters that Emacs
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
supports. To display the whole range of Emacs characters requires
Document monospace font problems.
2008-10-25 17:19:12 +00:00
many different fonts, collected into a fontset. You can remedy the
problem by installing additional fonts.
Document problems with compressed subdirs.el.
2001-06-20 10:52:38 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The intlfonts distribution includes a full spectrum of fonts that can
Mention etl-unicode fonts in addition to intlfonts.
2006-06-30 12:40:06 +00:00
display all the characters Emacs supports. The etl-unicode collection
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
of fonts (available from
<https://ftp.nluug.nl/windowing/X/contrib/fonts/>) includes fonts that
can display many Unicode characters; they can also be used by ps-print
and ps-mule to print Unicode characters.
Document problems with compressed subdirs.el.
2001-06-20 10:52:38 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
** Under X, some characters appear improperly aligned in their lines.
Document problems with compressed subdirs.el.
2001-06-20 10:52:38 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
You may have bad fonts.
Document monospace font problems.
2008-10-25 17:19:12 +00:00
Document spacing issues with Xft for some fonts * etc/PROBLEMS: Document issues with Xft and some recent fonts (Bug#39082).
2020-01-14 09:49:28 +00:00
** Under X, some characters are unexpectedly wide.
e.g. recent versions of Inconsolata show this issue for almost all of
its characters. Due to what is probably an Xft bug, the determination
of the width of some characters is incorrect. One workaround is to
build emacs with Cairo enabled ("configure --with-cairo" and have the
appropriate Cairo development packages installed) as this
configuration does not suffer from this problem. See
<https://github.com/googlefonts/Inconsolata/issues/42> and
; shorten https://lists.gnu.org/archive/html/... links
2020-10-09 10:23:02 +00:00
<https://lists.gnu.org/r/bug-gnu-emacs/2020-01/msg00456.html>
Document spacing issues with Xft for some fonts * etc/PROBLEMS: Document issues with Xft and some recent fonts (Bug#39082).
2020-01-14 09:49:28 +00:00
for more discussion.
Document monospace font problems.
2008-10-25 17:19:12 +00:00
** Under X, an unexpected monospace font is used as the default font.
When compiled with XFT, Emacs tries to use a default font named
"monospace". This is a "virtual font", which the operating system
(Fontconfig) redirects to a suitable font such as DejaVu Sans Mono.
On some systems, there exists a font that is actually named Monospace,
which takes over the virtual font. This is considered an operating
system bug; see
Document problems with compressed subdirs.el.
2001-06-20 10:52:38 +00:00
maint: shorten https://lists.gnu.org/archive/html/... links
2017-11-26 06:45:41 +00:00
https://lists.gnu.org/r/emacs-devel/2008-10/msg00696.html
Another reason for failures related to fontset.elc.
2001-11-30 08:24:22 +00:00
Document monospace font problems.
2008-10-25 17:19:12 +00:00
If you encounter this problem, set the default font to a specific font
in your .Xresources or initialization file. For instance, you can put
the following in your .Xresources:
Emacs.font: DejaVu Sans Mono 12
** Certain fonts make each line take one pixel more than it should.
This is because these fonts contain characters a little taller than
the font's nominal height. Emacs needs to make sure that lines do not
overlap.
Another reason for failures related to fontset.elc.
2001-11-30 08:24:22 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Font Lock displays portions of the buffer in incorrect faces.
Added stale load-path problems.
2001-12-02 21:03:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
By far the most frequent cause of this is a parenthesis '(' or a brace
'{' in column zero. Font Lock assumes that such a paren is outside of
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
any comment or string. This is of course not true in general, but the
vast majority of well-formatted program source files don't have such
parens, and therefore this assumption is used to allow optimizations
in Font Lock's syntactical analysis. These optimizations avoid some
pathological cases where jit-lock, the Just-in-Time fontification
introduced with Emacs 21.1, could significantly slow down scrolling
through the buffer, especially scrolling backwards, and also jumping
to the end of a very large buffer.
Added stale load-path problems.
2001-12-02 21:03:42 +00:00
Change release version from 21.4 to 22.1 throughout. Change development version from 21.3.50 to 22.0.50.
2005-02-09 15:50:47 +00:00
Beginning with version 22.1, a parenthesis or a brace in column zero
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
is highlighted in bold-red face if it is inside a string or a comment,
to indicate that it could interfere with Font Lock (and also with
indentation) and should be moved or escaped with a backslash.
Added stale load-path problems.
2001-12-02 21:03:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you don't use large buffers, or have a very fast machine which
makes the delays insignificant, you can avoid the incorrect
fontification by setting the variable
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'font-lock-beginning-of-syntax-function' to a nil value. (This must
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
be done _after_ turning on Font Lock.)
Document problems with lukemftp.
2001-05-09 15:21:44 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another alternative is to avoid a paren in column zero. For example,
in a Lisp string you could precede the paren with a backslash.
Document problems with lukemftp.
2001-05-09 15:21:44 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs pauses for several seconds when changing the default font.
Document the problems with MS-Windows antivirus problems.
2001-08-23 12:00:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This has been reported for fvwm 2.2.5 and the window manager of KDE
2.1. The reason for the pause is Xt waiting for a ConfigureNotify
event from the window manager, which the window manager doesn't send.
Xt stops waiting after a default timeout of usually 5 seconds.
Added note about subprocesses on Windows 9x.
2000-11-19 12:36:50 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A workaround for this is to add something like
Added note about subprocesses on Windows 9x.
2000-11-19 12:36:50 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
emacs.waitForWM: false
Updates for current state of Windows port.
2002-01-14 21:07:59 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
to your X resources. Alternatively, add '(wait-for-wm . nil)' to a
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
frame's parameter list, like this:
Updates for current state of Windows port.
2002-01-14 21:07:59 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(modify-frame-parameters nil '((wait-for-wm . nil)))
Documented Mouse wheel problems on MS-Windows.
2003-06-14 11:26:08 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
(this should go into your '.emacs' file).
Documented Mouse wheel problems on MS-Windows.
2003-06-14 11:26:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Underlines appear at the wrong position.
Documented Mouse wheel problems on MS-Windows.
2003-06-14 11:26:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is caused by fonts having a wrong UNDERLINE_POSITION property.
Doc tweak for x-use-underline-position-properties * src/xterm.c (syms_of_xterm) <x-use-underline-position-properties>: Remove ancient information from doc. * etc/PROBLEMS: Related edit.
2018-02-13 22:13:53 +00:00
To avoid this problem (seen in some very old X releases and font packages),
set x-use-underline-position-properties to nil.
Documented Mouse wheel problems on MS-Windows.
2003-06-14 11:26:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To see what is the value of UNDERLINE_POSITION defined by the font,
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
type 'xlsfonts -lll FONT' and look at the font's UNDERLINE_POSITION property.
Exchange mail mangling.
2000-11-13 23:31:10 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** When using Exceed, fonts sometimes appear too tall.
More information about how to find the Meta keys.
2001-07-26 15:43:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
When the display is set to an Exceed X-server and fonts are specified
(either explicitly with the -fn option or implicitly with X resources)
then the fonts may appear "too tall". The actual character sizes are
correct but there is too much vertical spacing between rows, which
gives the appearance of "double spacing".
More information about how to find the Meta keys.
2001-07-26 15:43:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To prevent this, turn off the Exceed's "automatic font substitution"
feature (in the font part of the configuration window).
More information about how to find the Meta keys.
2001-07-26 15:43:08 +00:00
Mention Tex superscript font issue.
2007-09-28 03:30:10 +00:00
** Subscript/superscript text in TeX is hard to read.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
If 'tex-fontify-script' is non-nil, tex-mode displays
Mention Tex superscript font issue.
2007-09-28 03:30:10 +00:00
subscript/superscript text in the faces subscript/superscript, which
are smaller than the normal font and lowered/raised. With some fonts,
nested superscripts (say) can be hard to read. Switching to a
different font, or changing your antialiasing setting (on an LCD
screen), can both make the problem disappear. Alternatively, customize
the following variables: tex-font-script-display (how much to
lower/raise); tex-suscript-height-ratio (how much smaller than
normal); tex-suscript-height-minimum (minimum height).
Document problem: slow screen refresh on missing font. See discussion of bug#22519 for more on this.
2016-05-25 21:42:54 +00:00
** Screen refresh is slow when there are special characters for which no suitable font is available
If the display is too slow in refreshing when you scroll to a new
region, or when you edit the buffer, it might be due to the fact that
some characters cannot be displayed in the default font, and Emacs is
spending too much time in looking for a suitable font to display them.
You can suspect this if you have several characters that are displayed
as small rectangles containing a hexadecimal code inside.
The solution is to install the appropriate fonts on your machine. For
instance if you are editing a text with a lot of math symbols, then
installing a font like 'Symbola' should solve this problem.
Document problems with nerd-fonts * etc/PROBLEMS (fonts): Describe the potential problems with nerd-fonts that cause slow display. (Bug#25697)
2017-02-18 10:36:43 +00:00
Another reason for slow display is reportedly the nerd-fonts
installation, even when Symbola is installed as well. Uninstalling
nerd-fonts was reported to solve the problem in that case.
Add a section about incorrect Bengali rendering.
2017-03-04 13:56:50 +00:00
** Emacs running on GNU/Linux system with the m17n library Ver.1.7.1 or the
; Fix typo in etc/PROBLEMS
2017-03-04 19:32:39 +00:00
earlier version has a problem with rendering Bengali script.
Add a section about incorrect Bengali rendering.
2017-03-04 13:56:50 +00:00
The problem can be fixed by installing the newer version of the m17n
library (if any), or by following this procedure:
1. Locate the file BENG-OTF.flt installed on your system as part of the
m17n library. Usually it is under the directory /usr/share/m17n.
2. Apply the following patch to BENG-OTF.flt
------------------------------------------------------------
diff --git a/FLT/BENG-OTF.flt b/FLT/BENG-OTF.flt
index 45cc554..0cc5e76 100644
--- a/FLT/BENG-OTF.flt
+++ b/FLT/BENG-OTF.flt
@@ -232,7 +232,7 @@
(lang-forms
(cond
("(.H)J" (1 :otf=beng=half+))
- (".H" :otf=beng=blwf,half,vatu+)
+ (".+H" :otf=beng=blwf,half,vatu+)
("." =)))
(post
------------------------------------------------------------
If you can't modify that file directly, copy it to the directory
~/.m17n.d/ (create it if it doesn't exist), and apply the patch.
Describe Lao rendering problem * etc/PROBLEMS: Describe a workaround for the problem of Lao rendering by OpenTyype font.
2017-11-07 11:53:32 +00:00
** Emacs running on GNU/Linux system with the m17n library Ver.1.7.1 or the
earlier version has a problem with rendering Lao script with OpenType font.
The problem can be fixed by installing the newer version of the m17n
library (if any), or by following this procedure:
1. Locate the file LAOO-OTF.flt installed on your system as part of the
m17n library. Usually it is under the directory /usr/share/m17n.
2. Apply the following patch to LAOO-OTF.flt
------------------------------------------------------------
diff --git a/FLT/LAOO-OTF.flt b/FLT/LAOO-OTF.flt
index 5504171..431adf8 100644
--- a/FLT/LAOO-OTF.flt
+++ b/FLT/LAOO-OTF.flt
@@ -3,7 +3,7 @@
;; See the end for copying conditions.
(font layouter laoo-otf nil
- (font (nil phetsarath\ ot unicode-bmp)))
+ (font (nil nil unicode-bmp :otf=lao\ )))
;;; <li> LAOO-OTF.flt
------------------------------------------------------------
If you can't modify that file directly, copy it to the directory
~/.m17n.d/ (create it if it doesn't exist), and apply the patch.
Merge from origin/emacs-28 d53c999b4a Further vcs-cvs/rcs-responsible-p updates from master dc3d1628ec ; * src/sysdep.c: Fix mistake in previous commit 855e15dbf1 Fix builds on older versions of macOS 9da744e450 Fix documentation of Outline minor mode options a8bb12ab05 Improve discoverability of 'insert-directory-program' 3f166bdf44 ; * etc/PROBLEMS: Describe MS-Windows issues with fonts. ... 803ac857ee Fix cursor motion under truncate-lines with Flymake fringe... # Conflicts: # etc/PROBLEMS # lisp/outline.el # src/sysdep.c
2022-04-16 17:58:31 +00:00
** On Haiku, some proportionally-spaced fonts display with artifacting.
This is a Haiku bug: https://dev.haiku-os.org/ticket/17229, which can
be remedied by using a different font that does not exhibit this
problem, or by configuring Emacs '--with-be-cairo'.
So far, Bitstream Charter and Noto Sans have been known to exhibit
this problem, while Noto Sans Display is known to not do so.
Mention in PROBLEMS the problems with fonts and Uniscribe * etc/PROBLEMS: Mention font-related problems with Uniscribe on MS-Windows. (Bug#39340)
2020-09-20 11:08:35 +00:00
** On MS-Windows, some characters display as boxes with hex code.
Also, some characters could display with wrong fonts.
This can happen if Emacs was compiled without HarfBuzz support, and/or
if the HarfBuzz DLLs are not available at run time. Emacs will then
fall back to the Uniscribe as its shaping engine; Uniscribe was
deprecated by Microsoft, and sometimes fails to display correctly when
modern fonts are used, such as Noto Emoji or Ebrima.
The solution is to switch to a configuration that uses HarfBuzz as its
shaping engine, where these problems don't exist.
; * etc/PROBLEMS: Describe MS-Windows issues with fonts. (Bug#54685)
2022-04-15 12:38:06 +00:00
** On MS-Windows, selecting some fonts as the default font doesn't work.
Add support for the Haiku operating system and its window system * .gitignore: Add binaries specific to Haiku. * Makefie.in (HAVE_BE_APP): New variable. (install-arch-dep): Install Emacs and Emacs.pdmp when using Haiku. * configure.ac: Detect and configure for Haiku and various related configurations. (be-app, be-freetype, be-cairo): New options. (HAVE_BE_APP, HAIKU_OBJ, HAIKU_CXX_OBJ) (HAIKU_LIBS, HAIKU_CFLAGS): New variables. (HAIKU, HAVE_TINY_SPEED_T): New define. (emacs_config_features): Add BE_APP. * doc/emacs/Makefile.in (EMACSSOURCES): Add Haiku appendix. * doc/emacs/emacs.texi: Add Haiku appendix to menus and include it. * doc/emacs/haiku.texi: New Haiku appendix. * doc/lispref/display.texi (Defining Faces, Window Systems): Explain meaning of `haiku' as a window system identifier. (haiku-use-system-tooltips): Explain meaning of system tooltips on Haiku. * doc/lispref/frames.texi (Multiple Terminals): Explain meaning of haiku as a display type. (Frame Layout): Clarify section for Haiku frames. (Size Parameters): Explain limitations of fullwidth and fullheight on Haiku. (Management Parameters): Explain limitations of inhibiting double buffering on builds with Cairo, and the inability of frames with no-accept-focus to receive keyboard input on Haiku. (Font and Color Parameters): Explain the different font backends available on Haiku. (Raising and Lowering): Explain that lowering and restacking frames doesn't work on Haiku. (Child Frames): Explain oddities of child frame visibility on Haiku. * doc/lispref/os.texi (System Environment): Explain meaning of haiku. * etc/MACHINES: Add appropriate notices for Haiku. * etc/NEWS: Document changes. * etc/PROBLEMS: Document font spacing bug on Haiku. * lib-src/Makefile.in: Build be-resources binary on Haiku. (CXX, CXXFLAGS, NON_CXX_FLAGS, ALL_CXXFLAGS) (HAVE_BE_APP, HAIKU_LIBS, HAIKU_CFLAGS): New variables. (DONT_INSTALL): Add be-resources binary if on Haiku. (be-resources): New target. * lib-src/be_resources: Add helper binary for setting resources on the Emacs application. * lib-src/emacsclient.c (decode_options): Set alt_display to "be" on Haiku. * lisp/cus-edit.el (custom-button, custom-button-mouse) (custom-button-unraised, custom-button-pressed): Update face definitions for Haiku. * lisp/cus-start.el: Add haiku-debug-on-fatal-error and haiku-use-system-tooltips. * lisp/faces.el (face-valid-attribute-values): Clarify attribute comment for Haiku. (tool-bar): Add appropriate toolbar color for Haiku. * lisp/frame.el (haiku-frame-geometry) (haiku-mouse-absolute-pixel-position) (haiku-set-mouse-absolute-pixel-position) (haiku-frame-edges) (haiku-frame-list-z-order): New function declarations. (frame-geometry, frame-edges) (mouse-absolute-pixel-position) (set-mouse-absolute-pixel-position) (frame-list-z-order): Call appropriate window system functions on Haiku. (display-mouse-p, display-graphic-p) (display-images-p, display-pixel-height) (display-pixel-width, display-mm-height) (display-mm-width, display-backing-store) (display-save-under, display-planes) (display-color-cells, display-visual-class): Update type tests for Haiku. * lisp/international/mule-cmds.el (set-coding-system-map): Also prevent set-terminal-coding-system from appearing in the menu bar on Haiku. * lisp/loadup.el: Load Haiku-specific files when built with Haiku, and don't rename newly built Emacs on Haiku as BFS doesn't support hard links. * lisp/menu-bar.el (menu-bar-open): Add for Haiku. * lisp/mwheel.el (mouse-wheel-down-event): Expect wheel-up on Haiku. (mouse-wheel-up-event): Expect wheel-down on Haiku. (mouse-wheel-left-event): Expect wheel-left on Haiku. (mouse-wheel-right-event): Expect wheel-right on Haiku. * lisp/net/browse-url.el (browse-url--browser-defcustom-type): Add option for WebPositive. (browse-url-webpositive-program): New variable. (browse-url-default-program): Search for WebPositive. (browse-url-webpositive): New function. * lisp/net/eww.el (eww-form-submit, eww-form-file) (eww-form-checkbox, eww-form-select): Define faces appropriately for Haiku. * lisp/term/haiku-win.el: New file. * lisp/tooltip.el (menu-or-popup-active-p): New function declaration. (tooltip-show-help): Don't use tooltips on Haiku when a menu is active. * lisp/version.el (haiku-get-version-string): New function declaration. (emacs-version): Add Haiku version string if appropriate. * src/Makefile.in: Also produce binary named "Emacs" with Haiku resources set. (CXX, HAIKU_OBJ, HAIKU_CXX_OBJ, HAIKU_LIBS) (HAIKU_CFLAGS, HAVE_BE_APP, NON_CXX_FLAGS) (ALL_CXX_FLAGS): New variables. (.SUFFIXES): Add .cc. (.cc.o): New target. (base_obj): Add Haiku C objects. (doc_obj, obj): Split objects that should scanned for documentation into doc_obj. (SOME_MACHINE_OBJECTS): Add appropriate Haiku C objects. (all): Depend on Emacs and Emacs.pdmp on Haiku. (LIBES): Add Haiku libraries. (gl-stamp) ($(etc)/DOC): Scan doc_obj instead of obj (temacs$(EXEEXT): Use C++ linker on Haiku. (ctagsfiles3): New variable. (TAGS): Scan C++ files. * src/alloc.c (garbage_collect): Mark Haiku display. * src/dispextern.h (HAVE_NATIVE_TRANSFORMS): Also enable on Haiku. (struct image): Add fields for Haiku transforms. (RGB_PIXEL_COLOR): Define to unsigned long on Haiku as well. (sit_for): Also check USABLE_SIGPOLL. (init_display_interactive): Set initial window system to Haiku on Haiku builds. * src/emacs.c (main): Define Haiku syms and init haiku clipboard. (shut_down_emacs): Quit BApplication on Haiku and trigger debug on aborts if haiku_debug_on_fatal_error. (Vsystem_type): Update docstring. * src/fileio.c (next-read-file-uses-dialog-p): Enable on Haiku. * src/filelock.c (WTMP_FILE): Only define if BOOT_TIME is also defined. * src/floatfns.c (double_integer_scale): Work around Haiku libroot brain damage. * src/font.c (syms_of_font): Define appropriate font driver symbols for Haiku builds with various options. * src/font.h: Also enable ftcrfont on Haiku builds with Cairo. (font_data_structures_may_be_ill_formed): Also enable on Haiku builds that have Cairo. * src/frame.c (Fframep): Update doc-string for Haiku builds and return haiku if appropriate. (syms_of_frame): New symbol `haiku'. * src/frame.h (struct frame): Add output data for Haiku. (FRAME_HAIKU_P): New macro. (FRAME_WINDOW_P): Test for Haiku frames as well. * src/ftcrfont.c (RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG): New macros. (ftcrfont_draw): Add haiku specific code for Haiku builds with Cairo. * src/ftfont.c (ftfont_open): Set face. (ftfont_has_char, ftfont_text_extents): Work around crash. (syms_of_ftfont): New symbol `mono'. * src/ftfont.h (struct font_info): Enable Cairo-specific fields for Cairo builds on Haiku. * src/haiku_draw_support.cc: * src/haiku_font_support.cc: * src/haiku_io.c: * src/haiku_select.cc: * src/haiku_support.cc: * src/haiku_support.h: * src/haikufns.c: * src/haikufont.c: * src/haikugui.h: * src/haikuimage.c: * src/haikumenu.c: * src/haikuselect.c: * src/haikuselect.h: * src/haikuterm.c: * src/haikuterm.h: Add new files for Haiku windowing support. * src/haiku.c: Add new files for Haiku operating system support. * src/image.c: Implement image transforms and native XPM support on Haiku. (GET_PIXEL, PUT_PIXEL, NO_PIXMAP) (PIX_MASK_RETAIN, PIX_MASK_DRAW) (RGB_TO_ULONG, RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG, RED16_FROM_ULONG, GREEN16_FROM_ULONG) (BLUE16_FROM_ULONG): Define to appropriate values on Haiku. (image_create_bitmap_from_data): Add Haiku support. (image_create_bitmap_from_file): Add TODO on Haiku. (free_bitmap_record): Free bitmap on Haiku. (image_size_in_bytes): Implement for Haiku bitmaps. (image_set_transform): Implement on Haiku. (image_create_x_image_and_pixmap_1): Implement on Haiku, 24-bit or 1-bit only. (image_destroy_x_image, image_get_x_image): Use correct img and pixmap values on Haiku. (lookup_rgb_color): Use correct macro on Haiku. (image_to_emacs_colors): Implement on Haiku. (image_disable_image): Disable on Haiku. (image_can_use_native_api): Test for translator presence on Haiku. (native_image_load): Use translator on Haiku. (imagemagick_load_image): Add Haiku-specific quirks. (Fimage_transforms_p): Allow rotate90 on Haiku. (image_types): Enable native XPM support on Haiku. (syms_of_image): Enable XPM images on Haiku. * src/keyboard.c (kbd_buffer_get_event) (handle_async_input, handle_input_available_signal) (handle_user_signal, Fset_input_interrupt_mode) (init_keyboard): Check for USABLE_SIGPOLL along with USABLE_SIGIO. * src/lisp.h (pD): Work around broken Haiku headers. (HAVE_EXT_MENU_BAR): Define on Haiku. (handle_input_available_signal): Enable if we just have SIGPOLL as well. * src/menu.c (have_boxes): Return true on Haiku. (single_menu_item): Enable toolkit menus on Haiku. (find_and_call_menu_selection): Also enable on Haiku. * src/process.c (keyboard_bit_set): Enable with only usable SIGPOLL. (wait_reading_process_output): Test for SIGPOLL as well as SIGIO availability. * src/sound.c (sound_perror, vox_open) (vox_configure, vox_close): Enable for usable SIGPOLL as well. * src/sysdep.c (sys_subshell): Enable for usable SIGPOLL. (reset_sigio): Make conditional on F_SETOWN. (request_sigio, unrequest_sigio) (emacs_sigaction_init): Also handle SIGPOLLs. (init_sys_modes): Disable TCXONC usage on Haiku, as it doesn't have any ttys other than pseudo ttys, which don't support C-s/C-q flow control, and causes compiler warnings. (speeds): Disable high speeds if HAVE_TINY_SPEED_T. * src/termhooks.h (enum output_method): Add output_haiku. (struct terminal): Add Haiku display info. (TERMINAL_FONT_CACHE): Enable for Haiku. * src/terminal.c (Fterminal_live_p): Return `haiku' if appropriate. * src/verbose.mk.in (AM_V_CXX, AM_V_CXXLD): New logging variables. * src/xdisp.c (redisplay_internal) (note_mouse_highlight): Return on Haiku if a popup is activated. (display_menu_bar): Return on Haiku if frame is a Haiku frame. * src/xfaces.c (GCGraphicsExposures): Enable correctly on Haiku. (x_create_gc): Enable dummy GC code on Haiku. * src/xfns.c (x-server-version, x-file-dialog): Add Haiku specifics to doc strings. * src/xterm.c (syms_of_xterm): Add Haiku information to doc string.
2021-11-20 13:30:08 +00:00
; * etc/PROBLEMS: Describe MS-Windows issues with fonts. (Bug#54685)
2022-04-15 12:38:06 +00:00
This can happen if you select font variants such as "Light" or "Thin"
or "Semibold" or "Heavy", and some others. The APIs used by Emacs on
Windows to enumerate fonts in a font family consider only 4 font
variants to belong to the same family: Regular, Italic, Bold, and
Bold-Italic. All the other variants aren't returned by those APIs
when we request to list all the fonts in a family, and thus aren't
considered by Emacs to belong to the family. So any font variant that
is not one of those 4 will likely not work as expected; in most cases
Emacs will select some other font instead.
Add support for the Haiku operating system and its window system * .gitignore: Add binaries specific to Haiku. * Makefie.in (HAVE_BE_APP): New variable. (install-arch-dep): Install Emacs and Emacs.pdmp when using Haiku. * configure.ac: Detect and configure for Haiku and various related configurations. (be-app, be-freetype, be-cairo): New options. (HAVE_BE_APP, HAIKU_OBJ, HAIKU_CXX_OBJ) (HAIKU_LIBS, HAIKU_CFLAGS): New variables. (HAIKU, HAVE_TINY_SPEED_T): New define. (emacs_config_features): Add BE_APP. * doc/emacs/Makefile.in (EMACSSOURCES): Add Haiku appendix. * doc/emacs/emacs.texi: Add Haiku appendix to menus and include it. * doc/emacs/haiku.texi: New Haiku appendix. * doc/lispref/display.texi (Defining Faces, Window Systems): Explain meaning of `haiku' as a window system identifier. (haiku-use-system-tooltips): Explain meaning of system tooltips on Haiku. * doc/lispref/frames.texi (Multiple Terminals): Explain meaning of haiku as a display type. (Frame Layout): Clarify section for Haiku frames. (Size Parameters): Explain limitations of fullwidth and fullheight on Haiku. (Management Parameters): Explain limitations of inhibiting double buffering on builds with Cairo, and the inability of frames with no-accept-focus to receive keyboard input on Haiku. (Font and Color Parameters): Explain the different font backends available on Haiku. (Raising and Lowering): Explain that lowering and restacking frames doesn't work on Haiku. (Child Frames): Explain oddities of child frame visibility on Haiku. * doc/lispref/os.texi (System Environment): Explain meaning of haiku. * etc/MACHINES: Add appropriate notices for Haiku. * etc/NEWS: Document changes. * etc/PROBLEMS: Document font spacing bug on Haiku. * lib-src/Makefile.in: Build be-resources binary on Haiku. (CXX, CXXFLAGS, NON_CXX_FLAGS, ALL_CXXFLAGS) (HAVE_BE_APP, HAIKU_LIBS, HAIKU_CFLAGS): New variables. (DONT_INSTALL): Add be-resources binary if on Haiku. (be-resources): New target. * lib-src/be_resources: Add helper binary for setting resources on the Emacs application. * lib-src/emacsclient.c (decode_options): Set alt_display to "be" on Haiku. * lisp/cus-edit.el (custom-button, custom-button-mouse) (custom-button-unraised, custom-button-pressed): Update face definitions for Haiku. * lisp/cus-start.el: Add haiku-debug-on-fatal-error and haiku-use-system-tooltips. * lisp/faces.el (face-valid-attribute-values): Clarify attribute comment for Haiku. (tool-bar): Add appropriate toolbar color for Haiku. * lisp/frame.el (haiku-frame-geometry) (haiku-mouse-absolute-pixel-position) (haiku-set-mouse-absolute-pixel-position) (haiku-frame-edges) (haiku-frame-list-z-order): New function declarations. (frame-geometry, frame-edges) (mouse-absolute-pixel-position) (set-mouse-absolute-pixel-position) (frame-list-z-order): Call appropriate window system functions on Haiku. (display-mouse-p, display-graphic-p) (display-images-p, display-pixel-height) (display-pixel-width, display-mm-height) (display-mm-width, display-backing-store) (display-save-under, display-planes) (display-color-cells, display-visual-class): Update type tests for Haiku. * lisp/international/mule-cmds.el (set-coding-system-map): Also prevent set-terminal-coding-system from appearing in the menu bar on Haiku. * lisp/loadup.el: Load Haiku-specific files when built with Haiku, and don't rename newly built Emacs on Haiku as BFS doesn't support hard links. * lisp/menu-bar.el (menu-bar-open): Add for Haiku. * lisp/mwheel.el (mouse-wheel-down-event): Expect wheel-up on Haiku. (mouse-wheel-up-event): Expect wheel-down on Haiku. (mouse-wheel-left-event): Expect wheel-left on Haiku. (mouse-wheel-right-event): Expect wheel-right on Haiku. * lisp/net/browse-url.el (browse-url--browser-defcustom-type): Add option for WebPositive. (browse-url-webpositive-program): New variable. (browse-url-default-program): Search for WebPositive. (browse-url-webpositive): New function. * lisp/net/eww.el (eww-form-submit, eww-form-file) (eww-form-checkbox, eww-form-select): Define faces appropriately for Haiku. * lisp/term/haiku-win.el: New file. * lisp/tooltip.el (menu-or-popup-active-p): New function declaration. (tooltip-show-help): Don't use tooltips on Haiku when a menu is active. * lisp/version.el (haiku-get-version-string): New function declaration. (emacs-version): Add Haiku version string if appropriate. * src/Makefile.in: Also produce binary named "Emacs" with Haiku resources set. (CXX, HAIKU_OBJ, HAIKU_CXX_OBJ, HAIKU_LIBS) (HAIKU_CFLAGS, HAVE_BE_APP, NON_CXX_FLAGS) (ALL_CXX_FLAGS): New variables. (.SUFFIXES): Add .cc. (.cc.o): New target. (base_obj): Add Haiku C objects. (doc_obj, obj): Split objects that should scanned for documentation into doc_obj. (SOME_MACHINE_OBJECTS): Add appropriate Haiku C objects. (all): Depend on Emacs and Emacs.pdmp on Haiku. (LIBES): Add Haiku libraries. (gl-stamp) ($(etc)/DOC): Scan doc_obj instead of obj (temacs$(EXEEXT): Use C++ linker on Haiku. (ctagsfiles3): New variable. (TAGS): Scan C++ files. * src/alloc.c (garbage_collect): Mark Haiku display. * src/dispextern.h (HAVE_NATIVE_TRANSFORMS): Also enable on Haiku. (struct image): Add fields for Haiku transforms. (RGB_PIXEL_COLOR): Define to unsigned long on Haiku as well. (sit_for): Also check USABLE_SIGPOLL. (init_display_interactive): Set initial window system to Haiku on Haiku builds. * src/emacs.c (main): Define Haiku syms and init haiku clipboard. (shut_down_emacs): Quit BApplication on Haiku and trigger debug on aborts if haiku_debug_on_fatal_error. (Vsystem_type): Update docstring. * src/fileio.c (next-read-file-uses-dialog-p): Enable on Haiku. * src/filelock.c (WTMP_FILE): Only define if BOOT_TIME is also defined. * src/floatfns.c (double_integer_scale): Work around Haiku libroot brain damage. * src/font.c (syms_of_font): Define appropriate font driver symbols for Haiku builds with various options. * src/font.h: Also enable ftcrfont on Haiku builds with Cairo. (font_data_structures_may_be_ill_formed): Also enable on Haiku builds that have Cairo. * src/frame.c (Fframep): Update doc-string for Haiku builds and return haiku if appropriate. (syms_of_frame): New symbol `haiku'. * src/frame.h (struct frame): Add output data for Haiku. (FRAME_HAIKU_P): New macro. (FRAME_WINDOW_P): Test for Haiku frames as well. * src/ftcrfont.c (RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG): New macros. (ftcrfont_draw): Add haiku specific code for Haiku builds with Cairo. * src/ftfont.c (ftfont_open): Set face. (ftfont_has_char, ftfont_text_extents): Work around crash. (syms_of_ftfont): New symbol `mono'. * src/ftfont.h (struct font_info): Enable Cairo-specific fields for Cairo builds on Haiku. * src/haiku_draw_support.cc: * src/haiku_font_support.cc: * src/haiku_io.c: * src/haiku_select.cc: * src/haiku_support.cc: * src/haiku_support.h: * src/haikufns.c: * src/haikufont.c: * src/haikugui.h: * src/haikuimage.c: * src/haikumenu.c: * src/haikuselect.c: * src/haikuselect.h: * src/haikuterm.c: * src/haikuterm.h: Add new files for Haiku windowing support. * src/haiku.c: Add new files for Haiku operating system support. * src/image.c: Implement image transforms and native XPM support on Haiku. (GET_PIXEL, PUT_PIXEL, NO_PIXMAP) (PIX_MASK_RETAIN, PIX_MASK_DRAW) (RGB_TO_ULONG, RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG, RED16_FROM_ULONG, GREEN16_FROM_ULONG) (BLUE16_FROM_ULONG): Define to appropriate values on Haiku. (image_create_bitmap_from_data): Add Haiku support. (image_create_bitmap_from_file): Add TODO on Haiku. (free_bitmap_record): Free bitmap on Haiku. (image_size_in_bytes): Implement for Haiku bitmaps. (image_set_transform): Implement on Haiku. (image_create_x_image_and_pixmap_1): Implement on Haiku, 24-bit or 1-bit only. (image_destroy_x_image, image_get_x_image): Use correct img and pixmap values on Haiku. (lookup_rgb_color): Use correct macro on Haiku. (image_to_emacs_colors): Implement on Haiku. (image_disable_image): Disable on Haiku. (image_can_use_native_api): Test for translator presence on Haiku. (native_image_load): Use translator on Haiku. (imagemagick_load_image): Add Haiku-specific quirks. (Fimage_transforms_p): Allow rotate90 on Haiku. (image_types): Enable native XPM support on Haiku. (syms_of_image): Enable XPM images on Haiku. * src/keyboard.c (kbd_buffer_get_event) (handle_async_input, handle_input_available_signal) (handle_user_signal, Fset_input_interrupt_mode) (init_keyboard): Check for USABLE_SIGPOLL along with USABLE_SIGIO. * src/lisp.h (pD): Work around broken Haiku headers. (HAVE_EXT_MENU_BAR): Define on Haiku. (handle_input_available_signal): Enable if we just have SIGPOLL as well. * src/menu.c (have_boxes): Return true on Haiku. (single_menu_item): Enable toolkit menus on Haiku. (find_and_call_menu_selection): Also enable on Haiku. * src/process.c (keyboard_bit_set): Enable with only usable SIGPOLL. (wait_reading_process_output): Test for SIGPOLL as well as SIGIO availability. * src/sound.c (sound_perror, vox_open) (vox_configure, vox_close): Enable for usable SIGPOLL as well. * src/sysdep.c (sys_subshell): Enable for usable SIGPOLL. (reset_sigio): Make conditional on F_SETOWN. (request_sigio, unrequest_sigio) (emacs_sigaction_init): Also handle SIGPOLLs. (init_sys_modes): Disable TCXONC usage on Haiku, as it doesn't have any ttys other than pseudo ttys, which don't support C-s/C-q flow control, and causes compiler warnings. (speeds): Disable high speeds if HAVE_TINY_SPEED_T. * src/termhooks.h (enum output_method): Add output_haiku. (struct terminal): Add Haiku display info. (TERMINAL_FONT_CACHE): Enable for Haiku. * src/terminal.c (Fterminal_live_p): Return `haiku' if appropriate. * src/verbose.mk.in (AM_V_CXX, AM_V_CXXLD): New logging variables. * src/xdisp.c (redisplay_internal) (note_mouse_highlight): Return on Haiku if a popup is activated. (display_menu_bar): Return on Haiku if frame is a Haiku frame. * src/xfaces.c (GCGraphicsExposures): Enable correctly on Haiku. (x_create_gc): Enable dummy GC code on Haiku. * src/xfns.c (x-server-version, x-file-dialog): Add Haiku specifics to doc strings. * src/xterm.c (syms_of_xterm): Add Haiku information to doc string.
2021-11-20 13:30:08 +00:00
; * etc/PROBLEMS: Describe MS-Windows issues with fonts. (Bug#54685)
2022-04-15 12:38:06 +00:00
The only workaround is not to choose such font variants as the default
font when running Emacs on MS-Windows.
Add support for the Haiku operating system and its window system * .gitignore: Add binaries specific to Haiku. * Makefie.in (HAVE_BE_APP): New variable. (install-arch-dep): Install Emacs and Emacs.pdmp when using Haiku. * configure.ac: Detect and configure for Haiku and various related configurations. (be-app, be-freetype, be-cairo): New options. (HAVE_BE_APP, HAIKU_OBJ, HAIKU_CXX_OBJ) (HAIKU_LIBS, HAIKU_CFLAGS): New variables. (HAIKU, HAVE_TINY_SPEED_T): New define. (emacs_config_features): Add BE_APP. * doc/emacs/Makefile.in (EMACSSOURCES): Add Haiku appendix. * doc/emacs/emacs.texi: Add Haiku appendix to menus and include it. * doc/emacs/haiku.texi: New Haiku appendix. * doc/lispref/display.texi (Defining Faces, Window Systems): Explain meaning of `haiku' as a window system identifier. (haiku-use-system-tooltips): Explain meaning of system tooltips on Haiku. * doc/lispref/frames.texi (Multiple Terminals): Explain meaning of haiku as a display type. (Frame Layout): Clarify section for Haiku frames. (Size Parameters): Explain limitations of fullwidth and fullheight on Haiku. (Management Parameters): Explain limitations of inhibiting double buffering on builds with Cairo, and the inability of frames with no-accept-focus to receive keyboard input on Haiku. (Font and Color Parameters): Explain the different font backends available on Haiku. (Raising and Lowering): Explain that lowering and restacking frames doesn't work on Haiku. (Child Frames): Explain oddities of child frame visibility on Haiku. * doc/lispref/os.texi (System Environment): Explain meaning of haiku. * etc/MACHINES: Add appropriate notices for Haiku. * etc/NEWS: Document changes. * etc/PROBLEMS: Document font spacing bug on Haiku. * lib-src/Makefile.in: Build be-resources binary on Haiku. (CXX, CXXFLAGS, NON_CXX_FLAGS, ALL_CXXFLAGS) (HAVE_BE_APP, HAIKU_LIBS, HAIKU_CFLAGS): New variables. (DONT_INSTALL): Add be-resources binary if on Haiku. (be-resources): New target. * lib-src/be_resources: Add helper binary for setting resources on the Emacs application. * lib-src/emacsclient.c (decode_options): Set alt_display to "be" on Haiku. * lisp/cus-edit.el (custom-button, custom-button-mouse) (custom-button-unraised, custom-button-pressed): Update face definitions for Haiku. * lisp/cus-start.el: Add haiku-debug-on-fatal-error and haiku-use-system-tooltips. * lisp/faces.el (face-valid-attribute-values): Clarify attribute comment for Haiku. (tool-bar): Add appropriate toolbar color for Haiku. * lisp/frame.el (haiku-frame-geometry) (haiku-mouse-absolute-pixel-position) (haiku-set-mouse-absolute-pixel-position) (haiku-frame-edges) (haiku-frame-list-z-order): New function declarations. (frame-geometry, frame-edges) (mouse-absolute-pixel-position) (set-mouse-absolute-pixel-position) (frame-list-z-order): Call appropriate window system functions on Haiku. (display-mouse-p, display-graphic-p) (display-images-p, display-pixel-height) (display-pixel-width, display-mm-height) (display-mm-width, display-backing-store) (display-save-under, display-planes) (display-color-cells, display-visual-class): Update type tests for Haiku. * lisp/international/mule-cmds.el (set-coding-system-map): Also prevent set-terminal-coding-system from appearing in the menu bar on Haiku. * lisp/loadup.el: Load Haiku-specific files when built with Haiku, and don't rename newly built Emacs on Haiku as BFS doesn't support hard links. * lisp/menu-bar.el (menu-bar-open): Add for Haiku. * lisp/mwheel.el (mouse-wheel-down-event): Expect wheel-up on Haiku. (mouse-wheel-up-event): Expect wheel-down on Haiku. (mouse-wheel-left-event): Expect wheel-left on Haiku. (mouse-wheel-right-event): Expect wheel-right on Haiku. * lisp/net/browse-url.el (browse-url--browser-defcustom-type): Add option for WebPositive. (browse-url-webpositive-program): New variable. (browse-url-default-program): Search for WebPositive. (browse-url-webpositive): New function. * lisp/net/eww.el (eww-form-submit, eww-form-file) (eww-form-checkbox, eww-form-select): Define faces appropriately for Haiku. * lisp/term/haiku-win.el: New file. * lisp/tooltip.el (menu-or-popup-active-p): New function declaration. (tooltip-show-help): Don't use tooltips on Haiku when a menu is active. * lisp/version.el (haiku-get-version-string): New function declaration. (emacs-version): Add Haiku version string if appropriate. * src/Makefile.in: Also produce binary named "Emacs" with Haiku resources set. (CXX, HAIKU_OBJ, HAIKU_CXX_OBJ, HAIKU_LIBS) (HAIKU_CFLAGS, HAVE_BE_APP, NON_CXX_FLAGS) (ALL_CXX_FLAGS): New variables. (.SUFFIXES): Add .cc. (.cc.o): New target. (base_obj): Add Haiku C objects. (doc_obj, obj): Split objects that should scanned for documentation into doc_obj. (SOME_MACHINE_OBJECTS): Add appropriate Haiku C objects. (all): Depend on Emacs and Emacs.pdmp on Haiku. (LIBES): Add Haiku libraries. (gl-stamp) ($(etc)/DOC): Scan doc_obj instead of obj (temacs$(EXEEXT): Use C++ linker on Haiku. (ctagsfiles3): New variable. (TAGS): Scan C++ files. * src/alloc.c (garbage_collect): Mark Haiku display. * src/dispextern.h (HAVE_NATIVE_TRANSFORMS): Also enable on Haiku. (struct image): Add fields for Haiku transforms. (RGB_PIXEL_COLOR): Define to unsigned long on Haiku as well. (sit_for): Also check USABLE_SIGPOLL. (init_display_interactive): Set initial window system to Haiku on Haiku builds. * src/emacs.c (main): Define Haiku syms and init haiku clipboard. (shut_down_emacs): Quit BApplication on Haiku and trigger debug on aborts if haiku_debug_on_fatal_error. (Vsystem_type): Update docstring. * src/fileio.c (next-read-file-uses-dialog-p): Enable on Haiku. * src/filelock.c (WTMP_FILE): Only define if BOOT_TIME is also defined. * src/floatfns.c (double_integer_scale): Work around Haiku libroot brain damage. * src/font.c (syms_of_font): Define appropriate font driver symbols for Haiku builds with various options. * src/font.h: Also enable ftcrfont on Haiku builds with Cairo. (font_data_structures_may_be_ill_formed): Also enable on Haiku builds that have Cairo. * src/frame.c (Fframep): Update doc-string for Haiku builds and return haiku if appropriate. (syms_of_frame): New symbol `haiku'. * src/frame.h (struct frame): Add output data for Haiku. (FRAME_HAIKU_P): New macro. (FRAME_WINDOW_P): Test for Haiku frames as well. * src/ftcrfont.c (RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG): New macros. (ftcrfont_draw): Add haiku specific code for Haiku builds with Cairo. * src/ftfont.c (ftfont_open): Set face. (ftfont_has_char, ftfont_text_extents): Work around crash. (syms_of_ftfont): New symbol `mono'. * src/ftfont.h (struct font_info): Enable Cairo-specific fields for Cairo builds on Haiku. * src/haiku_draw_support.cc: * src/haiku_font_support.cc: * src/haiku_io.c: * src/haiku_select.cc: * src/haiku_support.cc: * src/haiku_support.h: * src/haikufns.c: * src/haikufont.c: * src/haikugui.h: * src/haikuimage.c: * src/haikumenu.c: * src/haikuselect.c: * src/haikuselect.h: * src/haikuterm.c: * src/haikuterm.h: Add new files for Haiku windowing support. * src/haiku.c: Add new files for Haiku operating system support. * src/image.c: Implement image transforms and native XPM support on Haiku. (GET_PIXEL, PUT_PIXEL, NO_PIXMAP) (PIX_MASK_RETAIN, PIX_MASK_DRAW) (RGB_TO_ULONG, RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG, RED16_FROM_ULONG, GREEN16_FROM_ULONG) (BLUE16_FROM_ULONG): Define to appropriate values on Haiku. (image_create_bitmap_from_data): Add Haiku support. (image_create_bitmap_from_file): Add TODO on Haiku. (free_bitmap_record): Free bitmap on Haiku. (image_size_in_bytes): Implement for Haiku bitmaps. (image_set_transform): Implement on Haiku. (image_create_x_image_and_pixmap_1): Implement on Haiku, 24-bit or 1-bit only. (image_destroy_x_image, image_get_x_image): Use correct img and pixmap values on Haiku. (lookup_rgb_color): Use correct macro on Haiku. (image_to_emacs_colors): Implement on Haiku. (image_disable_image): Disable on Haiku. (image_can_use_native_api): Test for translator presence on Haiku. (native_image_load): Use translator on Haiku. (imagemagick_load_image): Add Haiku-specific quirks. (Fimage_transforms_p): Allow rotate90 on Haiku. (image_types): Enable native XPM support on Haiku. (syms_of_image): Enable XPM images on Haiku. * src/keyboard.c (kbd_buffer_get_event) (handle_async_input, handle_input_available_signal) (handle_user_signal, Fset_input_interrupt_mode) (init_keyboard): Check for USABLE_SIGPOLL along with USABLE_SIGIO. * src/lisp.h (pD): Work around broken Haiku headers. (HAVE_EXT_MENU_BAR): Define on Haiku. (handle_input_available_signal): Enable if we just have SIGPOLL as well. * src/menu.c (have_boxes): Return true on Haiku. (single_menu_item): Enable toolkit menus on Haiku. (find_and_call_menu_selection): Also enable on Haiku. * src/process.c (keyboard_bit_set): Enable with only usable SIGPOLL. (wait_reading_process_output): Test for SIGPOLL as well as SIGIO availability. * src/sound.c (sound_perror, vox_open) (vox_configure, vox_close): Enable for usable SIGPOLL as well. * src/sysdep.c (sys_subshell): Enable for usable SIGPOLL. (reset_sigio): Make conditional on F_SETOWN. (request_sigio, unrequest_sigio) (emacs_sigaction_init): Also handle SIGPOLLs. (init_sys_modes): Disable TCXONC usage on Haiku, as it doesn't have any ttys other than pseudo ttys, which don't support C-s/C-q flow control, and causes compiler warnings. (speeds): Disable high speeds if HAVE_TINY_SPEED_T. * src/termhooks.h (enum output_method): Add output_haiku. (struct terminal): Add Haiku display info. (TERMINAL_FONT_CACHE): Enable for Haiku. * src/terminal.c (Fterminal_live_p): Return `haiku' if appropriate. * src/verbose.mk.in (AM_V_CXX, AM_V_CXXLD): New logging variables. * src/xdisp.c (redisplay_internal) (note_mouse_highlight): Return on Haiku if a popup is activated. (display_menu_bar): Return on Haiku if frame is a Haiku frame. * src/xfaces.c (GCGraphicsExposures): Enable correctly on Haiku. (x_create_gc): Enable dummy GC code on Haiku. * src/xfns.c (x-server-version, x-file-dialog): Add Haiku specifics to doc strings. * src/xterm.c (syms_of_xterm): Add Haiku information to doc string.
2021-11-20 13:30:08 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Internationalization problems
More information about how to find the Meta keys.
2001-07-26 15:43:08 +00:00
*** empty log message ***
2006-09-28 19:10:27 +00:00
** M-{ does not work on a Spanish PC keyboard.
Many Spanish keyboards seem to ignore that combination. Emacs can't
do anything about it.
* PROBLEMS: Document Athena/Lucid internationalization problem (Bug#4333).
2009-09-13 20:46:46 +00:00
** International characters aren't displayed under X.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Accented ISO-8859-1 characters are displayed as | or _.
#
1999-10-03 12:39:42 +00:00
Document problems with ISO-8859 fonts which actually include only ASCII glyphs.
2000-12-19 17:21:55 +00:00
Try other font set sizes (S-mouse-1). If the problem persists with
other sizes as well, your text is corrupted, probably through software
that is not 8-bit clean. If the problem goes away with another font
size, it's probably because some fonts pretend to be ISO-8859-1 fonts
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
when they are really ASCII fonts. In particular the schumacher-clean
Document problems with ISO-8859 fonts which actually include only ASCII glyphs.
2000-12-19 17:21:55 +00:00
fonts have this bug in some versions of X.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
To see what glyphs are included in a font, use 'xfd', like this:
#
1999-10-03 12:39:42 +00:00
Document problems with ISO-8859 fonts which actually include only ASCII glyphs.
2000-12-19 17:21:55 +00:00
xfd -fn -schumacher-clean-medium-r-normal--12-120-75-75-c-60-iso8859-1
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
If this shows only ASCII glyphs, the font is indeed the source of the problem.
#
1999-10-03 12:39:42 +00:00
Document problems with ISO-8859 fonts which actually include only ASCII glyphs.
2000-12-19 17:21:55 +00:00
The solution is to remove the corresponding lines from the appropriate
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'fonts.alias' file, then run 'mkfontdir' in that directory, and then run
'xset fp rehash'.
Trailing whitespace deleted.
2003-02-04 14:56:31 +00:00
Document problem with fcitx and xwidgets * etc/PROBLEMS (Internationalization problems): Document buggy fcitx with xwidgets.
2021-11-12 12:15:50 +00:00
** fcitx input methods don't work with xwidgets.
fcitx-based input methods might not work when xwidgets are displayed,
such as inside an xwidget-webkit buffer. This manifests as the pre-edit
window of the input method disappearing, and the Emacs frame losing
input focus as soon as you try to type anything. You can work around
this problem by switching to IBus, or by using a native Emacs input
method and disabling XIM altogether. For example, you can add the
following line:
Fix typos in etc/PROBLEMS * etc/PROBLEMS (Internationalization problems): Fix typos.
2021-11-12 12:17:28 +00:00
Emacs.useXIM: false
Document problem with fcitx and xwidgets * etc/PROBLEMS (Internationalization problems): Document buggy fcitx with xwidgets.
2021-11-12 12:15:50 +00:00
In your ~/.Xresources file, then run
Fix typos in etc/PROBLEMS * etc/PROBLEMS (Internationalization problems): Fix typos.
2021-11-12 12:17:28 +00:00
$ xrdb ~/.Xresources
Document problem with fcitx and xwidgets * etc/PROBLEMS (Internationalization problems): Document buggy fcitx with xwidgets.
2021-11-12 12:15:50 +00:00
And restart Emacs.
; * etc/PROBLEMS: Add entry about XIM problems (bug#65205).
2023-08-12 07:04:55 +00:00
** Emacs hangs when using XIM
This is due to an old bug in the implementation of the X protocol's
XIM transport: when an input method crashes for some reason, Xlib
cannot recover. Emacs cannot do anything about this except wait for
; * etc/PROBLEMS: Fix typo and clarify wording. I-Bus is merely one of the many X input methods plagued with crashes.
2023-08-14 08:04:03 +00:00
input method developers to fix their crashes. You can work around
these problems by disabling XIM in your X resources:
; * etc/PROBLEMS: Add entry about XIM problems (bug#65205).
2023-08-12 07:04:55 +00:00
Emacs.useXIM: false
Add support for the Haiku operating system and its window system * .gitignore: Add binaries specific to Haiku. * Makefie.in (HAVE_BE_APP): New variable. (install-arch-dep): Install Emacs and Emacs.pdmp when using Haiku. * configure.ac: Detect and configure for Haiku and various related configurations. (be-app, be-freetype, be-cairo): New options. (HAVE_BE_APP, HAIKU_OBJ, HAIKU_CXX_OBJ) (HAIKU_LIBS, HAIKU_CFLAGS): New variables. (HAIKU, HAVE_TINY_SPEED_T): New define. (emacs_config_features): Add BE_APP. * doc/emacs/Makefile.in (EMACSSOURCES): Add Haiku appendix. * doc/emacs/emacs.texi: Add Haiku appendix to menus and include it. * doc/emacs/haiku.texi: New Haiku appendix. * doc/lispref/display.texi (Defining Faces, Window Systems): Explain meaning of `haiku' as a window system identifier. (haiku-use-system-tooltips): Explain meaning of system tooltips on Haiku. * doc/lispref/frames.texi (Multiple Terminals): Explain meaning of haiku as a display type. (Frame Layout): Clarify section for Haiku frames. (Size Parameters): Explain limitations of fullwidth and fullheight on Haiku. (Management Parameters): Explain limitations of inhibiting double buffering on builds with Cairo, and the inability of frames with no-accept-focus to receive keyboard input on Haiku. (Font and Color Parameters): Explain the different font backends available on Haiku. (Raising and Lowering): Explain that lowering and restacking frames doesn't work on Haiku. (Child Frames): Explain oddities of child frame visibility on Haiku. * doc/lispref/os.texi (System Environment): Explain meaning of haiku. * etc/MACHINES: Add appropriate notices for Haiku. * etc/NEWS: Document changes. * etc/PROBLEMS: Document font spacing bug on Haiku. * lib-src/Makefile.in: Build be-resources binary on Haiku. (CXX, CXXFLAGS, NON_CXX_FLAGS, ALL_CXXFLAGS) (HAVE_BE_APP, HAIKU_LIBS, HAIKU_CFLAGS): New variables. (DONT_INSTALL): Add be-resources binary if on Haiku. (be-resources): New target. * lib-src/be_resources: Add helper binary for setting resources on the Emacs application. * lib-src/emacsclient.c (decode_options): Set alt_display to "be" on Haiku. * lisp/cus-edit.el (custom-button, custom-button-mouse) (custom-button-unraised, custom-button-pressed): Update face definitions for Haiku. * lisp/cus-start.el: Add haiku-debug-on-fatal-error and haiku-use-system-tooltips. * lisp/faces.el (face-valid-attribute-values): Clarify attribute comment for Haiku. (tool-bar): Add appropriate toolbar color for Haiku. * lisp/frame.el (haiku-frame-geometry) (haiku-mouse-absolute-pixel-position) (haiku-set-mouse-absolute-pixel-position) (haiku-frame-edges) (haiku-frame-list-z-order): New function declarations. (frame-geometry, frame-edges) (mouse-absolute-pixel-position) (set-mouse-absolute-pixel-position) (frame-list-z-order): Call appropriate window system functions on Haiku. (display-mouse-p, display-graphic-p) (display-images-p, display-pixel-height) (display-pixel-width, display-mm-height) (display-mm-width, display-backing-store) (display-save-under, display-planes) (display-color-cells, display-visual-class): Update type tests for Haiku. * lisp/international/mule-cmds.el (set-coding-system-map): Also prevent set-terminal-coding-system from appearing in the menu bar on Haiku. * lisp/loadup.el: Load Haiku-specific files when built with Haiku, and don't rename newly built Emacs on Haiku as BFS doesn't support hard links. * lisp/menu-bar.el (menu-bar-open): Add for Haiku. * lisp/mwheel.el (mouse-wheel-down-event): Expect wheel-up on Haiku. (mouse-wheel-up-event): Expect wheel-down on Haiku. (mouse-wheel-left-event): Expect wheel-left on Haiku. (mouse-wheel-right-event): Expect wheel-right on Haiku. * lisp/net/browse-url.el (browse-url--browser-defcustom-type): Add option for WebPositive. (browse-url-webpositive-program): New variable. (browse-url-default-program): Search for WebPositive. (browse-url-webpositive): New function. * lisp/net/eww.el (eww-form-submit, eww-form-file) (eww-form-checkbox, eww-form-select): Define faces appropriately for Haiku. * lisp/term/haiku-win.el: New file. * lisp/tooltip.el (menu-or-popup-active-p): New function declaration. (tooltip-show-help): Don't use tooltips on Haiku when a menu is active. * lisp/version.el (haiku-get-version-string): New function declaration. (emacs-version): Add Haiku version string if appropriate. * src/Makefile.in: Also produce binary named "Emacs" with Haiku resources set. (CXX, HAIKU_OBJ, HAIKU_CXX_OBJ, HAIKU_LIBS) (HAIKU_CFLAGS, HAVE_BE_APP, NON_CXX_FLAGS) (ALL_CXX_FLAGS): New variables. (.SUFFIXES): Add .cc. (.cc.o): New target. (base_obj): Add Haiku C objects. (doc_obj, obj): Split objects that should scanned for documentation into doc_obj. (SOME_MACHINE_OBJECTS): Add appropriate Haiku C objects. (all): Depend on Emacs and Emacs.pdmp on Haiku. (LIBES): Add Haiku libraries. (gl-stamp) ($(etc)/DOC): Scan doc_obj instead of obj (temacs$(EXEEXT): Use C++ linker on Haiku. (ctagsfiles3): New variable. (TAGS): Scan C++ files. * src/alloc.c (garbage_collect): Mark Haiku display. * src/dispextern.h (HAVE_NATIVE_TRANSFORMS): Also enable on Haiku. (struct image): Add fields for Haiku transforms. (RGB_PIXEL_COLOR): Define to unsigned long on Haiku as well. (sit_for): Also check USABLE_SIGPOLL. (init_display_interactive): Set initial window system to Haiku on Haiku builds. * src/emacs.c (main): Define Haiku syms and init haiku clipboard. (shut_down_emacs): Quit BApplication on Haiku and trigger debug on aborts if haiku_debug_on_fatal_error. (Vsystem_type): Update docstring. * src/fileio.c (next-read-file-uses-dialog-p): Enable on Haiku. * src/filelock.c (WTMP_FILE): Only define if BOOT_TIME is also defined. * src/floatfns.c (double_integer_scale): Work around Haiku libroot brain damage. * src/font.c (syms_of_font): Define appropriate font driver symbols for Haiku builds with various options. * src/font.h: Also enable ftcrfont on Haiku builds with Cairo. (font_data_structures_may_be_ill_formed): Also enable on Haiku builds that have Cairo. * src/frame.c (Fframep): Update doc-string for Haiku builds and return haiku if appropriate. (syms_of_frame): New symbol `haiku'. * src/frame.h (struct frame): Add output data for Haiku. (FRAME_HAIKU_P): New macro. (FRAME_WINDOW_P): Test for Haiku frames as well. * src/ftcrfont.c (RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG): New macros. (ftcrfont_draw): Add haiku specific code for Haiku builds with Cairo. * src/ftfont.c (ftfont_open): Set face. (ftfont_has_char, ftfont_text_extents): Work around crash. (syms_of_ftfont): New symbol `mono'. * src/ftfont.h (struct font_info): Enable Cairo-specific fields for Cairo builds on Haiku. * src/haiku_draw_support.cc: * src/haiku_font_support.cc: * src/haiku_io.c: * src/haiku_select.cc: * src/haiku_support.cc: * src/haiku_support.h: * src/haikufns.c: * src/haikufont.c: * src/haikugui.h: * src/haikuimage.c: * src/haikumenu.c: * src/haikuselect.c: * src/haikuselect.h: * src/haikuterm.c: * src/haikuterm.h: Add new files for Haiku windowing support. * src/haiku.c: Add new files for Haiku operating system support. * src/image.c: Implement image transforms and native XPM support on Haiku. (GET_PIXEL, PUT_PIXEL, NO_PIXMAP) (PIX_MASK_RETAIN, PIX_MASK_DRAW) (RGB_TO_ULONG, RED_FROM_ULONG, GREEN_FROM_ULONG) (BLUE_FROM_ULONG, RED16_FROM_ULONG, GREEN16_FROM_ULONG) (BLUE16_FROM_ULONG): Define to appropriate values on Haiku. (image_create_bitmap_from_data): Add Haiku support. (image_create_bitmap_from_file): Add TODO on Haiku. (free_bitmap_record): Free bitmap on Haiku. (image_size_in_bytes): Implement for Haiku bitmaps. (image_set_transform): Implement on Haiku. (image_create_x_image_and_pixmap_1): Implement on Haiku, 24-bit or 1-bit only. (image_destroy_x_image, image_get_x_image): Use correct img and pixmap values on Haiku. (lookup_rgb_color): Use correct macro on Haiku. (image_to_emacs_colors): Implement on Haiku. (image_disable_image): Disable on Haiku. (image_can_use_native_api): Test for translator presence on Haiku. (native_image_load): Use translator on Haiku. (imagemagick_load_image): Add Haiku-specific quirks. (Fimage_transforms_p): Allow rotate90 on Haiku. (image_types): Enable native XPM support on Haiku. (syms_of_image): Enable XPM images on Haiku. * src/keyboard.c (kbd_buffer_get_event) (handle_async_input, handle_input_available_signal) (handle_user_signal, Fset_input_interrupt_mode) (init_keyboard): Check for USABLE_SIGPOLL along with USABLE_SIGIO. * src/lisp.h (pD): Work around broken Haiku headers. (HAVE_EXT_MENU_BAR): Define on Haiku. (handle_input_available_signal): Enable if we just have SIGPOLL as well. * src/menu.c (have_boxes): Return true on Haiku. (single_menu_item): Enable toolkit menus on Haiku. (find_and_call_menu_selection): Also enable on Haiku. * src/process.c (keyboard_bit_set): Enable with only usable SIGPOLL. (wait_reading_process_output): Test for SIGPOLL as well as SIGIO availability. * src/sound.c (sound_perror, vox_open) (vox_configure, vox_close): Enable for usable SIGPOLL as well. * src/sysdep.c (sys_subshell): Enable for usable SIGPOLL. (reset_sigio): Make conditional on F_SETOWN. (request_sigio, unrequest_sigio) (emacs_sigaction_init): Also handle SIGPOLLs. (init_sys_modes): Disable TCXONC usage on Haiku, as it doesn't have any ttys other than pseudo ttys, which don't support C-s/C-q flow control, and causes compiler warnings. (speeds): Disable high speeds if HAVE_TINY_SPEED_T. * src/termhooks.h (enum output_method): Add output_haiku. (struct terminal): Add Haiku display info. (TERMINAL_FONT_CACHE): Enable for Haiku. * src/terminal.c (Fterminal_live_p): Return `haiku' if appropriate. * src/verbose.mk.in (AM_V_CXX, AM_V_CXXLD): New logging variables. * src/xdisp.c (redisplay_internal) (note_mouse_highlight): Return on Haiku if a popup is activated. (display_menu_bar): Return on Haiku if frame is a Haiku frame. * src/xfaces.c (GCGraphicsExposures): Enable correctly on Haiku. (x_create_gc): Enable dummy GC code on Haiku. * src/xfns.c (x-server-version, x-file-dialog): Add Haiku specifics to doc strings. * src/xterm.c (syms_of_xterm): Add Haiku information to doc string.
2021-11-20 13:30:08 +00:00
** On Haiku, BeCJK doesn't work properly with Emacs
Some popular Haiku input methods such BeCJK are known to behave badly
when interacting with Emacs, in ways such as stealing input focus and
displaying popup windows that don't disappear. If you are affected,
you should use an Emacs input method instead.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* X runtime problems
Document the problems with S-C-t on X.
2000-12-27 16:20:44 +00:00
Fix some more problems with running Emacs as untrusted * etc/PROBLEMS (X security problems): Describe new variable. * src/xfns.c (append_wm_protocols): Don't support ping when it does not work. * src/xterm.c (x_wm_supports_1): Don't support anything when untrusted. (x_term_init): Implement Vx_detect_server_trust. (syms_of_xterm): New variable `x-detect-server-trust'. * src/xterm.h (struct x_display_info): New field `untrusted'.
2022-12-07 11:19:34 +00:00
** X security problems
*** Emacs faces trouble when running as an untrusted client.
When Emacs is running as an untrusted client under X servers with the
Security extension, it is unable to use some window manager features
but reports them to the window manager anyway. This can lead to
constant prompting by the window manager about Emacs being
unresponsive. To resolve the problem, place:
(setq x-detect-server-trust t)
in your early-init.el.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** X keyboard problems
Document the problems with S-C-t on X.
2000-12-27 16:20:44 +00:00
* etc/PROBLEMS: Document window manager focus problems.
2022-08-07 05:49:59 +00:00
*** `x-focus-frame' fails to activate the frame.
Some window managers prevent `x-focus-frame' from activating the given
frame when Emacs is in the background.
Emacs tries to work around this problem by default, but the workaround
does not work on all window managers. You can try different
workarounds by changing the value of `x-allow-focus-stealing' (see its
doc string for more details). The value `imitate-pager' may be
required on some versions of KWin.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** You "lose characters" after typing Compose Character key.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is because the Compose Character key is defined as the keysym
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
Multi_key, and Emacs (seeing that) does the proper X
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
character-composition processing. If you don't want your Compose key
to do that, you can redefine it with xmodmap.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
For example, here's one way to turn it into a Meta key:
Trailing whitespace deleted.
2003-02-04 14:56:31 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap -e "keysym Multi_key = Meta_L"
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If all users at your site of a particular keyboard prefer Meta to
Compose, you can make the remapping happen automatically by adding the
xmodmap command to the xdm setup script for that display.
#
1999-10-03 12:39:42 +00:00
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
*** Using X Window System, control-shift-leftbutton makes Emacs hang.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Use the shell command 'xset bc' to make the old X Menu package work.
#
1999-10-03 12:39:42 +00:00
(C-SPC fails ...): Explicitly say fcitx in the header.
2006-04-12 06:53:43 +00:00
*** C-SPC fails to work on Fedora GNU/Linux (or with fcitx input method).
*** empty log message ***
2005-06-25 04:48:24 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Fedora Core 4 steals the C-SPC key by default for the 'iiimx' program
*** empty log message ***
2005-06-25 04:48:24 +00:00
which is the input method for some languages. It blocks Emacs users
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
from using the C-SPC key for 'set-mark-command'.
*** empty log message ***
2005-06-25 04:48:24 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
One solutions is to remove the '<Ctrl>space' from the 'Iiimx' file
which can be found in the '/usr/lib/X11/app-defaults' directory.
*** empty log message ***
2005-06-25 04:48:24 +00:00
However, that requires root access.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Another is to specify 'Emacs*useXIM: false' in your X resources.
*** empty log message ***
2005-06-25 04:48:24 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Another is to build Emacs with the '--without-xim' configure option.
*** empty log message ***
2005-06-25 04:48:24 +00:00
(C-SPC fails ...): Add description for fcitx.
2006-04-11 01:28:04 +00:00
The same problem happens on any other system if you are using fcitx
(Chinese input method) which by default use C-SPC for toggling. If
you want to use fcitx with Emacs, you have two choices. Toggle fcitx
by another key (e.g. C-\) by modifying ~/.fcitx/config, or be
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
accustomed to use C-@ for 'set-mark-command'.
(C-SPC fails ...): Add description for fcitx.
2006-04-11 01:28:04 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** M-SPC seems to be ignored as input.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
See if your X server is set up to use this as a command
for character composition.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** The S-C-t key combination doesn't get passed to Emacs on X.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This happens because some X configurations assign the Ctrl-Shift-t
combination the same meaning as the Multi_key. The offending
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
definition is in the file '...lib/X11/locale/iso8859-1/Compose'; there
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
might be other similar combinations which are grabbed by X for similar
purposes.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
We think that this can be countermanded with the 'xmodmap' utility, if
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
you want to be able to bind one of these key sequences within Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Under X, C-v and/or other keys don't work.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
These may have been intercepted by your window manager.
See the WM's documentation for how to change this.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Clicking C-mouse-2 in the scroll bar doesn't split the window.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This currently doesn't work with scroll-bar widgets (and we don't know
a good way of implementing it with widgets). If Emacs is configured
--without-toolkit-scroll-bars, C-mouse-2 on the scroll bar does work.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Inability to send an Alt-modified key, when Emacs is communicating
directly with an X server.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you have tried to bind an Alt-modified key as a command, and it
does not work to type the command, the first thing you should check is
whether the key is getting through to Emacs. To do this, type C-h c
followed by the Alt-modified key. C-h c should say what kind of event
it read. If it says it read an Alt-modified key, then make sure you
have made the key binding correctly.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If C-h c reports an event that doesn't have the Alt modifier, it may
be because your X server has no key for the Alt modifier. The X
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
server that comes from MIT does not set up the Alt modifier by default.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If your keyboard has keys named Alt, you can enable them as follows:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap -e 'add mod2 = Alt_L'
xmodmap -e 'add mod2 = Alt_R'
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If the keyboard has just one key named Alt, then only one of those
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
commands is needed. The modifier 'mod2' is a reasonable choice if you
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
are using an unmodified MIT version of X. Otherwise, choose any
modifier bit not otherwise used.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If your keyboard does not have keys named Alt, you can use some other
keys. Use the keysym command in xmodmap to turn a function key (or
some other 'spare' key) into Alt_L or into Alt_R, and then use the
commands show above to make them modifier keys.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Note that if you have Alt keys but no Meta keys, Emacs translates Alt
into Meta. This is because of the great importance of Meta in Emacs.
#
1999-10-03 12:39:42 +00:00
Update PROBLEMS with selection-related issues * etc/PROBLEMS: Update the entry about large selections and klipper. (Bug#29661)
2018-01-01 16:28:53 +00:00
*** Emacs hangs or crashes when a large portion of text is selected or killed.
This is caused by a bug in the clipboard management applets (it has
been observed in 'klipper' and 'clipit'), which periodically request
the X clipboard contents from applications. After a while, Emacs may
print a message:
Timed out waiting for property-notify event
A workaround is to not use 'klipper'/'clipit'. Upgrading 'klipper' to
the one coming with KDE 3.3 or later might solve the problem; if it
doesn't, set 'select-active-regions' to 'only' or nil.
Document a problem with IBus and the C-. key * etc/PROBLEMS: Document an IBus emoji panel problem.
2021-12-28 07:30:31 +00:00
*** Emacs doesn't receive the key "C-.", displaying an input field instead.
This is caused by the IBus Emoji input panel, which is usually bound
to "C-.". You can disable that panel by running the following
command:
$ gsettings set org.freedesktop.ibus.panel.emoji hotkey "[]"
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Window-manager and toolkit-related problems
#
1999-10-03 12:39:42 +00:00
Document workaround for bug#56627 * etc/PROBLEMS: Document problems with GTK tool bar icons on some icon themes. (bug#56627)
2022-07-19 03:29:34 +00:00
*** Emacs built with GTK+ displays giant tool bar icons in some cases
This is because some icon themes (such as the KDE Breeze icon theme)
have several incorrectly sized icons, which also causes the toolbar to
expand uncontrollably. The fix is to switch to a different icon
theme, or to use Emacs's own toolbar icons by placing:
(setq x-gtk-stock-map nil)
in your early-init.el.
Mention GTK+ problems in etc/PROBLEMS * etc/PROBLEMS (GDK_SCALE, GDK_DPI_SCALE): Mention the possible problems this could create and the workaround. (Bug#23587)
2016-05-21 07:19:32 +00:00
*** Emacs built with GTK+ toolkit produces corrupted display on HiDPI screen
This can happen if you set GDK_SCALE=2 in the environment or in your
'.xinitrc' file. (This setting is usually accompanied by
GDK_DPI_SCALE=0.5.) Emacs can not support these settings correctly,
as it doesn't use GTK+ exclusively. The result is that sometimes
widgets like the scroll bar are displayed incorrectly, and frames
could be displayed "cropped" to only part of the stuff that should be
displayed.
The workaround is to explicitly disable these settings when invoking
Emacs, for example (from a Posix shell prompt):
$ GDK_SCALE=1 GDK_DPI_SCALE=1 emacs
* etc/PROBLEMS: Mention GTK+ problem with unexpected frame widenings
2016-07-06 07:55:46 +00:00
*** Emacs built with GTK+ toolkit can unexpectedly widen frames
This resizing takes place when a frame is not wide enough to accommodate
its entire menu bar. Typically, it occurs when switching buffers or
changing a buffer's major mode and the new mode adds entries to the menu
bar. The frame is then widened by the window manager so that the menu
bar is fully shown. Subsequently switching to another buffer or
changing the buffer's mode will not shrink the frame back to its
previous width. The height of the frame remains unaltered. Apparently,
the failure is also dependent on the chosen font.
The resizing is usually accompanied by console output like
Gtk-CRITICAL **: gtk_distribute_natural_allocation: assertion 'extra_space >= 0' failed
It's not clear whether the GTK version used has any impact on the
occurrence of the failure. So far, the failure has been observed with
Amend last addition to etc/PROBLEMS
2016-07-06 08:39:11 +00:00
GTK+ versions 3.4.2, 3.14.5 and 3.18.7. However, another 3.4.2 build
does not exhibit the bug.
* etc/PROBLEMS: Mention GTK+ problem with unexpected frame widenings
2016-07-06 07:55:46 +00:00
; Spelling fixes
2016-07-13 10:23:22 +00:00
Some window managers (Xfce) apparently work around this failure by
* etc/PROBLEMS: Mention GTK+ problem with unexpected frame widenings
2016-07-06 07:55:46 +00:00
cropping the menu bar. With other windows managers, it's possible to
shrink the frame manually after the problem occurs, e.g. by dragging the
frame's border with the mouse. However, some window managers have been
reported to refuse such attempts and snap back to the width needed to
show the full menu bar (wmii) or at least cause the screen to flicker
; Spelling fixes
2016-07-13 10:23:22 +00:00
during such resizing attempts (i3, IceWM).
* etc/PROBLEMS: Mention GTK+ problem with unexpected frame widenings
2016-07-06 07:55:46 +00:00
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
See also https://debbugs.gnu.org/cgi/bugreport.cgi?bug=15700,
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22000,
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22898 and
maint: shorten https://lists.gnu.org/archive/html/... links
2017-11-26 06:45:41 +00:00
https://lists.gnu.org/r/emacs-devel/2016-07/msg00154.html.
Amend last addition to etc/PROBLEMS
2016-07-06 08:39:11 +00:00
Mention Metacity hang on Emacs resize.
2009-11-26 07:15:33 +00:00
*** Metacity: Resizing Emacs or ALT-Tab causes X to be unresponsive.
This happens sometimes when using Metacity. Resizing Emacs or ALT-Tab:bing
makes the system unresponsive to the mouse or the keyboard. Killing Emacs
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
or shifting out from X and back again usually cures it (i.e. Ctrl-Alt-F1
Mention Metacity hang on Emacs resize.
2009-11-26 07:15:33 +00:00
and then Alt-F7). A bug for it is here:
https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/231034.
Note that a permanent fix seems to be to disable "assistive technologies".
Add workaround to handle a problem with Enlightenment WM (Bug#53298) * src/xterm.c (handle_one_xevent): Handle setting of variable 'x_set_frame_visibility_more_laxly' when receiving an Expose or FocusIn event (Bug#53298). (Qexpose): Define symbol. (x_set_frame_visibility_more_laxly): New Lisp variable. * etc/PROBLEMS: Mention frame redraw problem with the Enlightenment WM and 'x-set-frame-visibility-more-laxly' workaround.
2022-01-20 09:30:08 +00:00
*** Enlightenment: Frames not redrawn after switching virtual desktops
With Enlightenment version 0.25, Emacs frames may no be redrawn orderly
after switching back from another virtual desktop. Setting the variable
'x-set-frame-visibility-more-laxly' to one of 'focus-in', 'expose' or
't' should fix this.
* PROBLEMS: Document Emacs/XIM/gnome-settings-terminal clash.
2006-09-30 17:58:29 +00:00
*** Gnome: Emacs receives input directly from the keyboard, bypassing XIM.
This seems to happen when gnome-settings-daemon version 2.12 or later
is running. If gnome-settings-daemon is not running, Emacs receives
input through XIM without any problem. Furthermore, this seems only
to happen in *.UTF-8 locales; zh_CN.GB2312 and zh_CN.GBK locales, for
example, work fine. A bug report has been filed in the Gnome
Update GNOME bugtracker URLs * configure.ac, admin/notes/multi-tty, etc/PROBLEMS: * src/emacs.c (main): * src/xterm.c (x_connection_closed): Update GNOME bugtracker URLs. ; * src/gtkutil.c (xg_display_close): ; * src/image.c (svg_load_image): Update URLs in comments.
2018-08-24 17:13:08 +00:00
bugzilla: https://bugzilla.gnome.org/show_bug.cgi?id=357032
* PROBLEMS: Document Emacs/XIM/gnome-settings-terminal clash.
2006-09-30 17:58:29 +00:00
Mention problems with GPaste in PROBLEMS * etc/PROBLEMS (GPaste): Mention the problem in yanking caused by GPaste, and its solution. (Bug#25902)
2017-03-04 09:17:40 +00:00
*** Gnome: GPaste clipboard manager causes erratic behavior of 'yank'
The symptom is that 'kill-line' followed by 'yank' often (but not
always) doesn't insert the whitespace of the killed and yanked line.
The solution is to set the GPaste "trim items" option to OFF.
* etc/PROBLEMS: Describe navigation problem from Nautilus. (Bug#37573) * lisp/userlock.el (create-lockfiles): Set `safe-local-variable' property.
2019-10-08 13:41:00 +00:00
*** Gnome: Navigation from Nautilus to remote files.
If you navigate to a file, which belongs to a remote server, in
Nautilus via "Open With Emacs" you might not be able to save this file
once you have modified it in Emacs. The reasons for the failure can
vary, and for some connection methods saving the file might even succeed.
If the remote connection in Nautilus uses ssh or sftp, you could
mitigate the problem by the following lines in your .emacs file:
(dir-locals-set-class-variables 'gvfs '((nil . ((create-lockfiles . nil)))))
(dir-locals-set-directory-class (format "/run/user/%d/gvfs" (user-uid)) 'gvfs)
A better approach might be to avoid navigation from Nautilus to Emacs
for such files, and instead to open the file in Emacs using Tramp
remote file name syntax.
Document a bug that exists with some versions of GNOME and GTK * etc/PROBLEMS (Window-manager and toolkit-related problems): Document GNOME shell bug.
2021-12-18 06:50:16 +00:00
*** Gnome: GTK builds with XInput2 freeze when making a frame fullscreen.
This problem exists with GTK 3.24.30 in GNOME 41.1 and possibly other
versions. The solution is to upgrade GNOME Shell to the version that
comes with GNOME 41.2.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** KDE: When running on KDE, colors or fonts are not as specified for Emacs,
or messed up.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
For example, you could see background you set for Emacs only in the
empty portions of the Emacs display, while characters have some other
background.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This happens because KDE's defaults apply its color and font
definitions even to applications that weren't compiled for KDE. The
solution is to uncheck the "Apply fonts and colors to non-KDE apps"
option in Preferences->Look&Feel->Style (KDE 2). In KDE 3, this option
is in the "Colors" section, rather than "Style".
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Alternatively, if you do want the KDE defaults to apply to other
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
applications, but not to Emacs, you could modify the file 'Emacs.ad'
(should be in the '/usr/share/apps/kdisplay/app-defaults/' directory)
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
so that it doesn't set the default background and foreground only for
Emacs. For example, make sure the following resources are either not
present or commented out:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Emacs.default.attributeForeground
Emacs.default.attributeBackground
Emacs*Foreground
Emacs*Background
#
1999-10-03 12:39:42 +00:00
(bugzilla): Mention gtk-engines-qt bug.
2007-07-14 09:02:35 +00:00
It is also reported that a bug in the gtk-engines-qt engine can cause this if
Emacs is compiled with Gtk+.
The bug is fixed in version 0.7 or newer of gtk-engines-qt.
* etc/PROBLEMS: Add entry about selection problems under Plasma 5. Bug#24013
2016-07-21 15:07:48 +00:00
*** KDE / Plasma 5: Emacs exhausts memory and needs to be killed
This problem occurs when large selections contain mixed line endings
(i.e. the buffer has LF line endings, but in some parts CRLF is used).
The source of the problem is currently under investigation, older
versions of Emacs up to 24.5 just hang for a few seconds and then
return with the message "Timed out waiting for property-notify event"
as described in the previous note. As a workaround, go to the
settings dialog for the Clipboard widget and select the option "Ignore
Selection".
Note: Plasma 5 has replaced the separate klipper process from earlier
KDE versions with functionality directly integrated into plasmashell,
so even if you've previously did not use klipper this will affect you.
Also, all configuration you might have done to klipper is not used by
the new Clipboard widget / plasmoid since it uses its own settings.
You can hide the Clipboard widget by removing its entry from the
system tray settings "Extra Items", but it's not clear if the
underlying functionality in plasmashell gets fully disabled as well.
At least a restart of plasmashell is required for the clipboard
history to be cleared.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** CDE: Frames may cover dialogs they created when using CDE.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if you have "Allow Primary Windows On Top" enabled which
seems to be the default in the Common Desktop Environment.
To change, go in to "Desktop Controls" -> "Window Style Manager"
and uncheck "Allow Primary Windows On Top".
Document problems with AUC TeX and Emacs 21.
2001-02-05 17:16:40 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Xaw3d : When using Xaw3d scroll bars without arrows, the very first mouse
click in a scroll bar might be ignored by the scroll bar widget. This
is probably a bug in Xaw3d; when Xaw3d is compiled with arrows, the
problem disappears.
Document problems with AUC TeX and Emacs 21.
2001-02-05 17:16:40 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Xaw: There are known binary incompatibilities between Xaw, Xaw3d, neXtaw,
XawM and the few other derivatives of Xaw. So when you compile with
one of these, it may not work to dynamically link with another one.
For example, strange problems, such as Emacs exiting when you type
"C-x 1", were reported when Emacs compiled with Xaw3d and libXaw was
used with neXtaw at run time.
What to do when AUC TeX don't fontify.
2001-11-20 19:14:55 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to rebuild Emacs with the toolkit version you actually
want to use, or set LD_PRELOAD to preload the same toolkit version you
built Emacs with.
What to do when AUC TeX don't fontify.
2001-11-20 19:14:55 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Open Motif: Problems with file dialogs in Emacs built with Open Motif.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
When Emacs 21 is built with Open Motif 2.1, it can happen that the
graphical file dialog boxes do not work properly. The "OK", "Filter"
and "Cancel" buttons do not respond to mouse clicks. Dragging the
file dialog window usually causes the buttons to work again.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
As a workaround, you can try building Emacs using Motif or LessTif instead.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another workaround is not to use the mouse to trigger file prompts,
but to use the keyboard. This way, you will be prompted for a file in
the minibuffer instead of a graphical file dialog.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** LessTif: Problems in Emacs built with LessTif.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The problems seem to depend on the version of LessTif and the Motif
emulation for which it is set up.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Only the Motif 1.2 emulation seems to be stable enough in LessTif.
Fix some typos.
2007-04-12 04:16:47 +00:00
LessTif 0.92-17's Motif 1.2 emulation seems to work okay on FreeBSD.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
On GNU/Linux systems, lesstif-0.92.6 configured with "./configure
--enable-build-12 --enable-default-12" is reported to be the most
successful. The binary GNU/Linux package
lesstif-devel-0.92.0-1.i386.rpm was reported to have problems with
menu placement.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
On some systems, Emacs occasionally locks up, grabbing all mouse and
keyboard events. We don't know what causes these problems; they are
not reproducible by Emacs developers.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Motif: The Motif version of Emacs paints the screen a solid color.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This has been observed to result from the following X resource:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Emacs*default.attributeFont: -*-courier-medium-r-*-*-*-140-*-*-*-*-iso8859-*
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
That the resource has this effect indicates a bug in something, but we
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
do not know what. If it is an Emacs bug, we hope someone can
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
explain what the bug is so we can fix it. In the mean time, removing
the resource prevents the problem.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Document stickyness problem with FVWM (Bug#31650)
2018-06-02 07:49:13 +00:00
*** FVWM: Some versions of FVWM incorrectly set the 'sticky' frame parameter.
Version 2.6.4 of the FVWM can make a frame sticky (appear on all user
desktops) when setting the 'sticky' frame parameter to nil. This may
happen without any special user interaction, for example, when Emacs
; * etc/PROBLEMS: Fix fvwm version number in last commit
2018-06-02 09:05:52 +00:00
restores a saved desktop. A fix is to install version 2.6.8 of FVWM,
* etc/PROBLEMS: Document stickyness problem with FVWM (Bug#31650)
2018-06-02 07:49:13 +00:00
see https://debbugs.gnu.org/cgi/bugreport.cgi?bug=31650.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** General X problems
Document problems with KDE's klipper.
2001-06-15 10:51:45 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
*** Redisplay using X is much slower than previous Emacs versions.
Document problems with KDE's klipper.
2001-06-15 10:51:45 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
We've noticed that certain X servers draw the text much slower when
scroll bars are on the left. We don't know why this happens. If this
happens to you, you can work around it by putting the scroll bars
on the right (as they were in Emacs 19).
Document problems with KDE's klipper.
2001-06-15 10:51:45 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Here's how to do this:
Document problems with KDE's klipper.
2001-06-15 10:51:45 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(set-scroll-bar-mode 'right)
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you're not sure whether (or how much) this problem affects you,
try that and see how much difference it makes. To set things back
to normal, do
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(set-scroll-bar-mode 'left)
#
1999-10-03 12:39:42 +00:00
; * etc/PROBLEMS: Minor wording fix.
2023-09-03 06:03:22 +00:00
*** Redisplay with scaled images is slow in Emacs built with Cairo.
* etc/PROBLEMS: Mention bug#65432 and its remedy.
2023-09-03 01:25:06 +00:00
; * etc/PROBLEMS: Minor wording fix.
2023-09-03 06:03:22 +00:00
Cairo expends a noticeable amount of CPU time displaying large images
with applied transforms. These images most frequently appear within
EWW buffers or in Image Mode buffers after executing the image scaling
* etc/PROBLEMS: Mention bug#65432 and its remedy.
2023-09-03 01:25:06 +00:00
commands `i +' or `i -', and their presence incurs a performance
penalty of hundereds of milliseconds to seconds upon redisplay. The
; * etc/PROBLEMS: Minor wording fix.
2023-09-03 06:03:22 +00:00
remedy is to build Emacs without Cairo after verifying the XRender
extension is present on your X server and its headers are present on
your system, in which case Emacs will use XRender to efficiently
perform image transforms within the X server.
* etc/PROBLEMS: Mention bug#65432 and its remedy.
2023-09-03 01:25:06 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Error messages about undefined colors on X.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The messages might say something like this:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Unable to load color "grey95"
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
(typically, in the '*Messages*' buffer), or something like this:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Error while displaying tooltip: (error Undefined color lightyellow)
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
These problems could happen if some other X program has used up too
many colors of the X palette, leaving Emacs with insufficient system
resources to load all the colors it needs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A solution is to exit the offending X programs before starting Emacs.
#
1999-10-03 12:39:42 +00:00
*** empty log message ***
2006-03-11 15:46:24 +00:00
"undefined color" messages can also occur if the RgbPath entry in the
X configuration file is incorrect, or the rgb.txt file is not where
X expects to find it.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Improving performance with slow X connections.
#
1999-10-03 12:39:42 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
There are several ways to improve this performance, any subset of
which can be carried out at the same time:
#
1999-10-03 12:39:42 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
1) Use the "--with-x-toolkit=no" build of Emacs. By not relying on
any toolkit (exhibiting potentially slow behavior), it has been
made very fast over networks exhibiting high latency, but suitable
bandwidth.
2) If you don't need X Input Methods (XIM) for entering text in some
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
language you use, you can improve performance on WAN links by using
the X resource useXIM to turn off use of XIM. This does not affect
* etc/PROBLEMS: Remove yet more old stuff; more small edits
2014-01-07 02:33:46 +00:00
the use of Emacs's own input methods, which are part of the Leim
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
package.
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
3) If the connection is very slow, you might also want to consider
More details about disabling features that hamper performance with slow X connections.
2007-01-27 18:12:50 +00:00
switching off scroll bars, menu bar, and tool bar. Adding the
following forms to your .emacs file will accomplish that, but only
fix many doubled-word typos
2011-05-10 13:57:12 +00:00
after the initial frame is displayed:
More details about disabling features that hamper performance with slow X connections.
2007-01-27 18:12:50 +00:00
(scroll-bar-mode -1)
(menu-bar-mode -1)
(tool-bar-mode -1)
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
For still quicker startup, put these X resources in your
.Xresources or .Xdefaults file:
More details about disabling features that hamper performance with slow X connections.
2007-01-27 18:12:50 +00:00
Emacs.verticalScrollBars: off
Emacs.menuBar: off
Emacs.toolBar: off
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
4) Use ssh to forward the X connection, and enable compression on this
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
forwarded X connection (ssh -XC remotehostname emacs ...).
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
Keep in mind that this does not help with latency problems, only
; * etc/PROBLEMS: Fix typo.
2023-06-26 13:26:32 +00:00
bandwidth ones.
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
5) Use lbxproxy on the remote end of the connection. This is an
interface to the low bandwidth X extension in some outdated X
servers, which improves performance dramatically, at the slight
expense of correctness of the X protocol. lbxproxy achieves the
performance gain by grouping several X requests in one TCP packet
and sending them off together, instead of requiring a round-trip
for each X request in a separate packet. The switches that seem to
work best for emacs are: -noatomsfile -nowinattr -cheaterrors
-cheatevents Note that the -nograbcmap option is known to cause
problems. For more about lbxproxy, see:
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
http://www.x.org/archive/X11R6.8.0/doc/lbxproxy.1.html
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
Keep in mind that lbxproxy and the LBX extension are now obsolete.
6) If copying and killing is slow, try to disable the interaction with the
Add Tip to speed up copy/kill for remote X session.
2006-11-03 09:24:40 +00:00
native system's clipboard by adding these lines to your .emacs file:
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
Add Tip to speed up copy/kill for remote X session.
2006-11-03 09:24:40 +00:00
(setq interprogram-cut-function nil)
(setq interprogram-paste-function nil)
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
7) If selecting text with the mouse is slow, the main culprit is
likely `select-active-regions', coupled with a program monitoring
Add variable to make resizing frames sometimes faster * etc/PROBLEMS: Add documentation about new variable. * src/xterm.c (x_set_offset, x_set_window_size_1): Respect new variable. (syms_of_xterm): Add a new variable to prevent Emacs from syncing upon resize or movement.
2022-12-12 11:21:10 +00:00
the clipboard or primary selection on the X server you are
connected to. Try turning that off.
Add knob to make `mouse-position' faster on X * etc/PROBLEMS (Improving performance with slow X connections): Add new advice. * src/xterm.c (XTmouse_position): Add alternative implementations for slow connections. (syms_of_xterm): Add new variable to enable them. * src/xterm.h (struct x_display_info): Update commentary.
2022-11-18 01:08:59 +00:00
However, over networks with moderate to high latency, with no
clipboard monitor running, the bottleneck is likely to be
`mouse-position' instead. Set the variable
`x-use-fast-mouse-position' to either any non-nil value, or to the
symbol `really-fast' if that is still too slow. Doing so will also
cause Emacs features that relies on accurate mouse position
reporting to stop working reliably.
Add variable to make resizing frames sometimes faster * etc/PROBLEMS: Add documentation about new variable. * src/xterm.c (x_set_offset, x_set_window_size_1): Respect new variable. (syms_of_xterm): Add a new variable to prevent Emacs from syncing upon resize or movement.
2022-12-12 11:21:10 +00:00
8) If creating or resizing frames is slow, turn off
`frame-resize-pixelwise' (this will not take effect until you
Improve earlier changes to xterm.c * etc/PROBLEMS: Update for renamed variable. * src/xterm.c (x_make_frame_visible): Better respect `x-lax-frame-positioning'.
2022-12-19 05:40:54 +00:00
create a new frame); then, enable `x-lax-frame-positioning'. This
Add variable to make resizing frames sometimes faster * etc/PROBLEMS: Add documentation about new variable. * src/xterm.c (x_set_offset, x_set_window_size_1): Respect new variable. (syms_of_xterm): Add a new variable to prevent Emacs from syncing upon resize or movement.
2022-12-12 11:21:10 +00:00
means frame placement will be less accurate, but makes frame
creation, movement, and resize visibly faster.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs gives the error, Couldn't find per display information.
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can result if the X server runs out of memory because Emacs uses
a large number of fonts. On systems where this happens, C-h h is
likely to cause it.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
We do not know of a way to prevent the problem.
*** empty log message ***
2002-08-17 00:08:54 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs does not notice when you release the mouse.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
There are reports that this happened with (some) Microsoft mice and
that replacing the mouse made it stop.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** You can't select from submenus (in the X toolkit version).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
On certain systems, mouse-tracking and selection in top-level menus
works properly with the X toolkit, but neither of them works when you
bring up a submenu (such as Bookmarks or Compare or Apply Patch, in
the Files menu).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This works on most systems. There is speculation that the failure is
due to bugs in old versions of X toolkit libraries, but no one really
knows. If someone debugs this and finds the precise cause, perhaps a
workaround can be found.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** An error message such as 'X protocol error: BadMatch (invalid
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
parameter attributes) on protocol request 93'.
Advise not to use Exceed 6.1.
2002-05-03 09:56:01 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This comes from having an invalid X resource, such as
emacs*Cursor: black
(which is invalid because it specifies a color name for something
that isn't a color.)
Advise not to use Exceed 6.1.
2002-05-03 09:56:01 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The fix is to correct your X resources.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Slow startup on X11R6 with X windows.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If Emacs takes two minutes to start up on X11R6, see if your X
resources specify any Adobe fonts. That causes the type-1 font
renderer to start up, even if the font you asked for is not a type-1
font.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
One way to avoid this problem is to eliminate the type-1 fonts from
your font path, like this:
#
1999-10-03 12:39:42 +00:00
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
xset -fp /usr/X11R6/lib/X11/fonts/Type1/
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Pull-down menus appear in the wrong place, in the toolkit version of Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
An X resource of this form can cause the problem:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Emacs*geometry: 80x55+0+0
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This resource is supposed to apply, and does apply, to the menus
individually as well as to Emacs frames. If that is not what you
want, rewrite the resource.
Update Solaris 2.6 and 7 problems.
1999-11-30 18:44:14 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
To check thoroughly for such resource specifications, use 'xrdb
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
-query' to see what resources the X server records, and also look at
the user's ~/.Xdefaults and ~/.Xdefaults-* files.
#
1999-10-03 12:39:42 +00:00
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
*** Emacs running under X Window System does not handle mouse clicks.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** 'emacs -geometry 80x20' finds a file named '80x20'.
Added information on how to set options in CDE so dialogs are not covered by the parent frame.
2002-03-02 11:14:03 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
One cause of such problems is having (setq term-file-prefix nil) in
your .emacs file. Another cause is a bad value of EMACSLOADPATH in
the environment.
Added information on how to set options in CDE so dialogs are not covered by the parent frame.
2002-03-02 11:14:03 +00:00
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
*** X doesn't work if DISPLAY uses a hostname.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
People have reported kernel bugs in certain systems that cause Emacs
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
not to work with X if DISPLAY is set using a host name. But
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
the problem does not occur if DISPLAY is set to 'unix:0.0'. I think
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the bug has to do with SIGIO or FIONREAD.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You may be able to compensate for the bug by doing (set-input-mode nil nil).
However, that has the disadvantage of turning off interrupts, so that
you are unable to quit out of a Lisp program by typing C-g.
#
1999-10-03 12:39:42 +00:00
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
*** Prevent double pastes in X
The problem: a region, such as a command, is pasted twice when you copy
it with your mouse from GNU Emacs to an xterm or an RXVT shell in X.
The solution: try the following in your X configuration file,
/etc/X11/xorg.conf This should enable both PS/2 and USB mice for
single copies. You do not need any other drivers or options.
Section "InputDevice"
Identifier "Generic Mouse"
Driver "mousedev"
Option "Device" "/dev/input/mice"
EndSection
Add PROBLEMS entry for X clipboard managers slowing down exit See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8869#92
2012-02-25 01:54:17 +00:00
*** Emacs is slow to exit in X
After you use e.g. C-x C-c to exit, it takes many seconds before the
Emacs window disappears. If Emacs was started from a terminal, you
see the message:
Error saving to X clipboard manager.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
If the problem persists, set 'x-select-enable-clipboard-manager' to nil.
Add PROBLEMS entry for X clipboard managers slowing down exit See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8869#92
2012-02-25 01:54:17 +00:00
As the message suggests, this problem occurs when Emacs thinks you
have a clipboard manager program running, but has trouble contacting it.
If you don't want to use a clipboard manager, you can set the
suggested variable. Or you can make Emacs not wait so long by
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
reducing the value of 'x-selection-timeout', either in .emacs or with
Add PROBLEMS entry for X clipboard managers slowing down exit See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8869#92
2012-02-25 01:54:17 +00:00
X resources.
Sometimes this problem is due to a bug in your clipboard manager.
Updating to the latest version of the manager can help.
For example, in the Xfce 4.8 desktop environment, the clipboard
manager in versions of xfce4-settings-helper before 4.8.2 is buggy;
https://bugzilla.xfce.org/show_bug.cgi?id=7588 .
* PROBLEMS: Mention Ubuntu warnings about libdbusmenu.
2013-04-07 11:01:56 +00:00
*** Warning messages when running in Ubuntu
When you start Emacs you may see something like this:
Make it easier on maintainers who use their own Automake. * autogen.sh (ACLOCAL_PATH, AUTORECONF_ENV): New vars. Set them to avoid problems when maintainers prepend their own Automake installations to their PATH. Report an error if pkg.m4 can't be found.
2014-05-03 07:09:16 +00:00
(emacs:2286): LIBDBUSMENU-GTK-CRITICAL **: watch_submenu: assertion
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'GTK_IS_MENU_SHELL(menu)' failed
* PROBLEMS: Mention Ubuntu warnings about libdbusmenu.
2013-04-07 11:01:56 +00:00
Fix typos
2013-04-10 01:20:51 +00:00
This happens if the Emacs binary has been renamed. The cause is the Ubuntu
* PROBLEMS: Mention Ubuntu warnings about libdbusmenu.
2013-04-07 11:01:56 +00:00
appmenu concept. It tries to track Emacs menus and show them in the top
panel, instead of in each Emacs window. This is not properly implemented,
so it fails for Emacs. The order of menus is wrong, and things like copy/paste
Fix typos
2013-04-10 01:20:51 +00:00
that depend on what state Emacs is in are usually wrong (i.e. paste disabled
* PROBLEMS: Mention Ubuntu warnings about libdbusmenu.
2013-04-07 11:01:56 +00:00
even if you should be able to paste, and similar).
You can get back menus on each frame by starting emacs like this:
% env UBUNTU_MENUPROXY= emacs
Add ASTEC-X issue to PROBLEMS * etc/PROBLEMS: Mention problem with multiple monitors on proprietary X Server ASTEC-X. (Bug#36779)
2020-08-27 05:58:17 +00:00
*** Mouse click coordinates not recognized correctly on multiple monitors.
This happens on the proprietary X server ASTEC-X when the number of
monitors is changed after the server has started. A workaround is to
restart the X server after the monitor configuration has been changed.
; * etc/PROBLEMS: Update the touch-gestures section.
2022-06-24 07:09:39 +00:00
*** Touchpad gestures don't work and/or emit warning messages.
; * etc/PROBLEMS: Fix errors in last change.
2022-06-24 08:31:45 +00:00
Support for touch gestures in Emacs requires a sufficiently new X
server. We currently know of only one: version 21.1.0 or later of the
X.Org server, coupled with the xf86-input-libinput input driver.
; * etc/PROBLEMS: Update the touch-gestures section.
2022-06-24 07:09:39 +00:00
Type 'M-: (x-server-input-extension-version) RET'; if that doesn't
return '(2 4)' (version 2.4) or later, your version of the X server
and libraries are too old and need to be upgraded.
Add support for pinch gestures to the XI2 build * doc/lispref/commands.texi (Misc Events): Document new event type `pinch'. * etc/NEWS: Announce new event `pinch'. * etc/PROBLEMS: Document problems with mismatched libXi versions. * lisp/face-remap.el (text-scale--pinch-start-scale): New variable. (text-scale-pinch): New command. * src/keyboard.c (make_lispy_event): Handle PINCH_EVENTs. (syms_of_keyboard): New symbol `pinch'. * src/termhooks.h (enum event_kind): New enum `PINCH_EVENT'. * src/xfns.c (setup_xi_event_mask): Add pinch events to event mask if available. * src/xterm.c (handle_one_xevent): Handle pinch events.
2021-12-26 05:47:23 +00:00
When pinching or swiping on your touchpad, you might see a warning
message that looks like:
XInputWireToCookie: Unknown generic event. type 28
This happens when your XInput headers support XInput 2.4, but the
actual version of libXi installed does not. The solution is to
upgrade your libXi binaries to libXi 1.8.0 or later, to correspond
with your XInput headers.
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
*** Requesting a private colormap makes Emacs hang.
The part of Xlib that provides this feature is broken in modern
incarnations of Xlib, so it cannot possibly work. The solution is to
remove anything that looks like this:
Emacs.privateColormap: on
From your X defaults file. Your X server might also provide a
different visual class that will do what you want. You can experiment
; * etc/PROBLEMS: Fix typos and improve wording.
2022-02-08 16:53:40 +00:00
with `TrueColor-8', by placing this:
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
Emacs.visualClass: TrueColor-8
; * etc/PROBLEMS: Fix typos and improve wording.
2022-02-08 16:53:40 +00:00
in your ~/.Xresources, and loading that file.
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
; * etc/PROBLEMS: Fix typos and improve wording.
2022-02-08 16:53:40 +00:00
*** Colors messed up on Cairo or GTK builds.
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
If your display defaults to a visual where pixel values cannot be
directly converted to their corresponding real colors, a build with
Cairo drawing or GTK will display colors incorrectly. This is because
Cairo and GTK foolishly assume that all RGB values can be converted
directly from their individual components, without asking the X server
to allocate the color.
Your X server might have a different visual which is decomposed and
not colormapped. Try the following in your ~/.Xresources:
Emacs.visualClass: TrueColor-N
; * etc/PROBLEMS: Fix typos and improve wording.
2022-02-08 16:53:40 +00:00
where "N" is the bit depth of the visual your X server defaults to.
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
If that does not work, you lose. Configure Emacs '--without-cairo'
and '--with-x-toolkit=lucid' instead.
*** GUI widgets don't display on GTK builds, except for scrollbars.
This can happen if your visual does not have a decomposed colormap,
and your X server has the X rendering extension.
To solve the problem, disable the X rendering extension on your X
server, or rebuild Emacs without GTK+.
*** On Accelerated X, the GTK 3 menu bar does not select items.
The solution is to run Emacs with the environment variable 'GDK_DEBUG'
set to "nograbs", like this (where "..." stands for the other
command-line arguments you intend to pass to Emacs):
GDK_DEBUG=nograbs emacs ...
Accelerated X is a proprietary X server. Aside from being
proprietary, it has many other disadvantages, such as not supporting
most recent hardware and most modern extensions to the X protocol.
Consider switching to a free X server, such as X.Org.
; * etc/PROBLEMS: Fix typos and improve wording.
2022-02-08 16:53:40 +00:00
If setting GDK_DEBUG causes GTK to complain about not being built with
support for debugging options, then there is nothing you can do,
except switch to a free X server.
Document some problems found during testing on various X servers * etc/PROBLEMS (General X problems): Document some problems found during testing on various X servers.
2022-02-08 13:32:07 +00:00
* etc/PROBLEMS: Document some limitations of Xwayland and PGTK.
2022-02-11 06:46:25 +00:00
*** 'set-mouse-position' does not move the pointer on Xwayland.
This is because Wayland does not allow programs to warp the pointer.
There is nothing that can be done about this problem, except to switch
to an X session.
Some versions of the Xwayland server will pretend to warp the pointer,
so mouse-motion events might be sent to the position the mouse was
supposed to have moved to, even though the cursor displays at the same
on-screen position.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Mention X forwarding slowdowns. (Bug#7092)
2021-11-05 06:49:39 +00:00
*** With X forwarding, mouse highlighting can make Emacs slow.
If you see slow updates when moving the mouse in an Emacs running on a
remote X server, try this:
(setq mouse-highlight nil)
; * etc/PROBLEMS: Explain how to get dropping text on xterm to work.
2022-04-07 02:20:47 +00:00
*** Dropping text on xterm doesn't work.
; Fix typos
2023-12-03 22:31:30 +00:00
Emacs sends synthetic button events to legacy clients such as xterm
; * etc/PROBLEMS: Explain how to get dropping text on xterm to work.
2022-04-07 02:20:47 +00:00
that do not support either the XDND or Motif drag-and-drop protocols
in order to "paste" the text that was dropped. Unfortunately, xterm
is configured to ignore these events by default. Add the following to
your X defaults file to avoid the problem:
XTerm.*.allowSendEvents: True
; * etc/PROBLEMS: Fix typo.
2022-05-04 12:46:59 +00:00
Note that this can in theory pose a security risk, but in practice
; * etc/PROBLEMS: Explain how to get dropping text on xterm to work.
2022-04-07 02:20:47 +00:00
modern X servers have so many other ways to send input to clients
without signifying that the event is synthesized that it does not
matter.
; Document core input events problems with XInput2 * etc/PROBLEMS: Document problems with XInput2 and core input events. (Bug#66765)
2023-11-04 11:03:27 +00:00
*** Programs which use XSendEvent cannot send input events to Emacs.
Emacs built to use the X Input Extension cannot receive core input
events sent through the SendEvent server request, since these events
intercepted by the X server when sent to input extension clients.
For such programs to function again, Emacs must be run on an X server
where the input extension is disabled, or alternatively be configured
with the "--without-xinput2" option.
* etc/PROBLEMS: Document some limitations of Xwayland and PGTK.
2022-02-11 06:46:25 +00:00
* Runtime problems on character terminals
Document Bug#5541.
2010-03-19 15:15:27 +00:00
** The meta key does not work on xterm.
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
Document Bug#5541.
2010-03-19 15:15:27 +00:00
Typing M-x rings the terminal bell, and inserts a string like ";120~".
For recent xterm versions (>= 216), Emacs uses xterm's modifyOtherKeys
feature to generate strings for key combinations that are not
otherwise usable. One circumstance in which this can cause problems
is if you have specified the X resource
xterm*VT100.Translations
to contain translations that use the meta key. Then xterm will not
use meta in modified function-keys, which confuses Emacs. To fix
this, you can remove the X resource or put this in your init file:
(xterm-remove-modify-other-keys)
Linux console: don't translate ESC TAB to `backtab' in input-decode-map. This translation happened after the terminfo entry for <shift>TAB in the linux section was changed to kcbt=\E^I in ncurses version 6.3. * lisp/term/linux.el (terminal-init-linux): Add a define-key form to remove the entry for "\e\t" from input-decode-map. * etc/PROBLEMS: Add a new section under "character terminals" about S-TAB wrongly doing the same thing as M-TAB, giving tips about amending the Linux keyboard layout.
2022-05-08 11:39:45 +00:00
** The shift TAB key combination works as meta TAB on a Linux console.
This happens because on your keyboard layout, S-TAB produces the same
keycodes as typing ESC TAB individually. The best way to solve this
is to modify your keyboard layout to produce different codes, and tell
Emacs what these new codes mean.
The current keyboard layout will probably be a .map.gz file somewhere
under /usr/share/keymaps. Identify this file, possibly from a system
initialization file such as /etc/conf.d/keymaps. Run gunzip on it to
decompress it, and amend the entries for keycode 15 to look something
like this:
keycode 15 = Tab
alt keycode 15 = Meta_Tab
shift keycode 15 = F219
string F219 = "\033[4}\011" # Shift+<tab>
After possibly saving this file under a different name, compress it
again using gzip. Amend /etc/conf.d/keyamps, etc., if needed.
Further details can be found in the man page for loadkeys.
Then add the following line near the start of your site-start.el or
.emacs or init.el file:
(define-key input-decode-map "\e[4}\t" 'backtab)
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs spontaneously displays "I-search: " at the bottom of the screen.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This means that Control-S/Control-Q (XON/XOFF) "flow control" is being
used. C-s/C-q flow control is bad for Emacs editors because it takes
away C-s and C-q as user commands. Since editors do not output long
streams of text without user commands, there is no need for a
user-issuable "stop output" command in an editor; therefore, a
properly designed flow control mechanism would transmit all possible
input characters without interference. Designing such a mechanism is
easy, for a person with at least half a brain.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
There are three possible reasons why flow control could be taking place:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
1) Terminal has not been told to disable flow control
2) Insufficient padding for the terminal in use
3) Some sort of terminal concentrator or line switch is responsible
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
First of all, many terminals have a set-up mode which controls whether
they generate XON/XOFF flow control characters. This must be set to
Merge in a few snippets just deleted from faq.texi.
2009-06-16 02:55:46 +00:00
"no XON/XOFF" in order for Emacs to work. (For example, on a VT220
you may select "No XOFF" in the setup menu.) Sometimes there is an
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
escape sequence that the computer can send to turn flow control off
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
and on. If so, perhaps the termcap 'ti' string should turn flow
control off, and the 'te' string should turn it on.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Once the terminal has been told "no flow control", you may find it
needs more padding. The amount of padding Emacs sends is controlled
by the termcap entry for the terminal in use, and by the output baud
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
rate as known by the kernel. The shell command 'stty' will print
your output baud rate; 'stty' with suitable arguments will set it if
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
it is wrong. Setting to a higher speed causes increased padding. If
the results are wrong for the correct speed, there is probably a
problem in the termcap entry. You must speak to a local Unix wizard
to fix this. Perhaps you are just using the wrong terminal type.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
For terminals that lack a "no flow control" mode, sometimes just
giving lots of padding will prevent actual generation of flow control
codes. You might as well try it.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you are really unlucky, your terminal is connected to the computer
through a concentrator which sends XON/XOFF flow control to the
computer, or it insists on sending flow control itself no matter how
much padding you give it. Unless you can figure out how to turn flow
control off on this concentrator (again, refer to your local wizard),
you are screwed! You should have the terminal or concentrator
replaced with a properly designed one. In the mean time, some drastic
measures can make Emacs semi-work.
NBSP as hollow box
2001-01-11 23:09:41 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You can make Emacs ignore C-s and C-q and let the operating system
handle them. To do this on a per-session basis, just type M-x
enable-flow-control RET. You will see a message that C-\ and C-^ are
now translated to C-s and C-q. (Use the same command M-x
enable-flow-control to turn *off* this special mode. It toggles flow
control handling.)
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If C-\ and C-^ are inconvenient for you (for example, if one of them
is the escape character of your terminal concentrator), you can choose
other characters by setting the variables flow-control-c-s-replacement
and flow-control-c-q-replacement. But choose carefully, since all
other control characters are already used by emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
IMPORTANT: if you type C-s by accident while flow control is enabled,
Emacs output will freeze, and you will have to remember to type C-q in
order to continue.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you work in an environment where a majority of terminals of a
certain type are flow control hobbled, you can use the function
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'enable-flow-control-on' to turn on this flow control avoidance scheme
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
automatically. Here is an example:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(enable-flow-control-on "vt200" "vt300" "vt101" "vt131")
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If this isn't quite correct (e.g. you have a mixture of flow-control hobbled
and good vt200 terminals), you can still run enable-flow-control
manually.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
I have no intention of ever redesigning the Emacs command set for the
assumption that terminals use C-s/C-q flow control. XON/XOFF flow
control technique is a bad design, and terminals that need it are bad
merchandise and should not be purchased. Now that X is becoming
widespread, XON/XOFF seems to be on the way out. If you can get some
use out of GNU Emacs on inferior terminals, more power to you, but I
will not make Emacs worse for properly designed systems for the sake
of inferior systems.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Control-S and Control-Q commands are ignored completely.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
For some reason, your system is using brain-damaged C-s/C-q flow
control despite Emacs's attempts to turn it off. Perhaps your
terminal is connected to the computer through a concentrator
that wants to use flow control.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You should first try to tell the concentrator not to use flow control.
If you succeed in this, try making the terminal work without
flow control, as described in the preceding section.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If that line of approach is not successful, map some other characters
into C-s and C-q using keyboard-translate-table. The example above
shows how to do this with C-^ and C-\.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Screen is updated wrong, but only on one kind of terminal.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This could mean that the termcap entry you are using for that
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
terminal is wrong, or it could mean that Emacs has a bug handling
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the combination of features specified for that terminal.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The first step in tracking this down is to record what characters
Emacs is sending to the terminal. Execute the Lisp expression
(open-termscript "./emacs-script") to make Emacs write all
terminal output into the file ~/emacs-script as well; then do
what makes the screen update wrong, and look at the file
and decode the characters using the manual for the terminal.
There are several possibilities:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
1) The characters sent are correct, according to the terminal manual.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
In this case, there is no obvious bug in Emacs, and most likely you
need more padding, or possibly the terminal manual is wrong.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
2) The characters sent are incorrect, due to an obscure aspect
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
of the terminal behavior not described in an obvious way by termcap.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This case is hard. It will be necessary to think of a way for
Emacs to distinguish between terminals with this kind of behavior
and other terminals that behave subtly differently but are
classified the same by termcap; or else find an algorithm for
Emacs to use that avoids the difference. Such changes must be
tested on many kinds of terminals.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
3) The termcap entry is wrong.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
See the file etc/TERMS for information on changes
that are known to be needed in commonly used termcap entries
for certain terminals.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
4) The characters sent are incorrect, and clearly cannot be
right for any terminal with the termcap entry you were using.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is unambiguously an Emacs bug, and can probably be fixed
in termcap.c, tparam.c, term.c, scroll.c, cm.c or dispnew.c.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Control-S and Control-Q commands are ignored completely on a net connection.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some versions of rlogin (and possibly telnet) do not pass flow
control characters to the remote system to which they connect.
On such systems, emacs on the remote system cannot disable flow
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
control on the local system. Sometimes 'rlogin -8' will avoid this problem.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
One way to cure this is to disable flow control on the local host
(the one running rlogin, not the one running rlogind) using the
stty command, before starting the rlogin process. On many systems,
Merge in a few snippets just deleted from faq.texi.
2009-06-16 02:55:46 +00:00
"stty start u stop u" will do this. On some systems, use
* PROBLEMS: Add note about use of backslashes in Windows paths.
2010-07-20 18:32:42 +00:00
"stty -ixon" instead.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some versions of tcsh will prevent even this from working. One way
around this is to start another shell before starting rlogin, and
issue the stty command to disable flow control from that shell.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If none of these methods work, the best solution is to type
M-x enable-flow-control at the beginning of your emacs session, or
if you expect the problem to continue, add a line such as the
following to your .emacs (on the host running rlogind):
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(enable-flow-control-on "vt200" "vt300" "vt101" "vt131")
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
See the entry about spontaneous display of I-search (above) for more info.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Output from Control-V is slow.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
On many bit-map terminals, scrolling operations are fairly slow.
Often the termcap entry for the type of terminal in use fails
to inform Emacs of this. The two lines at the bottom of the screen
before a Control-V command are supposed to appear at the top after
the Control-V command. If Emacs thinks scrolling the lines is fast,
it will scroll them to the top of the screen.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If scrolling is slow but Emacs thinks it is fast, the usual reason is
that the termcap entry for the terminal you are using does not
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
specify any padding time for the 'al' and 'dl' strings. Emacs
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
concludes that these operations take only as much time as it takes to
send the commands at whatever line speed you are using. You must
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
fix the termcap entry to specify, for the 'al' and 'dl', as much
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
time as the operations really take.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Currently Emacs thinks in terms of serial lines which send characters
at a fixed rate, so that any operation which takes time for the
terminal to execute must also be padded. With bit-map terminals
operated across networks, often the network provides some sort of
flow control so that padding is never needed no matter how slow
an operation is. You must still specify a padding time if you want
Emacs to realize that the operation takes a long time. This will
cause padding characters to be sent unnecessarily, but they do
not really cost much. They will be transmitted while the scrolling
is happening and then discarded quickly by the terminal.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Most bit-map terminals provide commands for inserting or deleting
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
multiple lines at once. Define the 'AL' and 'DL' strings in the
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
termcap entry to say how to do these things, and you will have
fast output without wasted padding characters. These strings should
each contain a single %-spec saying how to send the number of lines
to be scrolled. These %-specs are like those in the termcap
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'cm' string.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
You should also define the 'IC' and 'DC' strings if your terminal
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
has a command to insert or delete multiple characters. These
take the number of positions to insert or delete as an argument.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
A 'cs' string to set the scrolling region will reduce the amount
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
of motion you see on the screen when part of the screen is scrolled.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** You type Control-H (Backspace) expecting to delete characters.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Put 'stty dec' in your .login file and your problems will disappear
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
after a day or two.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The choice of Backspace for erasure was based on confusion, caused by
the fact that backspacing causes erasure (later, when you type another
character) on most display terminals. But it is a mistake. Deletion
of text is not the same thing as backspacing followed by failure to
overprint. I do not wish to propagate this confusion by conforming
to it.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
For this reason, I believe 'stty dec' is the right mode to use,
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
and I have designed Emacs to go with that. If there were a thousand
other control characters, I would define Control-h to delete as well;
but there are not very many other control characters, and I think
that providing the most mnemonic possible Help character is more
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
important than adapting to people who don't use 'stty dec'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you are obstinate about confusing buggy overprinting with deletion,
you can redefine Backspace in your .emacs file:
(global-set-key "\b" 'delete-backward-char)
You can probably access help-command via f1.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Colors are not available on a tty or in xterm.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Emacs 21 supports colors on character terminals and terminal
emulators, but this support relies on the terminfo or termcap database
entry to specify that the display supports color. Emacs looks at the
"Co" capability for the terminal to find out how many colors are
supported; it should be non-zero to activate the color support within
Emacs. (Most color terminals support 8 or 16 colors.) If your system
uses terminfo, the name of the capability equivalent to "Co" is
"colors".
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
In addition to the "Co" capability, Emacs needs the "op" (for
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
"original pair") capability, which tells how to switch the terminal
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
back to the default foreground and background colors. Emacs will not
use colors if this capability is not defined. If your terminal entry
doesn't provide such a capability, try using the ANSI standard escape
sequence \E[00m (that is, define a new termcap/terminfo entry and make
it use your current terminal's entry plus \E[00m for the "op"
capability).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Finally, the "NC" capability (terminfo name: "ncv") tells Emacs which
attributes cannot be used with colors. Setting this capability
incorrectly might have the effect of disabling colors; try setting
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
this capability to '0' (zero) and see if that helps.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Emacs uses the database entry for the terminal whose name is the value
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
of the environment variable TERM. With 'xterm', a common terminal
entry that supports color is 'xterm-color', so setting TERM's value to
'xterm-color' might activate the color support on an xterm-compatible
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
emulator.
#
1999-10-03 12:39:42 +00:00
Change release version from 21.4 to 22.1 throughout. Change development version from 21.3.50 to 22.0.50.
2005-02-09 15:50:47 +00:00
Beginning with version 22.1, Emacs supports the --color command-line
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
option which may be used to force Emacs to use one of a few popular
modes for getting colors on a tty. For example, --color=ansi8 sets up
for using the ANSI-standard escape sequences that support 8 colors.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some modes do not use colors unless you turn on the Font-lock mode.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Some people have long ago set their '~/.emacs' files to turn on
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Font-lock on X only, so they won't see colors on a tty. The
recommended way of turning on Font-lock is by typing "M-x
global-font-lock-mode RET" or by customizing the variable
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'global-font-lock-mode'.
#
1999-10-03 12:39:42 +00:00
; Describe problems with 'screen' and COLORTERM variable * etc/PROBLEMS: Describe the issue with 'screen' and COLORTERM=truecolor. (Bug#62237)
2023-03-23 08:03:04 +00:00
** Colors are not available or messed up on TTY frames inside 'screen'.
This can happen if you have COLORTERM=truecolor defined in the
environment when Emacs starts, but your version of 'screen' doesn't
actually support 24-bit true colors.
The COLORTERM environment variable is supposed to be set to the value
"truecolor" only if the terminal used by Emacs actually supports true
color. Emacs does not have any means of verifying that this support
is available, it takes the fact that the variable is defined to this
value as an indication that true color support is, in fact, available,
and uses color setting commands that COLORTERM=truecolor presumes,
bypassing the usual Terminfo capabilities related to colors.
Some text-mode terminals, such as GNOME Terminal, are known to set
this environment variable, supposedly to announce their own support
for true color; however the setting is then inherited by any other
terminal emulators started from such a terminal, even though those
other terminal emulators might not themselves support true color using
the same commands as Emacs uses when it sees COLORTERM=truecolor.
The solution is to either upgrade to a newer version of 'screen'
(version 5.x or later reportedly supports true color), or to unset the
COLORTERM variable before starting 'screen', and let Emacs use the
color support provided by the terminal emulator as defined in the
Terminfo database.
Doc fix for xterm-extra-capabilities * lisp/term/xterm.el (xterm-extra-capabilities): Doc fix. * etc/PROBLEMS: Mention xterm-extra-capabilities issue.
2012-03-31 20:22:04 +00:00
** Unexpected characters inserted into the buffer when you start Emacs.
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
See e.g. <URL:https://debbugs.gnu.org/11129>
Doc fix for xterm-extra-capabilities * lisp/term/xterm.el (xterm-extra-capabilities): Doc fix. * etc/PROBLEMS: Mention xterm-extra-capabilities issue.
2012-03-31 20:22:04 +00:00
This can happen when you start Emacs in -nw mode in an Xterm.
For example, in the *scratch* buffer, you might see something like:
0;276;0c
This is more likely to happen if you are using Emacs over a slow
connection, and begin typing before Emacs is ready to respond.
This occurs when Emacs tries to query the terminal to see what
capabilities it supports, and gets confused by the answer.
To avoid it, set xterm-extra-capabilities to a value other than
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'check' (the default). See that variable's documentation (in
Doc fix for xterm-extra-capabilities * lisp/term/xterm.el (xterm-extra-capabilities): Doc fix. * etc/PROBLEMS: Mention xterm-extra-capabilities issue.
2012-03-31 20:22:04 +00:00
term/xterm.el) for more details.
; Describe PROBLEMS with Unicode display on some TTYs * etc/TODO: Describe problems with Unicode display on some text terminals. (Bug#50865) (Bug#50983)
2021-10-04 16:29:34 +00:00
** Incorrect or corrupted display of some Unicode characters
*** Linux console problems with double-width characters
Recommend using fbterm in the Linux console. * doc/misc/efaq.texi (Emacs in a Linux console): New node. (Common requests): Entry for the new node. * etc/PROBLEMS (Linux console problems...): Mention the new FAQ node.
2022-08-29 16:06:37 +00:00
If possible, we recommend running Emacs inside fbterm, when in a Linux
console (see the node "Emacs in a Linux console" in the Emacs FAQ).
Most Unicode characters should then be displayed correctly.
If that is not possible, the following may be useful to alleviate the
problem of displaying Unicode characters in a raw console.
; Describe PROBLEMS with Unicode display on some TTYs * etc/TODO: Describe problems with Unicode display on some text terminals. (Bug#50865) (Bug#50983)
2021-10-04 16:29:34 +00:00
The Linux console declares UTF-8 encoding, but supports only a limited
number of Unicode characters, and can cause Emacs produce corrupted or
garbled display with some unusual characters and sequences. Emacs 28
and later by default disables 'auto-composition-mode' on this console,
for that reason, but this might not be enough. One known problem with
this console is that zero-width and double-width characters are
displayed incorrectly (as a single-column characters), and that causes
the cursor to be out of sync with the actual display.
One way of working around this is to use the display-table feature to
display the problematic characters as some other, less problematic
ones. Here's an example of setting up the standard display table to
show the U+01F64F PERSON WITH FOLDED HANDS character as a diamond with
a special face:
(or standard-display-table
(setq standard-display-table (make-display-table)))
(aset standard-display-table
#x1f64f (vector (make-glyph-code #xFFFD 'escape-glyph)))
Similar setup can be done with any other problematic character. If
the console cannot even display the U+FFFD REPLACEMENT CHARACTER, you
can use some ASCII character instead, like '?'; it will stand out due
to the 'escape-glyph' face. The disadvantage of this method is that
all such characters will look the same on display, and the only way of
knowing what is the real codepoint in the buffer is to go to the
character and type "C-u C-x =".
*** Messed-up display on the Kitty text terminal
This terminal has its own peculiar ideas about display of unusual
characters. For example, it hides the U+00AD SOFT HYPHEN characters
on display, which messes up Emacs cursor addressing, since Emacs
doesn't know these characters are effectively treated as zero-width
characters.
One way of working around such "hidden" characters is to tell Emacs to
display them as zero-width:
(aset glyphless-char-display #xAD 'zero-width)
Another possibility is to use display-table to display SOFT HYPHEN as
a regular ASCII dash character '-':
(or standard-display-table
(setq standard-display-table (make-display-table)))
(aset standard-display-table
#xAD (vector (make-glyph-code ?- 'escape-glyph)))
Backward compatibility option for 'nobreak-char-display' * src/xdisp.c (syms_of_xdisp) <nobreak-char-ascii-display>: New variable. (get_next_display_element): If 'nobreak-char-ascii-display' is non-nil, display non-ASCII space and hyphen characters as their ASCII equivalents. (Bug#50983) * etc/NEWS: * etc/PROBLEMS: Mention 'nobreak-char-ascii-display'.
2021-10-05 14:12:49 +00:00
Another workaround is to set 'nobreak-char-ascii-display' to a non-nil
value, which will cause any non-ASCII space and hyphen characters to
be displayed as their ASCII counterparts, with a special face.
; Describe PROBLEMS with Unicode display on some TTYs * etc/TODO: Describe problems with Unicode display on some text terminals. (Bug#50865) (Bug#50983)
2021-10-04 16:29:34 +00:00
Kitty also differs from many other character terminals in how it
handles character compositions. As one example, Emoji sequences that
begin with a non-Emoji character and end in U+FE0F VARIATION SELECTOR
16 should be composed into an Emoji glyph; Kitty assumes that all such
Emoji glyphs have 2-column width, whereas Emacs and many other text
terminals display them as 1-column glyphs. Again, this causes cursor
addressing to get out of sync and eventually messes up the display.
One possible workaround for problems caused by character composition
* etc/PROBLEMS: Problems with Alacritty and Emoji. (Bug#56952)
2022-08-06 16:19:01 +00:00
is to turn off 'auto-composition-mode' on Kitty terminals, e.g. by
customizing the 'auto-composition-mode' variable to have as value a
string that the 'tty-type' function returns on those terminals.
; Describe PROBLEMS with Unicode display on some TTYs * etc/TODO: Describe problems with Unicode display on some text terminals. (Bug#50865) (Bug#50983)
2021-10-04 16:29:34 +00:00
* etc/PROBLEMS: Problems with Alacritty and Emoji. (Bug#56952)
2022-08-06 16:19:01 +00:00
*** Display artifacts on the Alacritty text terminal
This terminal is known to cause problems with Emoji sequences: when
displaying them, the Emacs text-mode frame could show gaps and other
visual artifacts.
The solution is to disable 'auto-composition-mode' on these
terminals, for example, like this:
(setq auto-composition-mode "alacritty")
This disables 'auto-composition-mode' on frames that display on
terminals of this type.
; Describe PROBLEMS with Unicode display on some TTYs * etc/TODO: Describe problems with Unicode display on some text terminals. (Bug#50865) (Bug#50983)
2021-10-04 16:29:34 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Runtime problems specific to individual Unix variants
Document problems with DJGPP and NT's `redir' program.
2001-04-25 21:33:25 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** GNU/Linux
Document problems with DJGPP and NT's `redir' program.
2001-04-25 21:33:25 +00:00
* etc/PROBLEMS: Mention profiler-report bug (Bug#34235).
2019-02-02 01:58:05 +00:00
*** GNU/Linux: profiler-report outputs nothing.
A few versions of the Linux kernel have timer bugs that break CPU
* etc/PROBLEMS: Amend entry for profiler bug #34235 to mention kernel 4.14.97
2019-02-03 11:38:19 +00:00
profiling; see Bug#34235. To fix the problem, upgrade to one of the
kernel versions 4.14.97, 4.19.19, or 4.20.6, or later.
* etc/PROBLEMS: Mention profiler-report bug (Bug#34235).
2019-02-02 01:58:05 +00:00
Linux kernel 2.6.10 may corrupt process output. Warn that using CVS+SSH may corrupt files, include work-around.
2005-06-08 12:13:32 +00:00
*** GNU/Linux: Remote access to CVS with SSH causes file corruption.
If you access a remote CVS repository via SSH, files may be corrupted
due to bad interaction between CVS, SSH, and libc.
To fix the problem, save the following script into a file, make it
executable, and set CVS_RSH environment variable to the file name of
the script:
#!/bin/bash
exec 2> >(exec cat >&2 2>/dev/null)
exec ssh "$@"
* etc/PROBLEMS: Add note about svn+ssh. (Bug#7791)
2011-01-18 02:31:59 +00:00
*** GNU/Linux: Truncated svn annotate output with SSH.
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
https://debbugs.gnu.org/7791
* etc/PROBLEMS: Add note about svn+ssh. (Bug#7791)
2011-01-18 02:31:59 +00:00
The symptoms are: you are accessing a svn repository over SSH.
You use vc-annotate on a large (several thousand line) file, and the
result is truncated around the 1000 line mark. It works fine with
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
other access methods (e.g. http), or from outside Emacs.
* etc/PROBLEMS: Add note about svn+ssh. (Bug#7791)
2011-01-18 02:31:59 +00:00
This may be a similar libc/SSH issue to the one mentioned above for CVS.
A similar workaround seems to be effective: create a script with the
same contents as the one used above for CVS_RSH, and set the SVN_SSH
environment variable to point to it.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** GNU/Linux: After upgrading to a newer version of Emacs,
the Meta key stops working.
More about long file names and the MSDOS port.
2001-06-24 13:16:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This was reported to happen on a GNU/Linux system distributed by
Mandrake. The reason is that the previous version of Emacs was
modified by Mandrake to make the Alt key act as the Meta key, on a
keyboard where the Windows key is the one which produces the Meta
modifier. A user who started using a newer version of Emacs, which
was not hacked by Mandrake, expected the Alt key to continue to act as
Meta, and was astonished when that didn't happen.
More about long file names and the MSDOS port.
2001-06-24 13:16:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to find out what key on your keyboard produces the Meta
modifier, and use that key instead. Try all of the keys to the left
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
and to the right of the space bar, together with the 'x' key, and see
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
which combination produces "M-x" in the echo area. You can also use
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
the 'xmodmap' utility to show all the keys which produce a Meta
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
modifier:
#
1999-10-03 12:39:42 +00:00
Doc fixes for fclist and grep A newline is needed between two fc-list calls. egrep and fgrep have been withdrawn from POSIX, so document grep -E and grep -F instead.
2016-05-05 19:48:33 +00:00
xmodmap -pk | grep -Ei "meta|alt"
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A more convenient way of finding out which keys produce a Meta modifier
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
is to use the 'xkbprint' utility, if it's available on your system:
More about long file names and the MSDOS port.
2001-06-24 13:16:33 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xkbprint 0:0 /tmp/k.ps
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
This produces a PostScript file '/tmp/k.ps' with a picture of your
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
keyboard; printing that file on a PostScript printer will show what
keys can serve as Meta.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
The 'xkeycaps' also shows a visual representation of the current
; Grammar fixes ("allow to" et al) Ref: https://lists.gnu.org/r/emacs-devel/2016-01/msg01598.html https://lists.gnu.org/r/emacs-devel/2016-01/msg01465.html
2023-09-17 14:49:21 +00:00
keyboard settings. It also allows modifying them.
#
1999-10-03 12:39:42 +00:00
Fix typo.
2006-06-03 21:55:47 +00:00
*** GNU/Linux: slow startup on Linux-based GNU systems.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
People using systems based on the Linux kernel sometimes report that
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
startup takes 10 to 15 seconds longer than 'usual'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is because Emacs looks up the host name when it starts.
Normally, this takes negligible time; the extra delay is due to
improper system configuration. This problem can occur for both
networked and non-networked machines.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Here is how to fix the configuration. It requires being root.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** Networked Case.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
First, make sure the files '/etc/hosts' and '/etc/host.conf' both
exist. The first line in the '/etc/hosts' file should look like this
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(replace HOSTNAME with your host name):
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
127.0.0.1 HOSTNAME
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Also make sure that the '/etc/host.conf' files contains the following
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
lines:
Document failure to start due to old version of ncurses.
2002-05-18 11:10:35 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
order hosts, bind
multi on
Clarify "can't open termcap database" item.
2002-10-25 05:58:04 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Any changes, permanent and temporary, to the host name should be
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
indicated in the '/etc/hosts' file, since it acts a limited local
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
database of addresses and names (e.g., some SLIP connections
dynamically allocate ip addresses).
Document failure to start due to old version of ncurses.
2002-05-18 11:10:35 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** Non-Networked Case.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution described in the networked case applies here as well.
However, if you never intend to network your machine, you can use a
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
simpler solution: create an empty '/etc/host.conf' file. The command
'touch /etc/host.conf' suffices to create the file. The '/etc/hosts'
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
file is not necessary with this approach.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** GNU/Linux: Emacs on a tty switches the cursor to large blinking block.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This was reported to happen on some GNU/Linux systems which use
ncurses version 5.0, but could be relevant for other versions as well.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
These versions of ncurses come with a 'linux' terminfo entry, where
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the "cvvis" capability (termcap "vs") is defined as "\E[?25h\E[?8c"
(show cursor, change size). This escape sequence switches on a
blinking hardware text-mode cursor whose size is a full character
cell. This blinking cannot be stopped, since a hardware cursor
always blinks.
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A work-around is to redefine the "cvvis" capability so that it
enables a *software* cursor. The software cursor works by inverting
the colors of the character at point, so what you see is a block
cursor that doesn't blink. For this to work, you need to redefine
the "cnorm" capability as well, so that it operates on the software
cursor instead of the hardware cursor.
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To this end, run "infocmp linux > linux-term", edit the file
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'linux-term' to make both the "cnorm" and "cvvis" capabilities send
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the sequence "\E[?25h\E[?17;0;64c", and then run "tic linux-term" to
produce a modified terminfo entry.
Clarify the causes for "misalignment" error messages in Ispell.
2001-06-13 12:31:09 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Alternatively, if you want a blinking underscore as your Emacs cursor,
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
set the 'visible-cursor' variable to nil in your ~/.emacs:
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
(setq visible-cursor nil)
Still other way is to change the "cvvis" capability to send the
"\E[?25h\E[?0c" command.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** FreeBSD
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** FreeBSD: Getting a Meta key on the console.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
By default, neither Alt nor any other key acts as a Meta key on
FreeBSD, but this can be changed using kbdcontrol(1). Dump the
current keymap to a file with the command
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
$ kbdcontrol -d >emacs.kbd
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Edit emacs.kbd, and give the key you want to be the Meta key the
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
definition 'meta'. For instance, if your keyboard has a "Windows"
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
key with scan code 105, change the line for scan code 105 in emacs.kbd
to look like this
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
105 meta meta meta meta meta meta meta meta O
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
to make the Windows key the Meta key. Load the new keymap with
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
$ kbdcontrol -l emacs.kbd
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** HP-UX
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** HP/UX : Shell mode gives the message, "`tty`: Ambiguous".
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
christos@theory.tn.cornell.edu says:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The problem is that in your .cshrc you have something that tries to
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
execute 'tty'. If you are not running the shell on a real tty then
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
tty will print "not a tty". Csh expects one word in some places,
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
but tty is giving it back 3.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to add a pair of quotes around `tty` to make it a single
word:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
if (`tty` == "/dev/console")
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
should be changed to:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
if ("`tty`" == "/dev/console")
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Even better, move things that set up terminal sections out of .cshrc
and into .login.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** HP/UX: 'Pid xxx killed due to text modification or page I/O error'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
On HP/UX, you can get that error when the Emacs executable is on an NFS
file system. HP/UX responds this way if it tries to swap in a page and
does not get a response from the server within a timeout whose default
value is just ten seconds.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If this happens to you, extend the timeout period.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** HP/UX: The right Alt key works wrong on German HP keyboards (and perhaps
other non-English HP keyboards too).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is because HP-UX defines the modifiers wrong in X. Here is a
shell script to fix the problem; be sure that it is run after VUE
configures the X server.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap 2> /dev/null - << EOF
keysym Alt_L = Meta_L
keysym Alt_R = Meta_R
EOF
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap - << EOF
clear mod1
keysym Mode_switch = NoSymbol
add mod1 = Meta_L
keysym Meta_R = Mode_switch
add mod2 = Mode_switch
EOF
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** HP/UX: Emacs does not recognize the AltGr key.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To fix this, set up a file ~/.dt/sessions/sessionetc with executable
rights, containing this text:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
--------------------------------
xmodmap 2> /dev/null - << EOF
keysym Alt_L = Meta_L
keysym Alt_R = Meta_R
EOF
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap - << EOF
clear mod1
keysym Mode_switch = NoSymbol
add mod1 = Meta_L
keysym Meta_R = Mode_switch
add mod2 = Mode_switch
EOF
--------------------------------
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** HP/UX 11.0: Emacs makes HP/UX 11.0 crash.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is a bug in HPUX; HPUX patch PHKL_16260 is said to fix it.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** AIX
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** AIX: Trouble using ptys.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
People often install the pty devices on AIX incorrectly.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Use 'smit pty' to reinstall them properly.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** AIXterm: Your Delete key sends a Backspace to the terminal.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to include in your .Xdefaults the lines:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*aixterm.Translations: #override <Key>BackSpace: string(0x7f)
aixterm*ttyModes: erase ^?
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This makes your Backspace key send DEL (ASCII 127).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** AIX: If linking fails because libXbsd isn't found, check if you
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
are compiling with the system's 'cc' and CFLAGS containing '-O5'. If
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
so, you have hit a compiler bug. Please make sure to re-configure
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Emacs so that it isn't compiled with '-O5'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Solaris
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
We list bugs in current versions here. See also the section on legacy
systems.
#
1999-10-03 12:39:42 +00:00
Document problems with /bin/sh on Solaris 10 * etc/PROBLEMS (Solaris): Document problems with '/bin/sh'. Suggested by Paul Eggert <eggert@cs.ucla.edu>. (Bug#63067)
2023-04-26 06:39:35 +00:00
*** On Solaris 10, running 'configure' with "/bin/sh" produces errors.
The "/bin/sh" shell on Solaris is an ancient and non-POSIX shell, so
we recommend not to use it. The Emacs 'configure' script should find
an appropriate shell and re-exec itself with that shell, unless you
force it to use "/bin/sh" by using "CONFIG_SHELL=/bin/sh" on the
'configure' command line. So either don't use CONFIG_SHELL, or, if
you'd rather pick the shell yourself, choose "/bin/bash" or "/bin/ksh"
or "/usr/xpg4/bin/sh" instead.
Mention further crashes on Solaris 10
2022-06-26 22:23:20 +00:00
*** On Solaris 10 sparc, Emacs crashes during the build while saving state.
This was observed for Emacs 28.1 on Solaris 10 32-bit sparc, with
Oracle Developer Studio 12.6 (Sun C 5.15). The failure was intermittent,
and running GNU Make a second time would typically finish the build.
* etc/PROBLEMS: Document Bug#26638.
2017-10-02 06:15:36 +00:00
*** On Solaris 10, Emacs crashes during the build process.
Simplify Solaris port This should avoid some configuration confusion as exemplified by Jeffrey Walton’s recent bug report (Bug#42675). * configure.ac (opsys): Simplify Solaris configuration by not worrying about Solaris 9 and earlier, as they are no longer supported by the Solaris developers. This should support Walton’s ‘./configure --build=x86_64-sun-solaris’. Instead of bothering with ‘opsys=sol2-6’ and ‘opsys=sol2-10’, just use ‘opsys=solaris’. All uses changed. (emacs_check_sunpro_c): Remove unused var. * doc/misc/tramp.texi (Remote programs): * etc/MACHINES, etc/PROBLEMS: Modernize PATH for Oracle Developer Studio. * etc/PROBLEMS: Move Solaris-related problems to legacy area, except those that are still relevant.
2020-08-06 00:36:50 +00:00
(This applies only with './configure --with-unexec=yes', which is rare.)
* etc/PROBLEMS: Document Bug#26638.
2017-10-02 06:15:36 +00:00
This was reported for Emacs 25.2 on i386-pc-solaris2.10 with Sun
Studio 12 (Sun C 5.9) and with Oracle Developer Studio 12.6 (Sun C
5.15), and intermittently for sparc-sun-solaris2.10 with Oracle
Developer Studio 12.5 (Sun C 5.14). Disabling compiler optimization
seems to fix the bug, as does upgrading the Solaris 10 operating
system to Update 11. The cause of the bug is unknown: it may be that
Emacs's archaic memory-allocation scheme is not compatible with
slightly-older versions of Solaris and/or Oracle Studio, or it may be
something else. Since the cause is not known, possibly the bug is
still present in newer versions of Emacs, Oracle Studio, and/or
Solaris. See Bug#26638.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** On Solaris, C-x doesn't get through to Emacs when you use the console.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is a Solaris feature (at least on Intel x86 cpus). Type C-r
C-r C-t, to toggle whether C-x gets through to Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Runtime problems specific to MS-Windows
#
1999-10-03 12:39:42 +00:00
; * etc/PROBLEMS: Entry about crashes due to anti-virus (bug#57880).
2023-06-08 05:30:18 +00:00
** Emacs with native compilation crashes/signals errors accessing *.eln files
This is known to be caused by some flavors of Windows anti-virus
software. The problem could manifest itself in several ways:
. Emacs crashes when it tries to load certain *.eln files
. Emacs signals an error when it tries to load some *.eln files,
claiming they are "not GPL compatible"
. Emacs crashes during GC when it calls unload_comp_unit
This was specifically reported to happen with *.eln files in
directories under the C:\Users directory, which is where Emacs on
Windows places the emulated HOME directory, and thus also the
~/.emacs.d/eln-cache directory holding the *.eln files compiled during
Emacs sessions (as opposed to those that came precompiled and were
installed with the rest of Emacs distribution).
If you cannot disable such anti-virus software or switch to another
one, you could use the following workarounds:
. Define the HOME environment variable to point to a directory
outside of the C:\Users tree, then copy/move your ~/.emacs.d
directory to that new home directory.
. Move all the *.eln files from ~/.emacs.d/eln-cache to a directory
out of the C:\Users tree, and customize Emacs to use that
; Grammar fixes ("allow to" et al) Ref: https://lists.gnu.org/r/emacs-devel/2016-01/msg01598.html https://lists.gnu.org/r/emacs-devel/2016-01/msg01465.html
2023-09-17 14:49:21 +00:00
directory for *.eln files. This requires calling the function
; * etc/PROBLEMS: Entry about crashes due to anti-virus (bug#57880).
2023-06-08 05:30:18 +00:00
startup-redirect-eln-cache in your init file, to force Emacs to
write *.eln files compiled at run time to that directory.
. Delete all *.eln files in your ~/.emacs.d/eln-cache directory, and
then disable run-time native compilation. To disable native
compilation, set the variables native-comp-jit-compilation and
native-comp-enable-subr-trampolines to nil.
. Install Emacs built without native compilation.
With any of the above methods, you'd need to restart Emacs (and
preferably also your Windows system) after making the changes, to have
them take effect.
; * etc/PROBLEMS: Mention MinGW problems with -D_FORTIFY_SOURCE=2.
2023-07-01 07:01:59 +00:00
*** MinGW64 Emacs built with -D_FORTIFY_SOURCE=2 misbehaves
Using this preprocessor option when building Emacs with MinGW64
produces an Emacs binary that behaves incorrectly. In particular,
running asynchronous shell command, e.g., with 'M-&', causes Emacs to
use 100% of CPU and start allocating a lot of memory. For the same
reason, asynchronous native-compilation will hang Emacs (which could
wedge Emacs during startup, if your Emacs is configured to download
and install packages via package.el every startup). 'M-x run-python',
'M-x shell', and similar commands also hang. Other commands might
also cause high CPU and/or memory usage.
The workaround is to rebuild Emacs without the -D_FORTIFY_SOURCE=2
option.
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Emacs on Windows 9X requires UNICOWS.DLL
If that DLL is not available, Emacs will display an error dialog
stating its absence, and refuse to run.
This is because Emacs 24.4 and later uses functions whose non-stub
implementation is only available in UNICOWS.DLL, which implements the
Microsoft Layer for Unicode on Windows 9X, or "MSLU". This article on
MSDN:
; Update some links to HTTPS and note some broken links
2021-09-27 10:40:04 +00:00
https://web.archive.org/web/20151224032644/https://msdn.microsoft.com/en-us/goglobal/bb688166.aspx
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
includes a short description of MSLU and a link where it can be
downloaded.
etc/PROBLEMS: Update problems specific to MS-Windows.
2014-07-12 09:08:41 +00:00
** Emacs refuses to start on Windows 9X because ctime64 function is missing
This is a sign that Emacs was compiled with MinGW runtime version
4.0.x or later. These versions of runtime call in their startup code
the ctime64 function, which does not exist in MSVCRT.DLL, the C
runtime shared library, distributed with Windows 9X.
A workaround is to build Emacs with MinGW runtime 3.x (the latest
version is 3.20).
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** A few seconds delay is seen at startup and for many file operations
This happens when the Net Logon service is enabled. During Emacs
startup, this service issues many DNS requests looking up for the
Windows Domain Controller. When Emacs accesses files on networked
drives, it automatically logs on the user into those drives, which
again causes delays when Net Logon is running.
The solution seems to be to disable Net Logon with this command typed
at the Windows shell prompt:
net stop netlogon
To start the service again, type "net start netlogon". (You can also
stop and start the service from the Computer Management application,
accessible by right-clicking "My Computer" or "Computer", selecting
"Manage", then clicking on "Services".)
Another update of MS-Windows entries in etc/PROBLEMS.
2014-02-21 16:47:04 +00:00
** Emacs crashes when exiting the Emacs session
This was reported to happen when some optional DLLs, such as those
Mention zlib1.dll as a potential reason for libgcc-induced crashes.
2014-11-26 15:54:24 +00:00
used for displaying images or the GnuTLS library or zlib compression
library, which are loaded on-demand, have a runtime dependency on the
libgcc DLL, libgcc_s_dw2-1.dll. The reason seems to be a bug in
libgcc which rears its ugly head whenever the libgcc DLL is loaded
after Emacs has started.
Another update of MS-Windows entries in etc/PROBLEMS.
2014-02-21 16:47:04 +00:00
One solution for this problem is to find an alternative build of the
same optional library that does not depend on the libgcc DLL.
Another possibility is to rebuild Emacs with the -shared-libgcc
switch, which will force Emacs to load libgcc_s_dw2-1.dll on startup,
ahead of any optional DLLs loaded on-demand later in the session.
Document the behavior of file selection dialogs on Windows 7 (bug #17950). etc/PROBLEMS: Mention the problem from bug #17950. src/w32fns.c (Fx_file_dialog): Mention in the doc string the behavior on Windows 7 and later when the function is repeatedly invoked with the same value of DIR. src/xfns.c (Fx_file_dialog) [USE_MOTIF, USE_GTK]: Update the doc string to match the one in w32fns.c.
2014-07-12 09:25:29 +00:00
** File selection dialog opens in incorrect directories
Invoking the file selection dialog on Windows 7 or later shows a
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
directory that is different from what was passed to 'read-file-name'
or 'x-file-dialog' via their arguments.
Document the behavior of file selection dialogs on Windows 7 (bug #17950). etc/PROBLEMS: Mention the problem from bug #17950. src/w32fns.c (Fx_file_dialog): Mention in the doc string the behavior on Windows 7 and later when the function is repeatedly invoked with the same value of DIR. src/xfns.c (Fx_file_dialog) [USE_MOTIF, USE_GTK]: Update the doc string to match the one in w32fns.c.
2014-07-12 09:25:29 +00:00
This is due to a deliberate change in behavior of the file selection
dialogs introduced in Windows 7. It is explicitly described in the
MSDN documentation of the GetOpenFileName API used by Emacs to pop up
the file selection dialog. For the details, see
; Update some links to HTTPS and note some broken links
2021-09-27 10:40:04 +00:00
https://msdn.microsoft.com/en-us/library/windows/desktop/ms646839%28v=vs.85%29.aspx
Document the behavior of file selection dialogs on Windows 7 (bug #17950). etc/PROBLEMS: Mention the problem from bug #17950. src/w32fns.c (Fx_file_dialog): Mention in the doc string the behavior on Windows 7 and later when the function is repeatedly invoked with the same value of DIR. src/xfns.c (Fx_file_dialog) [USE_MOTIF, USE_GTK]: Update the doc string to match the one in w32fns.c.
2014-07-12 09:25:29 +00:00
The dialog shows the last directory in which the user selected a file
in a previous invocation of the dialog with the same initial
directory.
You can reset this "memory" of that directory by invoking the file
selection dialog with a different initial directory.
* PROBLEMS (Windows): Add entry about TCC/4NT and App Paths keys.
2009-01-28 23:44:12 +00:00
** PATH can contain unexpanded environment variables
Old releases of TCC (version 9) and 4NT (up to version 8) do not correctly
expand App Paths entries of type REG_EXPAND_SZ. When Emacs is run from TCC
and such an entry exists for emacs.exe, exec-path will contain the
unexpanded entry. This has been fixed in TCC 10. For more information,
see bug#2062.
Mention trouble with XKeymacs and the Windows keys.
2009-01-24 20:39:10 +00:00
** Setting w32-pass-rwindow-to-system and w32-pass-lwindow-to-system to nil
does not prevent the Start menu from popping up when the left or right
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
"Windows" key is pressed.
Mention trouble with XKeymacs and the Windows keys.
2009-01-24 20:39:10 +00:00
This was reported to happen when XKeymacs is installed. At least with
XKeymacs Version 3.47, deactivating XKeymacs when Emacs is active is
not enough to avoid its messing with the keyboard input. Exiting
XKeymacs completely is reported to solve the problem.
* etc/PROBLEMS: Document problems with pasting on MS-Windows
2015-09-26 07:25:58 +00:00
** Pasting from Windows clipboard into Emacs doesn't work.
This was reported to be the result of an anti-virus software blocking
the clipboard-related operations when a Web browser is open, for
security reasons. The solution is to close the Web browser while
working in Emacs, or to add emacs.exe to the list of applications that
are allowed to use the clipboard when the Web browser is open.
Describe known problems with pinning Emacs to taskbar * etc/PROBLEMS: Describe the problem with pinning Emacs to taskbar on Windows 10. For the details, see the discussion starting at http://lists.gnu.org/archive/html/help-emacs-windows/2015-09/msg00000.html.
2015-10-30 10:28:00 +00:00
** "Pinning" Emacs to the taskbar doesn't work on Windows 10
"Doesn't work" here means that if you invoke Emacs by clicking on the
pinned icon, a separate button appears on the taskbar, instead of the
expected effect of the icon you clicked on being converted to that
button.
; Update the description of Windows 10 pinned icon issue * etc/PROBLEMS: Mention that the issue was fixed in later Windows 10 builds.
2015-11-20 09:08:40 +00:00
This is due to a bug in early versions of Windows 10, reportedly fixed
in build 1511 of Windows 10 (a.k.a. "Windows 10 SP1"). If you cannot
upgrade, read the work-around described below.
Describe known problems with pinning Emacs to taskbar * etc/PROBLEMS: Describe the problem with pinning Emacs to taskbar on Windows 10. For the details, see the discussion starting at http://lists.gnu.org/archive/html/help-emacs-windows/2015-09/msg00000.html.
2015-10-30 10:28:00 +00:00
First, be sure to edit the Properties of the pinned icon to invoke
runemacs.exe, not emacs.exe. (The latter will cause an extra cmd
window to appear when you invoke Emacs from the pinned icon.)
But the real cause of the problem is the fact that the pinned icon
(which is really a shortcut in a special directory) lacks a unique
application-defined Application User Model ID (AppUserModelID) that
identifies the current process to the taskbar. This identifier allows
an application to group its associated processes and windows under a
single taskbar button. Emacs on Windows specifies a unique
AppUserModelID when it starts, but Windows 10, unlike previous
versions of MS-Windows, does not propagate that ID to the pinned icon.
To work around this, use some utility, such as 'win7appid', to set the
AppUserModelID of the pinned icon to the string "Gnu.Emacs". The
shortcut files corresponding to icons you pinned are stored by Windows
in the following subdirectory of your user's directory (by default
C:\Users\<UserName>\):
AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar
Look for the file 'emacs.lnk' there.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Emacs exits with "X protocol error" when run with an X server for MS-Windows.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A certain X server for Windows had a bug which caused this.
Supposedly the newer 32-bit version of this server doesn't have the
problem.
Trailing whitespace deleted.
2003-02-04 14:56:31 +00:00
bug #719
2008-08-16 03:41:26 +00:00
** Emacs crashes when opening a file with a UNC path and rails-mode is loaded.
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
Loading rails-mode seems to interfere with UNC path handling. This has been
bug #719
2008-08-16 03:41:26 +00:00
reported as a bug against both Emacs and rails-mode, so look for an updated
rails-mode that avoids this crash, or avoid using UNC paths if using
rails-mode.
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** M-x term does not work on MS-Windows.
Added note about create-fontset-from-ascii-font problem on MS-Windows.
2005-10-25 21:28:54 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
TTY emulation on Windows is undocumented, and programs such as stty
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
which are used on POSIX platforms to control tty emulation do not
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
exist for native windows terminals.
M-x term does not work on Windows.
2008-03-17 23:34:55 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Using create-fontset-from-ascii-font or the --font startup parameter
Added note about create-fontset-from-ascii-font problem on MS-Windows.
2005-10-25 21:28:54 +00:00
with a Chinese, Japanese or Korean font leads to display problems.
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
Use a Latin-only font as your default font. If you want control over
Added note about create-fontset-from-ascii-font problem on MS-Windows.
2005-10-25 21:28:54 +00:00
which font is used to display Chinese, Japanese or Korean character,
use create-fontset-from-fontset-spec to define a fontset.
#
1999-10-03 12:39:42 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Frames are not refreshed while dialogs or menus are displayed
This means no redisplay while the File or Font dialog or a pop-up menu
is displayed. This also means tooltips with help text for pop-up
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
menus are not displayed at all (except in a TTY session, where the help
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
text is shown in the echo area). This is because message handling
under Windows is synchronous, so we cannot handle repaint (or any
other) messages while waiting for a system function, which popped up
the menu/dialog, to return the result of the dialog or pop-up menu
interaction.
** Display problems with ClearType method of smoothing
Describe problems on Windows with ClearType enabled.
2007-04-09 08:42:03 +00:00
When "ClearType" method is selected as the "method to smooth edges of
screen fonts" (in Display Properties, Appearance tab, under
"Effects"), there are various problems related to display of
Fixed part of Cleartype problem.
2008-02-15 23:24:04 +00:00
characters: Bold fonts can be hard to read, small portions of some
characters could appear chopped, etc. This happens because, under
ClearType, characters are drawn outside their advertised bounding box.
Emacs 21 disabled the use of ClearType, whereas Emacs 22 allows it and
has some code to enlarge the width of the bounding box. Apparently,
this display feature needs more changes to get it 100% right. A
workaround is to disable ClearType.
Describe problems on Windows with ClearType enabled.
2007-04-09 08:42:03 +00:00
Describe problems with cursor caused by Windows Magnifier * etc/PROBLEMS: Describe the problem with cursor shape on MS-Windows due to Windows Magnifier. Fixes: Bug#20271
2015-04-14 16:34:05 +00:00
** Cursor is displayed as a thin vertical bar and cannot be changed
This is known to happen if the Windows Magnifier is turned on before
the Emacs session starts. The Magnifier affects the cursor shape and
prevents any changes to it by setting the 'cursor-type' variable or
frame parameter.
The solution is to log off and on again, and then start the Emacs
session only after turning the Magnifier off.
To turn the Windows Magnifier off, click "Start->All Programs", or
"All Apps", depending on your Windows version, then select
"Accessibility" and click "Magnifier". In the Magnifier Settings
dialog that opens, click "Exit".
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Problems with mouse-tracking and focus management
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
There are problems with display if mouse-tracking is enabled and the
mouse is moved off a frame, over another frame then back over the first
frame. A workaround is to click the left mouse button inside the frame
after moving back into it.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some minor flickering still persists during mouse-tracking, although
not as severely as in 21.1.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
An inactive cursor remains in an active window after the Windows
Manager driven switch of the focus, until a key is pressed.
#
1999-10-03 12:39:42 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Problems with Windows input methods
Some of the Windows input methods cause the keyboard to send
characters encoded in the appropriate coding system (e.g., ISO 8859-1
for Latin-1 characters, ISO 8859-8 for Hebrew characters, etc.). To
make these input methods work with Emacs on Windows 9X, you might need
to set the keyboard coding system to the appropriate value after you
activate the Windows input method. For example, if you activate the
Hebrew input method, type this:
Update information about non-support of Windows input methods.
2007-04-08 08:59:32 +00:00
C-x RET k hebrew-iso-8bit RET
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
In addition, to use these Windows input methods, you might need to set
your "Language for non-Unicode programs" (on Windows XP, this is on
the Advanced tab of Regional Settings) to the language of the input
method.
#
1999-10-03 12:39:42 +00:00
(MS-Windows problems): How to bind non-ASCII keys with modifiers.
2007-03-31 10:01:51 +00:00
To bind keys that produce non-ASCII characters with modifiers, you
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
must specify raw byte codes. For instance, if you want to bind
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
META-a-grave to a command, you need to specify this in your '~/.emacs':
(MS-Windows problems): How to bind non-ASCII keys with modifiers.
2007-03-31 10:01:51 +00:00
(global-set-key [?\M-\340] ...)
The above example is for the Latin-1 environment where the byte code
of the encoded a-grave is 340 octal. For other environments, use the
encoding appropriate to that environment.
#
1999-10-03 12:39:42 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Problems with the %b format specifier for format-time-string
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The %b specifier for format-time-string does not produce abbreviated
month names with consistent widths for some locales on some versions
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
of Windows. This is caused by a deficiency in the underlying system
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
library function.
#
1999-10-03 12:39:42 +00:00
Improve time zone documentation * doc/lispref/os.texi (Time Zone Rules): New section, mostly with material moved here from other sections. * doc/emacs/cmdargs.texi (General Variables): * doc/lispref/os.texi (Time Conversion, Time Parsing): Xref new section. * etc/NEWS, etc/PROBLEMS: * lisp/org/org.el (org-timestamp-format): * src/editfns.c (Fformat_time_string, Fdecode_time) (Fencode_time, Fcurrent_time_string, Fcurrent_time_zone) (Fset_time_zone_rule): When documenting time zone rule strings, mention the TZ environment variable in preference to mentioning the sort-of-internal function set-time-zone-rule.
2016-04-12 15:47:15 +00:00
** Non-US time zones.
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
Improve time zone documentation * doc/lispref/os.texi (Time Zone Rules): New section, mostly with material moved here from other sections. * doc/emacs/cmdargs.texi (General Variables): * doc/lispref/os.texi (Time Conversion, Time Parsing): Xref new section. * etc/NEWS, etc/PROBLEMS: * lisp/org/org.el (org-timestamp-format): * src/editfns.c (Fformat_time_string, Fdecode_time) (Fencode_time, Fcurrent_time_string, Fcurrent_time_zone) (Fset_time_zone_rule): When documenting time zone rule strings, mention the TZ environment variable in preference to mentioning the sort-of-internal function set-time-zone-rule.
2016-04-12 15:47:15 +00:00
Many non-US time zones are implemented incorrectly. This is due to
over-simplistic handling of daylight savings switchovers by the
Windows libraries.
display-world-time does not work on Windows.
2007-10-17 22:27:24 +00:00
etc/PROBLEMS: Update problems specific to MS-Windows.
2014-07-12 09:08:41 +00:00
** Files larger than 4GB report wrong size in a 32-bit Windows build
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
Mention problems with files larger than 4GB on MS-Windows.
2007-04-27 13:37:31 +00:00
Files larger than 4GB cause overflow in the size (represented as a
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
32-bit integer) reported by 'file-attributes'. This affects Dired as
well, since the Windows port uses a Lisp emulation of 'ls', which relies
on 'file-attributes'.
Mention problems with files larger than 4GB on MS-Windows.
2007-04-27 13:37:31 +00:00
Update MS-Windows entries in etc/PROBLEMS.
2014-02-21 09:02:19 +00:00
** Playing sound doesn't support the :data method
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Sound playing is not supported with the ':data DATA' key-value pair.
You _must_ use the ':file FILE' method.
Document that :data is unsupported for playing sound on Windows.
2007-06-16 12:50:37 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
** Typing Alt-Shift has strange effects on MS-Windows.
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
This combination of keys is a command to change keyboard layout. If
you proceed to type another non-modifier key before you let go of Alt
and Shift, the Alt and Shift act as modifiers in the usual way. A
more permanent work around is to change it to another key combination,
Provide exact information about customizing Alt-Shift on Windows XP.
2007-11-17 11:16:40 +00:00
or disable it in the "Regional and Language Options" applet of the
Control Panel. (The exact sequence of mouse clicks in the "Regional
and Language Options" applet needed to find the key combination that
changes the keyboard layout depends on your Windows version; for XP,
in the Languages tab, click "Details" and then "Key Settings".)
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
** Interrupting Cygwin port of Bash from Emacs doesn't work.
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
Cygwin 1.x builds of the ported Bash cannot be interrupted from the
MS-Windows version of Emacs. This is due to some change in the Bash
port or in the Cygwin library which apparently make Bash ignore the
keyboard interrupt event sent by Emacs to Bash. (Older Cygwin ports
of Bash, up to b20.1, did receive SIGINT from Emacs.)
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
** Accessing remote files with ange-ftp hangs the MS-Windows version of Emacs.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
If the FTP client is the Cygwin port of GNU 'ftp', this appears to be
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
due to some bug in the Cygwin DLL or some incompatibility between it
and the implementation of asynchronous subprocesses in the Windows
port of Emacs. Specifically, some parts of the FTP server responses
are not flushed out, apparently due to buffering issues, which
confuses ange-ftp.
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
The solution is to downgrade to an older version of the Cygwin DLL
(version 1.3.2 was reported to solve the problem), or use the stock
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Windows FTP client, usually found in the 'C:\WINDOWS' or 'C:\WINNT'
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
directory. To force ange-ftp use the stock Windows client, set the
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
variable 'ange-ftp-ftp-program-name' to the absolute file name of the
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
client's executable. For example:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(setq ange-ftp-ftp-program-name "c:/windows/ftp.exe")
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you want to stick with the Cygwin FTP client, you can work around
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
this problem by putting this in your '.emacs' file:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(setq ange-ftp-ftp-program-args '("-i" "-n" "-g" "-v" "--prompt" "")
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** lpr commands don't work on MS-Windows with some cheap printers.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This problem may also strike other platforms, but the solution is
likely to be a global one, and not Emacs specific.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Many cheap inkjet, and even some cheap laser printers, do not
print plain text anymore, they will only print through graphical
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
printer drivers. A workaround on MS-Windows is to use Windows's basic
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
built in editor to print (this is possibly the only useful purpose it
has):
#
1999-10-03 12:39:42 +00:00
Fix commenting convention in PROBLEMS example
2012-04-04 07:30:02 +00:00
(setq printer-name "") ; notepad takes the default
(setq lpr-command "notepad") ; notepad
(setq lpr-switches nil) ; not needed
(setq lpr-printer-switch "/P") ; run notepad as batch printer
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Antivirus software interacts badly with the MS-Windows version of Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The usual manifestation of these problems is that subprocesses don't
work or even wedge the entire system. In particular, "M-x shell RET"
was reported to fail to work. But other commands also sometimes don't
work when an antivirus package is installed.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The solution is to switch the antivirus software to a less aggressive
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
mode (e.g., disable the "auto-protect" feature), or even uninstall
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
or disable it entirely.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Pressing the mouse button on MS-Windows does not give a mouse-2 event.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
This is usually a problem with the mouse driver. Because most Windows
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
programs do not do anything useful with the middle mouse button, many
mouse drivers allow you to define the wheel press to do something
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
different. Some drivers do not even have the option to generate a
middle button press. In such cases, setting the wheel press to
"scroll" sometimes works if you press the button twice. Trying a
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
generic mouse driver might help.
#
1999-10-03 12:39:42 +00:00
Describe problems with Microsoft Intellipoint * etc/PROBLEMS: Describe problems with Microsoft Intellipoint and mouse-2 events. For the details, see http://lists.gnu.org/archive/html/help-emacs-windows/2017-05/msg00009.html.
2017-05-19 12:37:58 +00:00
One particular situation where this happens is when you have
"Microsoft Intellipoint" installed, which runs the program
ipoint.exe. The fix is reportedly to uninstall this software.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Scrolling the mouse wheel on MS-Windows always scrolls the top window.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
This is another common problem with mouse drivers. Instead of
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
generating scroll events, some mouse drivers try to fake scroll bar
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
movement. But they are not intelligent enough to handle multiple
scroll bars within a frame. Trying a generic mouse driver might help.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Mail sent through Microsoft Exchange in some encodings appears to be
mangled and is not seen correctly in Rmail or Gnus. We don't know
exactly what happens, but it isn't an Emacs problem in cases we've
seen.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** On MS-Windows, you cannot use the right-hand ALT key and the left-hand
CTRL key together to type a Control-Meta character.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is a consequence of a misfeature beyond Emacs's control.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Under Windows, the AltGr key on international keyboards generates key
events with the modifiers Right-Alt and Left-Ctrl. Since Emacs cannot
distinguish AltGr from an explicit Right-Alt and Left-Ctrl
combination, whenever it sees Right-Alt and Left-Ctrl it assumes that
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
AltGr has been pressed. The variable 'w32-recognize-altgr' can be set
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
to nil to tell Emacs that AltGr is really Ctrl and Alt.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove yet more old stuff; more small edits
2014-01-07 02:33:46 +00:00
** Under some X-servers running on MS-Windows, Emacs's display is incorrect.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The symptoms are that Emacs does not completely erase blank areas of the
screen during scrolling or some other screen operations (e.g., selective
display or when killing a region). M-x recenter will cause the screen
to be completely redisplayed and the "extra" characters will disappear.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is known to occur under Exceed 6, and possibly earlier versions
as well; it is reportedly solved in version 6.2.0.16 and later. The
problem lies in the X-server settings.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
There are reports that you can solve the problem with Exceed by
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
running 'Xconfig' from within NT, choosing "X selection", then
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
un-checking the boxes "auto-copy X selection" and "auto-paste to X
selection".
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
If this does not work, please inform bug-gnu-emacs@gnu.org. Then
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
please call support for your X-server and see if you can get a fix.
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
If you do, please send it to bug-gnu-emacs@gnu.org so we can list it here.
#
1999-10-03 12:39:42 +00:00
Simplify case-insensitivity checks on Mac OS X * src/fileio.c (file_name_case_insensitive_p): Try skipping the Darwin code and instead using pathconf with _PC_CASE_SENSITIVE. Leave in two alternatives conditionally compiled based on DARWIN_OS_CASE_SENSITIVE_FIXME in case pathconf doesn't work. * etc/PROBLEMS: Mention the possible problem with pathconf on Mac OS X.
2016-11-14 22:26:12 +00:00
etc/PROBLEMS: Describe issues with native compilation on Cygwin
2022-07-11 17:03:32 +00:00
* Runtime problems specific to Cygwin
** Fork failures in a build with native compilation
To prevent fork failures, shared libraries on Cygwin need to be
rebased occasionally, for the reasons explained here:
https://cygwin.com/cygwin-ug-net/highlights.html#ov-hi-process-problems
This includes the .eln files produced by an Emacs built with native
compilation.
Rebasing is handled by Cygwin's autorebase postinstall script every
time you run the Cygwin setup program (which you should do with no
Cygwin processes running). This script knows about the .eln files
installed in the standard places (e.g.,
/usr/lib/emacs/28.1/native-lisp), but it does not know about those in
your user cache (e.g., /home/<username>/.emacs.d/eln-cache). In order
for these to be automatically rebased, you must create a file
/var/lib/rebase/userpath.d/<username>
with one line for each directory containing .eln files. If you are
running an installed Emacs, it should suffice to list your cache
directory. For example, if there is an Emacs user "kbrown", then
there should be a file
/var/lib/rebase/userpath.d/kbrown
containing the single line
/home/kbrown/.emacs.d/eln-cache
If you are running an Emacs that you have built but not installed,
then you will need an additional line giving the path to the
native-lisp subdirectory of your build directory.
If more than one user will be using Emacs on your system, there should
be a file like this for each user.
Rebasing is not currently done when new .eln files are created, so
fork failures are still possible between runs of Cygwin's setup
program. If you ever see a fork failure whose error message refers to
a .eln file, you should be able to fix it temporarily by exiting emacs
and issuing the command
find ~/.emacs.d/eln-cache -name '*.eln' | rebase -O -T -
This is called an "ephemeral" rebase. Again, if you are running an
Emacs that has not been installed, you need to add the native-lisp
subdirectory of your build directory to this command. Alternatively,
stop all Cygwin processes and run Cygwin's setup program to let the
autorebase postinstall script run.
It is hoped that the measures above will make native compilation
usable on 64-bit Cygwin, with only an occasional minor annoyance. In
the 32-bit case, however, the limited address space makes frequent
fork failures extremely likely. It is therefore strongly recommended
that you not build Emacs with native compilation on 32-bit Cygwin.
Indeed, the configure script will not allow this unless you use the
--with-cygwin32-native-compilation option.
; * etc/PROBLEMS: Give a URL for bug#50666.
2022-07-11 18:24:33 +00:00
See bug#50666 (https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50666)
for further discussion.
etc/PROBLEMS: Describe issues with native compilation on Cygwin
2022-07-11 17:03:32 +00:00
Improve XPM load failure message (bug#33126) * src/image.c (xpm_load_image): Only XPM3 is supported, so make that explicit.
2018-10-24 11:15:16 +00:00
* Runtime problems specific to macOS
; * etc/PROBLEMS: Minor copyedits of the last change. (Bug#51571)
2021-11-03 18:23:58 +00:00
** Error message when opening Emacs on macOS
Document a macOS error message when opening Emacs * etc/PROBLEMS: Document a potential error message when opening Emacs on macOS for the first time.
2021-11-02 18:45:18 +00:00
; * etc/PROBLEMS: Minor copyedits of the last change. (Bug#51571)
2021-11-03 18:23:58 +00:00
When opening Emacs, you may see an error message saying something like
this:
Document a macOS error message when opening Emacs * etc/PROBLEMS: Document a potential error message when opening Emacs on macOS for the first time.
2021-11-02 18:45:18 +00:00
"Emacs" can't be opened because Apple cannot check it for malicious
software. This software needs to be updated. Contact the developer
for more information.
; * etc/PROBLEMS: Minor copyedits of the last change. (Bug#51571)
2021-11-03 18:23:58 +00:00
The reason is that Apple incorrectly catalogs Emacs as potentially
malicious software and thus shows this error message.
Document a macOS error message when opening Emacs * etc/PROBLEMS: Document a potential error message when opening Emacs on macOS for the first time.
2021-11-02 18:45:18 +00:00
To avoid this alert, open Finder, go to Applications, control-click
the Emacs app icon, and then choose Open. This adds a security
exception for Emacs and from now on you should be able to open it by
double-clicking on its icon, like any other app.
Improve XPM load failure message (bug#33126) * src/image.c (xpm_load_image): Only XPM3 is supported, so make that explicit.
2018-10-24 11:15:16 +00:00
** macOS doesn't come with libxpm, so only XPM3 is supported.
Libxpm is available for macOS as part of the XQuartz project.
Mention problems with synthetic fonts on macOS * etc/PROBLEMS: Mention synthetic fonts (bug#18818).
2021-08-21 13:03:21 +00:00
** Synthetic fonts on macOS
Synthetic bold looks thinner if the background is darker than the
foreground and font smoothing is turned on. In such cases, you can
turn off synthetic bold for particular fonts and use overstriking
instead by customizing the variable 'face-ignored-fonts'. For
instance, if the problem is with the Monaco font, you could put
something like the following in your init file:
(push "\\`-[^-]*-monaco-bold-" face-ignored-fonts)
Improve XPM load failure message (bug#33126) * src/image.c (xpm_load_image): Only XPM3 is supported, so make that explicit.
2018-10-24 11:15:16 +00:00
Native compilation on macOS: libgccjit not found * etc/PROBLEMS: Describe the problem with libgccjit setup on macOS. (Bug#50411)
2021-09-18 21:17:49 +00:00
** Native Compilation on macOS
; Fix typos
2022-12-23 17:21:10 +00:00
Native compilation requires the libgccjit library to be installed and
Native compilation on macOS: libgccjit not found * etc/PROBLEMS: Describe the problem with libgccjit setup on macOS. (Bug#50411)
2021-09-18 21:17:49 +00:00
its path available to Emacs. Errors such as:
libgccjit.so: error: error invoking gcc driver
Error: Internal native compiler error failed to compile
indicate Emacs can't find the library in running time. One can set
; Fix typos
2021-11-12 12:50:55 +00:00
the "LIBRARY_PATH" environment variable in the early initialization
Native compilation on macOS: libgccjit not found * etc/PROBLEMS: Describe the problem with libgccjit setup on macOS. (Bug#50411)
2021-09-18 21:17:49 +00:00
file; for example:
(setenv "LIBRARY_PATH"
(string-join
'("/usr/local/opt/gcc/lib/gcc/11"
"/usr/local/opt/libgccjit/lib/gcc/11"
"/usr/local/opt/gcc/lib/gcc/11/gcc/x86_64-apple-darwin20/11.2.0") ":"))
* etc/PROBLEMS: Add a problem when PGTK started in systemd unit file
2021-12-24 14:21:50 +00:00
* Runtime problems specific to PGTK
Document workaround for bug#56627 * etc/PROBLEMS: Document problems with GTK tool bar icons on some icon themes. (bug#56627)
2022-07-19 03:29:34 +00:00
** Giant tool bar icons are displayed in some cases
This is because some icon themes (such as the KDE Breeze icon theme)
have several incorrectly sized icons, which also causes the toolbar to
expand uncontrollably. The fix is to switch to a different icon
theme, or to use Emacs's own toolbar icons by placing:
(setq x-gtk-stock-map nil)
in your early-init.el.
* etc/PROBLEMS: Add a problem when PGTK started in systemd unit file
2021-12-24 14:21:50 +00:00
** Some modifier keys doesn't work if Emacs is started in a systemd unit file.
Environment variables may be different if there is a difference in the
behavior of keys between when started in the systemd unit file and
when started from the command line.
Especially, PGTK Emacs needs environment variables LANG and
GTK_IM_MODULE.
* etc/PROBLEMS: Document some limitations of Xwayland and PGTK.
2022-02-11 06:46:25 +00:00
** 'set-mouse-position' does nothing.
GTK does not allow programs to warp the pointer anymore. There is
nothing that can be done about this problem.
* etc/PROBLEMS: Document problems with PGTK input methods.
2022-05-27 06:38:44 +00:00
** Certain keys such as 'C-S-u' are not reported correctly.
Some keys with modifiers such as Shift and Control might not be
reported correctly due to incorrectly written GTK input method
modules. This is known to happen to 'C-S-u' and 'C->', which are
misreported as 'C-u' and '>'.
To disable the use of GTK input methods, evaluate:
(pgtk-use-im-context nil)
This will also cause system input methods and features such as the
Compose key to stop working.
On X Windows, users should not use Emacs configured with PGTK, since
this and many other problems do not exist on the regular X builds.
Update Android port * etc/PROBLEMS: Document problem with default monospace font. * src/fileio.c (check_mutable_filename): Check /content as well. (Fcopy_file, Fdelete_directory_internal, Fdelete_file) (Frename_file, Fadd_name_to_file, Fmake_symbolic_link) (Fset_file_modes, Fset_file_times, Ffile_newer_than_file_p) (write_region): Adjust accordingly. (Fset_visited_file_modtime): Remove unnecessary restriction. * src/filelock.c (make_lock_file_name): Don't interlock files under /assets and /content. * src/inotify.c (Finotify_add_watch): Fix typo.
2023-03-05 06:53:12 +00:00
* Runtime problems specific to Android
** Text displayed in the default monospace font looks horrible.
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
TrueType fonts incorporate instruction code executed by the font
scaler (the component responsible for transforming outlines into
; Minor edits to PROBLEMS and sfnt.c * etc/PROBLEMS: Improve description of issues with Droid Sans Mono. * src/sfnt.c (sfnt_poly_edges_exact): Remove extraneous undef.
2024-01-10 03:38:54 +00:00
bitmap images capable of being displayed onscreen) to align features
of each glyph to pixel boundaries while maintaining their shape, in
order to alleviate visual imperfections produced by scaling. The
substandard instruction code provided by the Android "Droid Sans Mono"
font misplaces features of glyphs containing, as components, "E" and
"F", between PPEM sizes of 16 and 24, resulting in noticeable
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
whitespace inconsistencies with other glyphs. Furthermore, the
; Minor edits to PROBLEMS and sfnt.c * etc/PROBLEMS: Improve description of issues with Droid Sans Mono. * src/sfnt.c (sfnt_poly_edges_exact): Remove extraneous undef.
2024-01-10 03:38:54 +00:00
vertical stem in the glyph "T" is positioned too far to the left at
PPEM sizes of 12.
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
The remedy for this is to replace the instruction code with
automatically generated code from the FreeType project's "ttfautohint"
program. First, extract '/system/fonts/DroidSansMono.ttf' from your
device:
Update Android port * etc/PROBLEMS: Document problem with default monospace font. * src/fileio.c (check_mutable_filename): Check /content as well. (Fcopy_file, Fdelete_directory_internal, Fdelete_file) (Frename_file, Fadd_name_to_file, Fmake_symbolic_link) (Fset_file_modes, Fset_file_times, Ffile_newer_than_file_p) (write_region): Adjust accordingly. (Fset_visited_file_modtime): Remove unnecessary restriction. * src/filelock.c (make_lock_file_name): Don't interlock files under /assets and /content. * src/inotify.c (Finotify_add_watch): Fix typo.
2023-03-05 06:53:12 +00:00
$ adb pull /system/fonts/DroidSansMono.ttf
/system/fonts/DroidSansMono.ttf: 1 file pulled, 0 skipped.
23.1 MB/s (90208 bytes in 0.004s)
install the "ttfautohint" program:
http://freetype.org/ttfautohint/
generate a font file with new hinting instructions:
$ ttfautohint DroidSansMono.ttf > DroidSansMono.ttf.rpl
and upload them to your device, either back to /system/fonts (which is
allowed by free versions of Android, such as Replicant):
$ adb root
$ adb remount
$ adb push DroidSansMono.ttf.rpl /system/fonts/DroidSansMono.ttf
or to the user fonts directory described in the "Android Fonts" node
of the Emacs manual. You may want to perform this procedure even if
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
you are not experiencing problems with character display, as the
automatically generated instructions result in more legible text.
Illustrate more font problems * etc/PROBLEMS (Runtime problems specific to Android): Mention problems with three other fonts users have inquired into.
2023-08-22 13:42:06 +00:00
** Glyphs are missing within the "Arial" font or it does not load.
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
Old versions of this font included instruction code that assumed a
degree of latitude from the Microsoft font scaler, which grants fonts
leave to address nonexistent points without aborting the scaling
process, among other invalid TrueType operations. This issue may
extend beyond Arial to encompass a larger selection of old fonts
designed by Microsoft or Monotype; most of the time, installing newer
versions of such fonts will suffice.
Illustrate more font problems * etc/PROBLEMS (Runtime problems specific to Android): Mention problems with three other fonts users have inquired into.
2023-08-22 13:42:06 +00:00
** Some TrueType test fonts don't work.
It is unlikely that any of these fonts will really prove useful for
text editing tasks, since they are designed for the express purpose of
testing a TrueType font scaler. The following explanation is present
only to satisfy a cat-like curiosity.
Most TrueType test fonts "hide" points by moving them to a
preposterous location outside the confines of the glyph bounding box.
The Microsoft scaler and FreeType promptly disregard such points.
Nothing in the TrueType specifications implies that points "hidden" in
this fashion should be afforded any special treatment, and thus Emacs
; Fix typos
2023-12-10 12:22:04 +00:00
eschews doing so. Consequently, black streaks are displayed as
Illustrate more font problems * etc/PROBLEMS (Runtime problems specific to Android): Mention problems with three other fonts users have inquired into.
2023-08-22 13:42:06 +00:00
Emacs interpolates glyph edges between points within the glyph and
points the test font attempts to hide.
Since this behavior does not influence the display of real fonts, no
action will be taken to address this problem.
Provide an option to disable font instruction code execution * etc/PROBLEMS: Mention instruction code woes and illustrate how to circumvent them. * src/sfntfont.c (sfntfont_setup_interpreter): Respect Vsfnt_uninstructable_family_regexp. (syms_of_sfntfont) <Vsfnt_uninstructable_family_regexp>: New option.
2023-09-11 11:45:58 +00:00
** Some other font's instruction code produces undesirable results.
Executing instruction code is not a strict requirement for producing
correct display results from most current fonts. If a font's
instruction code produces results that are merely unpleasing, but not
incorrect, then the font was presumably not designed for Emacs's
; * etc/PROBLEMS: Remove several resolved problems.
2024-01-08 07:26:50 +00:00
scaler. If its uninstructed glyphs are satisfactory (such as when
your screen resolution is high enough to ameliorate scaling
artifacts), disable instruction code execution by appending its family
Provide an option to disable font instruction code execution * etc/PROBLEMS: Mention instruction code woes and illustrate how to circumvent them. * src/sfntfont.c (sfntfont_setup_interpreter): Respect Vsfnt_uninstructable_family_regexp. (syms_of_sfntfont) <Vsfnt_uninstructable_family_regexp>: New option.
2023-09-11 11:45:58 +00:00
name to the variable 'sfnt-uninstructable-font-regexp', then
restarting Emacs.
; Add tasks for the Android port * etc/PROBLEMS: Improve descriptions of issues with Droid Sans Mono and Anonymous Pro. Then, bring up the subject of CFF fonts and how they relate to CJK text. * etc/TODO: Detail that CFF support is desired.
2023-08-17 02:03:49 +00:00
** CJK text does not display in Emacs, but does in other programs.
When inserting CJK text into a buffer or visiting a file containing
CJK text, Emacs often fails to locate a suitable font. This problem
manifests itself as hollow squares with numbers and letters within
being displayed in lieu of the text itself.
The reason for this is Emacs's absence of support for OpenType fonts
utilizing CFF (Compact Font Format) outlines, which the CJK fonts
bundled with Android have been distributed as since Android 7.0.
The solution is to install a TrueType CJK font to the user fonts
directory detailed in the "Android Fonts" node of the Emacs manual.
Introducing support for the byzantine CFF font format into the Android
port is a large undertaking that we are looking for volunteers to
perform. If you are interested in taking responsibility for this
task, please contact <emacs-devel@gnu.org>.
Document Battery Optimization challenges on Android * etc/PROBLEMS (Runtime problems specific to Android): Mention battery optimization, the way it impacts background execution, and how it might be disabled.
2023-11-18 09:41:51 +00:00
** Emacs can only execute spasmodically in the background.
Recent Android releases impose "battery optimization" on programs for
which it is not expressly disabled; such optimization inhibits the
execution of background services outside brief windows of time
distributed at intervals of several dozens of minutes. Such programs
as ERC which must send "keep-alive" packets at a rate beyond that at
which these windows arrive consequently lose, yielding connection
timeouts after Emacs has been in the background long enough that
battery optimization enters into effect.
This optimization can be disabled through the Settings app: navigate
to "Apps & notifications", "Emacs", "Battery", "Battery Optimization",
before clicking the drop-down menu labeled "Not Optimized", selecting
the option "All Apps", scrolling to "Emacs", clicking on its entry and
selecting "Don't Optimize" in the dialog box thus displayed.
The organization of the Settings app might disagree with that
illustrated above, which if true you should consult the documentation
or any search mechanism for it.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
* Build-time problems
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Configuration
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** 'configure' warns "accepted by the compiler, rejected by the preprocessor".
(Configuration): Add entries on compiler/preprocessor mismatch, and on preprocessor inserting whitespace.
2007-04-04 02:58:38 +00:00
This indicates a mismatch between the C compiler and preprocessor that
configure is using. For example, on Solaris 10 trying to use
Simplify Solaris port This should avoid some configuration confusion as exemplified by Jeffrey Walton’s recent bug report (Bug#42675). * configure.ac (opsys): Simplify Solaris configuration by not worrying about Solaris 9 and earlier, as they are no longer supported by the Solaris developers. This should support Walton’s ‘./configure --build=x86_64-sun-solaris’. Instead of bothering with ‘opsys=sol2-6’ and ‘opsys=sol2-10’, just use ‘opsys=solaris’. All uses changed. (emacs_check_sunpro_c): Remove unused var. * doc/misc/tramp.texi (Remote programs): * etc/MACHINES, etc/PROBLEMS: Modernize PATH for Oracle Developer Studio. * etc/PROBLEMS: Move Solaris-related problems to legacy area, except those that are still relevant.
2020-08-06 00:36:50 +00:00
CC=/opt/developerstudio12.6/bin/cc (the Oracle Developer Studio
compiler) together with CPP=/usr/lib/cpp can result in errors of
this form.
(Configuration): Add entries on compiler/preprocessor mismatch, and on preprocessor inserting whitespace.
2007-04-04 02:58:38 +00:00
The solution is to tell configure to use the correct C preprocessor
Simplify Solaris port This should avoid some configuration confusion as exemplified by Jeffrey Walton’s recent bug report (Bug#42675). * configure.ac (opsys): Simplify Solaris configuration by not worrying about Solaris 9 and earlier, as they are no longer supported by the Solaris developers. This should support Walton’s ‘./configure --build=x86_64-sun-solaris’. Instead of bothering with ‘opsys=sol2-6’ and ‘opsys=sol2-10’, just use ‘opsys=solaris’. All uses changed. (emacs_check_sunpro_c): Remove unused var. * doc/misc/tramp.texi (Remote programs): * etc/MACHINES, etc/PROBLEMS: Modernize PATH for Oracle Developer Studio. * etc/PROBLEMS: Move Solaris-related problems to legacy area, except those that are still relevant.
2020-08-06 00:36:50 +00:00
for your C compiler (CPP="/opt/developerstudio12.6/bin/cc -E" in the
above example).
(Configuration): Add entries on compiler/preprocessor mismatch, and on preprocessor inserting whitespace.
2007-04-04 02:58:38 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Compilation
#
1999-10-03 12:39:42 +00:00
; * etc/PROBLEMS: Move entry about LLVM plugin to the right section.
2021-11-06 12:23:02 +00:00
*** Link-time optimization with clang doesn't work on Fedora 20.
As of May 2014, Fedora 20 has broken LLVMgold.so plugin support in clang
(tested with clang-3.4-6.fc20) - 'clang --print-file-name=LLVMgold.so'
prints 'LLVMgold.so' instead of full path to plugin shared library, and
'clang -flto' is unable to find the plugin with the following error:
/bin/ld: error: /usr/bin/../lib/LLVMgold.so: could not load plugin library:
/usr/bin/../lib/LLVMgold.so: cannot open shared object file: No such file
or directory
The only way to avoid this is to build your own clang from source code
repositories, as described at http://clang.llvm.org/get_started.html.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** Building Emacs over NFS fails with "Text file busy".
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This was reported to happen when building Emacs on a GNU/Linux system
Fix some typos.
2007-04-12 04:16:47 +00:00
(Red Hat Linux 6.2) using a build directory automounted from Solaris
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
(SunOS 5.6) file server, but it might not be limited to that
configuration alone. Presumably, the NFS server doesn't commit the
files' data to disk quickly enough, and the Emacs executable file is
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
left "busy" for several seconds after Emacs has finished dumping
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
itself. This causes the subsequent commands which invoke the dumped
Emacs executable to fail with the above message.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
In some of these cases, a time skew between the NFS server and the
machine where Emacs is built is detected and reported by GNU Make
(it says that some of the files have modification time in the future).
This might be a symptom of NFS-related problems.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If the NFS server runs on Solaris, apply the Solaris patch 105379-05
(Sunos 5.6: /kernel/misc/nfssrv patch). If that doesn't work, or if
you have a different version of the OS or the NFS server, you can
force the NFS server to use 1KB blocks, which was reported to fix the
problem albeit at a price of slowing down file I/O. You can force 1KB
blocks by specifying the "-o rsize=1024,wsize=1024" options to the
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'mount' command, or by adding ",rsize=1024,wsize=1024" to the mount
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
options in the appropriate system configuration file, such as
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'/etc/auto.home'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Alternatively, when Make fails due to this problem, you could wait for
a few seconds and then invoke Make again. In one particular case,
waiting for 10 or more seconds between the two Make invocations seemed
to work around the problem.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Similar problems can happen if your machine NFS-mounts a directory
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
onto itself. Suppose the Emacs sources live in '/usr/local/src' and
you are working on the host called 'marvin'. Then an entry in the
'/etc/fstab' file like the following is asking for trouble:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
marvin:/usr/local/src /usr/local/src ...options.omitted...
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
The solution is to remove this line from '/etc/fstab'.
#
1999-10-03 12:39:42 +00:00
Add information on compiling 32-bit Emacs on 64-bit GNU/Linux. Update copyright for years post-Emacs 21 to present.
2007-01-13 02:25:58 +00:00
*** Building a 32-bit executable on a 64-bit GNU/Linux architecture.
First ensure that the necessary 32-bit system libraries and include
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
files are installed. Then use:
Add information on compiling 32-bit Emacs on 64-bit GNU/Linux. Update copyright for years post-Emacs 21 to present.
2007-01-13 02:25:58 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
env CC="gcc -m32" ./configure --build=i386-linux-gnu --x-libraries=/usr/lib
Add information on compiling 32-bit Emacs on 64-bit GNU/Linux. Update copyright for years post-Emacs 21 to present.
2007-01-13 02:25:58 +00:00
(using the location of the 32-bit X libraries on your system).
* etc/PROBLEMS: Mention the link-time problems on FreeBSD 11. (Bug#23641)
2016-06-04 15:45:46 +00:00
*** Building on FreeBSD 11 fails at link time due to unresolved symbol
The symbol is sendmmsg@FBSD_1.4. This is due to a faulty libgio
library on these systems. The solution is to reconfigure Emacs while
disabling all the features that require libgio: rsvg, dbus, gconf, and
imagemagick.
* PROBLEMS: Mention problem with Cygwin 1.5.19.
2010-07-27 19:50:01 +00:00
*** Building Emacs 23.3 and later will fail under Cygwin 1.5.19
This is a consequence of a change to src/dired.c on 2010-07-27. The
issue is that Cygwin 1.5.19 did not have d_ino in 'struct dirent'.
See
maint: shorten https://lists.gnu.org/archive/html/... links
2017-11-26 06:45:41 +00:00
https://lists.gnu.org/r/emacs-devel/2010-07/msg01266.html
* PROBLEMS: Mention problem with Cygwin 1.5.19.
2010-07-27 19:50:01 +00:00
; Mention MinGW64 GCC 13.1 problems in PROBLEMS * etc/PROBLEMS: Mention the problems building with MinGW64 GCC 13.1. (Bug#63365)
2023-06-24 07:23:07 +00:00
*** Building the MS-Windows port with native compilation fails
This is known to happen when using MinGW64 GCC 13.1, and seems to
affect byte-compilation: the built Emacs crashes while byte-compiling
some Lisp files. (This doesn't happen when building a release
tarball, because all the Lisp files are already byte-compiled there,
but then Emacs could crash later when you use it to byte-compile your
or third-party Lisp packages.)
The reason seems to be specific to MS-Windows or the MinGW64 port of
GCC 13.1, and is somehow related to optimizations in this GCC version.
There are several known workarounds:
. Use non-default optimization flags. For example, configuring the
build like this will avoid the problem:
CFLAGS='-O1 -gdwarf-4 -g3' ./configure ...
(replace the ellipsis "..." with the rest of 'configure' options
and arguments).
. Prevent GCC from performing a specific optimization:
CFLAGS='-O2 -gdwarf-4 -g3 -fno-optimize-sibling-calls' ./configure ...
This is actually a variant of the previous workaround, except that
it allows you to have almost the full set of optimizations used by
-O2.
. Downgrade to GCC 12.x.
. Build Emacs without native compilation.
Document problems on MS-Windows with incompatible regex.h headers. PROBLEMS: Mention problems on MS-Windows with incompatible regex.h headers.
2010-03-27 12:52:55 +00:00
*** Building the native MS-Windows port fails due to unresolved externals
The linker error messages look like this:
oo-spd/i386/ctags.o:ctags.c:(.text+0x156e): undefined reference to `_imp__re_set_syntax'
collect2: ld returned 1 exit status
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
This happens because GCC finds an incompatible regex.h header
Document problems on MS-Windows with incompatible regex.h headers. PROBLEMS: Mention problems on MS-Windows with incompatible regex.h headers.
2010-03-27 12:52:55 +00:00
somewhere on the include path, before the version of regex.h supplied
with Emacs. One such incompatible version of regex.h is part of the
GnuWin32 Regex package.
The solution is to remove the incompatible regex.h from the include
path, when compiling Emacs. Alternatively, re-run the configure.bat
script with the "-isystem C:/GnuWin32/include" switch (adapt for your
system's place where you keep the GnuWin32 include files) -- this will
cause the compiler to search headers in the directories specified by
the Emacs Makefile _before_ it looks in the GnuWin32 include
directories.
Document problems with Cygwin builds of GCC 3.4.4.
2006-11-04 12:11:21 +00:00
*** Building the native MS-Windows port with Cygwin GCC can fail.
#
1999-10-03 12:39:42 +00:00
(Cygwin GCC): recent -> some, as the information is no longer current.
2008-02-04 11:26:17 +00:00
Emacs may not build using some Cygwin builds of GCC, such as Cygwin
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
version 1.1.8, using the default configure settings. It appears to be
necessary to specify the -mwin32 flag when compiling, and define
__MSVCRT__, like so:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
configure --with-gcc --cflags -mwin32 --cflags -D__MSVCRT__
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Building the MS-Windows port fails with a CreateProcess failure.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some versions of mingw32 make on some versions of Windows do not seem
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
to detect the shell correctly. Try "make SHELL=cmd.exe", or if that
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
fails, try running make from Cygwin bash instead.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** Building 'ctags' for MS-Windows with the MinGW port of GCC fails.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This might happen due to a bug in the MinGW header assert.h, which
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
defines the 'assert' macro with a trailing semi-colon. The following
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
patch to assert.h should solve this:
#
1999-10-03 12:39:42 +00:00
Fix last change. Indent the patch for assert.h one column.
2007-03-03 11:03:50 +00:00
*** include/assert.h.orig Sun Nov 7 02:41:36 1999
--- include/assert.h Mon Jan 29 11:49:10 2001
***************
*** 41,47 ****
/*
* If not debugging, assert does nothing.
*/
! #define assert(x) ((void)0);
#else /* debugging enabled */
--- 41,47 ----
/*
* If not debugging, assert does nothing.
*/
! #define assert(x) ((void)0)
#else /* debugging enabled */
#
1999-10-03 12:39:42 +00:00
Note added about the Visual Studio 2005 problem.
2007-03-03 01:18:47 +00:00
*** Building the MS-Windows port with Visual Studio 2005 fails.
#
1999-10-03 12:39:42 +00:00
Note added about the Visual Studio 2005 problem.
2007-03-03 01:18:47 +00:00
Microsoft no longer ships the single threaded version of the C library
with their compiler, and the multithreaded static library is missing
Fix last change. Indent the patch for assert.h one column.
2007-03-03 11:03:50 +00:00
some functions that Microsoft have deemed non-threadsafe. The
Note added about the Visual Studio 2005 problem.
2007-03-03 01:18:47 +00:00
dynamically linked C library has all the functions, but there is a
conflict between the versions of malloc in the DLL and in Emacs, which
is not resolvable due to the way Windows does dynamic linking.
#
1999-10-03 12:39:42 +00:00
(CPP): Note problem with resource compiler of MSVC.
2009-02-04 09:13:18 +00:00
We recommend the use of the MinGW port of GCC for compiling Emacs, as
Note added about the Visual Studio 2005 problem.
2007-03-03 01:18:47 +00:00
not only does it not suffer these problems, but it is also Free
software like Emacs.
#
1999-10-03 12:39:42 +00:00
(CPP): Note problem with resource compiler of MSVC.
2009-02-04 09:13:18 +00:00
*** Building the MS-Windows port with Visual Studio fails compiling emacs.rc
If the build fails with the following message then the problem
described here most likely applies:
../nt/emacs.rc(1) : error RC2176 : old DIB in icons\emacs.ico; pass it
through SDKPAINT
The Emacs icon contains a high resolution PNG icon for Vista, which is
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
not recognized by older versions of the resource compiler. There are
(CPP): Note problem with resource compiler of MSVC.
2009-02-04 09:13:18 +00:00
several workarounds for this problem:
1. Use Free MinGW tools to compile, which do not have this problem.
2. Install the latest Windows SDK.
3. Replace emacs.ico with an older or edited icon.
* PROBLEMS: Add note about use of backslashes in Windows paths.
2010-07-20 18:32:42 +00:00
*** Building the MS-Windows port complains about unknown escape sequences.
Errors and warnings can look like this:
w32.c:1959:27: error: \x used with no following hex digits
w32.c:1959:27: warning: unknown escape sequence '\i'
This happens when paths using backslashes are passed to the compiler or
linker (via -I and possibly other compiler flags); when these paths are
included in source code, the backslashes are interpreted as escape sequences.
maint: shorten https://lists.gnu.org/archive/html/... links
2017-11-26 06:45:41 +00:00
See https://lists.gnu.org/r/emacs-devel/2010-07/msg00995.html
* PROBLEMS: Add note about use of backslashes in Windows paths.
2010-07-20 18:32:42 +00:00
The fix is to use forward slashes in all paths passed to the compiler.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Linking
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Building Emacs with a system compiler fails to link because of an
undefined symbol such as __eprintf which does not appear in Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if some of the libraries linked into Emacs were built
with GCC, but Emacs itself is being linked with a compiler other than
GCC. Object files compiled with GCC might need some helper functions
from libgcc.a, the library which comes with GCC, but the system
compiler does not instruct the linker to search libgcc.a during the
link stage.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
A solution is to link with GCC, like this:
#
1999-10-03 12:39:42 +00:00
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
make CC=gcc
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Since the .o object files already exist, this will not recompile Emacs
with GCC, but just restart by trying again to link temacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Sun with acc: Link failure when using acc on a Sun.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
To use acc, you need additional options just before the libraries, such as
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
/usr/lang/SC2.0.1/values-Xt.o -L/usr/lang/SC2.0.1/cg87 -L/usr/lang/SC2.0.1
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
and you need to add -lansi just before -lc.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The precise file names depend on the compiler version, so we
cannot easily arrange to supply them.
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
*** 'tparam' reported as a multiply-defined symbol when linking with ncurses.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This problem results from an incompatible change in ncurses, in
version 1.9.9e approximately. This version is unable to provide a
definition of tparm without also defining tparam. This is also
incompatible with Terminfo; as a result, the Emacs Terminfo support
does not work with this version of ncurses.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
The fix is to install a newer version of ncurses, such as version 4.2.
#
1999-10-03 12:39:42 +00:00
Mention Ubuntu make weirdness.
2008-09-05 04:01:53 +00:00
** Bootstrapping
Bootstrapping (compiling the .el files) is normally only necessary
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
with development builds, since the .elc files are pre-compiled in releases.
Mention Ubuntu make weirdness.
2008-09-05 04:01:53 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Dumping
#
1999-10-03 12:39:42 +00:00
; Update minimum requirements of MinGW-w64 * etc/PROBLEMS (Dumping): * nt/INSTALL.W64: Update the minimum OS version supported by MinGW-w64.
2022-12-24 16:46:58 +00:00
*** temacs.exe fails to run when invoked by the build for dumping
The error message might be something like
make[2]: *** [Makefile:915: bootstrap-emacs.pdmp] Error 127
This happens if you try to build Emacs on versions of MS-Windows older
than the minimum version supported by MinGW-w64. As of Dec 2022, the
Revert "; Bump minimum supported Windows version for MinGW64 to Windows 10." This reverts commit 75155e458601a3597d382660d0be863ab4d512c0. Evidently, some MSYS2/MinGW64 folks still think Windows 8.1 is the minimum supported version, even though MinGW-w64 switched to Windows 10 as the default target in January 2022.
2022-12-24 19:39:26 +00:00
minimum supported Windows version is 8.1, and the computer hardware
(CPU, memory, disk) should also match the minimum Windows 8.1
requirements.
; Update minimum requirements of MinGW-w64 * etc/PROBLEMS (Dumping): * nt/INSTALL.W64: Update the minimum OS version supported by MinGW-w64.
2022-12-24 16:46:58 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
*** Segfault during 'make'
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
If Emacs segfaults when 'make' executes one of these commands:
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
LC_ALL=C ./temacs -batch -l loadup bootstrap
LC_ALL=C ./temacs -batch -l loadup dump
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
the problem may be due to inadequate workarounds for address space
layout randomization (ASLR), an operating system feature that
randomizes the virtual address space of a process. ASLR is commonly
enabled in Linux and NetBSD kernels, and is intended to deter exploits
of pointer-related bugs in applications. If ASLR is enabled, the
command:
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
cat /proc/sys/kernel/randomize_va_space # GNU/Linux
sysctl security.pax.aslr.global # NetBSD
* PROBLEMS: Updated exec-shield description.
2004-09-25 20:39:13 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
outputs a nonzero value.
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
These segfaults should not occur on most modern systems, because the
Emacs build procedure uses the command 'setfattr' or 'paxctl' to mark
the Emacs executable as requiring non-randomized address space, and
Emacs uses the 'personality' system call to disable address space
randomization when dumping. However, older kernels may not support
'setfattr', 'paxctl', or 'personality', and newer Linux kernels have a
secure computing mode (seccomp) that can be configured to disable the
'personality' call.
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
It may be possible to work around the 'personality' problem in a newer
Linux kernel by configuring seccomp to allow the 'personality' call.
For example, if you are building Emacs under Docker, you can run the
Docker container with a security profile that allows 'personality' by
using Docker's --security-opt option with an appropriate profile; see
<https://docs.docker.com/engine/security/seccomp/>.
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
To work around the ASLR problem in either an older or a newer kernel,
you can temporarily disable the feature while building Emacs. On
GNU/Linux you can do so using the following command (as root).
* PROBLEMS: Updated exec-shield description.
2004-09-25 20:39:13 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
echo 0 > /proc/sys/kernel/randomize_va_space
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
You can re-enable the feature when you are done, by echoing the
original value back to the file. NetBSD uses a different command,
e.g., 'sysctl -w security.pax.aslr.global=0'.
Emacs now requires ws2_32.dll on Windows.
2006-07-14 15:03:52 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
Alternatively, you can try using the 'setarch' command when building
temacs like this, where -R disables address space randomization:
(Fedora Core 4 GNU/Linux: Segfault during dumping): New.
2005-06-28 18:52:26 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
setarch $(uname -m) -R make
(Fedora Core 4 GNU/Linux: Segfault during dumping): New.
2005-06-28 18:52:26 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
ASLR is not the only problem that can break Emacs dumping. Another
issue is that in Red Hat Linux kernels, Exec-shield is enabled by
default, and this creates a different memory layout. Emacs should
handle this at build time, but if this fails the following
instructions may be useful. Exec-shield is enabled on your system if
(Fedora Core 4 GNU/Linux: Segfault during dumping): New.
2005-06-28 18:52:26 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
cat /proc/sys/kernel/exec-shield
prints a nonzero value. You can temporarily disable it as follows:
(Fedora Core 4 GNU/Linux: Segfault during dumping): New.
2005-06-28 18:52:26 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
echo 0 > /proc/sys/kernel/exec-shield
#
1999-10-03 12:39:42 +00:00
Modernize ASLR advice in etc/PROBLEMS * etc/PROBLEMS (Segfault during 'make'): Modernize advice for seccomp, Docker, and NetBSD (Bug#23529).
2016-05-18 08:05:00 +00:00
As with randomize_va_space, you can re-enable Exec-shield when you are
done, by echoing the original value back to the file.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** temacs prints "Pure Lisp storage exhausted".
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Small copyedits.
2014-03-22 22:56:29 +00:00
This means that the Lisp code loaded from the .elc and .el files during
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'temacs --batch --load loadup dump' took up more space than was allocated.
#
1999-10-03 12:39:42 +00:00
This could be caused by
1) adding code to the preloaded Lisp files
2) adding more preloaded files in loadup.el
3) having a site-init.el or site-load.el which loads files.
Note that ANY site-init.el or site-load.el is nonstandard;
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
if you have received Emacs from some other site and it contains a
site-init.el or site-load.el file, consider deleting that file.
#
1999-10-03 12:39:42 +00:00
4) getting the wrong .el or .elc files
(not from the directory you expected).
5) deleting some .elc files that are supposed to exist.
This would cause the source files (.el files) to be
loaded instead. They take up more room, so you lose.
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
6) a bug in the Emacs distribution which underestimates the space required.
#
1999-10-03 12:39:42 +00:00
If the need for more space is legitimate, change the definition
of PURESIZE in puresize.h.
But in some of the cases listed above, this problem is a consequence
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
of something else that is wrong. Be sure to check and fix the real problem.
#
1999-10-03 12:39:42 +00:00
Mention openSUSE bcopy issue.
2007-10-09 02:40:01 +00:00
*** openSUSE 10.3: Segfault in bcopy during dumping.
This is due to a bug in the bcopy implementation in openSUSE 10.3.
It is/will be fixed in an openSUSE update.
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** First execution
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs binary is not in executable format, and cannot be run.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This was reported to happen when Emacs is built in a directory mounted
via NFS, for some combinations of NFS client and NFS server.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Usually, the file 'emacs' produced in these cases is full of
binary null characters, and the 'file' utility says:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
emacs: ASCII text, with no line terminators
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
We don't know what exactly causes this failure. A work-around is to
build Emacs in a directory on a local disk.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** The dumped Emacs crashes when run, trying to write pure data.
#
1999-10-03 12:39:42 +00:00
Remove obsolete '#define static' cruft. * etc/PROBLEMS: Remove obsolete '#define static' cruft. * lwlib/xlwmenu.c [emacs]: Include "bitmaps/gray.xbm". (gray_bitmap_width, gray_bitmap_height, gray_bitmap_bits) [!emacs]: Remove; all uses replaced with definiens. * src/s/hpux10-20.h (_FILE_OFFSET_BITS): Don't #undef. This #undef was "temporary" in 2000; it is no longer needed now that '#define static' has gone away. * src/xfns.c, src/xterm.h (gray_bitmap_width, gray_bitmap_height) (gray_bitmap_bits): Remove; no longer needed. All uses replaced with definiens. * src/xterm.c: Include "bitmaps/gray.xbm".
2012-05-31 05:08:37 +00:00
On a system where getpagesize is not a system call, it is defined
Rename src/unexec.c => src/unexcoff.c. src/unexcoff.c: Renamed from unexec.c. src/deps.mk (unexcoff.o): Rename unexec.[co] => unexcoff.[co]. configure.in (UNEXEC_OBJ): Rename unexec.o => unexcoff.o. admin/MAINTAINERS: Rename src/unexec.c => src/unexcoff.c. etc/AUTHORS: Rename unexec.o => unexcoff.o. etc/PROBLEMS: Rename unexec.o => unex*.o. lisp/emacs-lisp/find-gc.el (find-gc-source-files): Rename unexec.c => unexcoff.c. lisp/emacs-lisp/authors.el (authors-fixed-entries): Rename unexec.c => unexcoff.c. msdos/sed1v2.inp (UNEXEC_OBJ): Edit to unexcoff.o, due to renaming of unexec.c => unexcoff.c.
2010-08-05 17:11:32 +00:00
as a macro. If the definition (in both unex*.c and malloc.c) is wrong,
#
1999-10-03 12:39:42 +00:00
it can cause problems like this. You might be able to find the correct
Update etc/PROBLEMS. * etc/PROBLEMS: Mention visible-cursor; a few more mentions of ~/.Xresources and xrdb(1); refer to 'GNU Coreutils' and 'X Window System' or 'X' (were: 'GNU Fileutils' and 'X Windows', respectively); other minor updates and tweaks. (Bug#20011)
2015-04-07 17:42:28 +00:00
value in the man page for a.out(5).
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
* Problems on legacy systems
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This section covers bugs reported on very old hardware or software.
If you are using hardware and an operating system shipped after 2000,
it is unlikely you will see any of these.
#
1999-10-03 12:39:42 +00:00
; etc/PROBLEMS: Move Ubuntu 8.04 entry to legacy systems.
2022-08-12 16:09:22 +00:00
** GNU/Linux
*** Ubuntu 8.04 make 3.81-3build1: "No rule to make target"
Compiling the lisp files fails at random places, complaining:
"No rule to make target '/path/to/some/lisp.elc'".
The causes of this problem are not understood. Using GNU make 3.81 compiled
from source, rather than the Ubuntu version, worked.
See <URL:https://debbugs.gnu.org/327>, <URL:https://debbugs.gnu.org/821>.
Simplify Solaris port This should avoid some configuration confusion as exemplified by Jeffrey Walton’s recent bug report (Bug#42675). * configure.ac (opsys): Simplify Solaris configuration by not worrying about Solaris 9 and earlier, as they are no longer supported by the Solaris developers. This should support Walton’s ‘./configure --build=x86_64-sun-solaris’. Instead of bothering with ‘opsys=sol2-6’ and ‘opsys=sol2-10’, just use ‘opsys=solaris’. All uses changed. (emacs_check_sunpro_c): Remove unused var. * doc/misc/tramp.texi (Remote programs): * etc/MACHINES, etc/PROBLEMS: Modernize PATH for Oracle Developer Studio. * etc/PROBLEMS: Move Solaris-related problems to legacy area, except those that are still relevant.
2020-08-06 00:36:50 +00:00
** Solaris
*** Problem with remote X server on Suns.
On a Sun, running Emacs on one machine with the X server on another
may not work if you have used the unshared system libraries. This
is because the unshared libraries fail to use YP for host name lookup.
As a result, the host name you specify may not be recognized.
*** Solaris 2.6: Emacs crashes with SIGBUS or SIGSEGV on Solaris after you delete a frame.
We suspect that this is a bug in the X libraries provided by
Sun. There is a report that one of these patches fixes the bug and
makes the problem stop:
105216-01 105393-01 105518-01 105621-01 105665-01 105615-02 105216-02
105667-01 105401-08 105615-03 105621-02 105686-02 105736-01 105755-03
106033-01 105379-01 105786-01 105181-04 105379-03 105786-04 105845-01
105284-05 105669-02 105837-01 105837-02 105558-01 106125-02 105407-01
Another person using a newer system (kernel patch level Generic_105181-06)
suspects that the bug was fixed by one of these more recent patches:
106040-07 SunOS 5.6: X Input & Output Method patch
106222-01 OpenWindows 3.6: filemgr (ff.core) fixes
105284-12 Motif 1.2.7: sparc Runtime library patch
*** Solaris 7 or 8: Emacs reports a BadAtom error (from X)
This happens when Emacs was built on some other version of Solaris.
Rebuild it on Solaris 8.
*** When using M-x dbx with the SparcWorks debugger, the 'up' and 'down'
commands do not move the arrow in Emacs.
You can fix this by adding the following line to '~/.dbxinit':
dbxenv output_short_file_name off
*** On Solaris, CTRL-t is ignored by Emacs when you use
the fr.ISO-8859-15 locale (and maybe other related locales).
You can fix this by editing the file:
/usr/openwin/lib/locale/iso8859-15/Compose
Near the bottom there is a line that reads:
Ctrl<t> <quotedbl> <Y> : "\276" threequarters
while it should read:
Ctrl<T> <quotedbl> <Y> : "\276" threequarters
Note the lower case <t>. Changing this line should make C-t work.
*** On Solaris, Emacs fails to set menu-bar-update-hook on startup, with error
"Error in menu-bar-update-hook: (error Point before start of properties)".
This seems to be a GCC optimization bug that occurs for GCC 4.1.2 (-g
and -g -O2) and GCC 4.2.3 (-g -O and -g -O2). You can fix this by
compiling with GCC 4.2.3 or CC 5.7, with no optimizations.
*** Other legacy Solaris problems
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** Strange results from format %d in a few cases, on a Sun.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
Sun compiler version SC3.0 has been found to miscompile part of editfns.c.
The workaround is to compile with some other compiler such as GCC.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** On Solaris, Emacs dumps core if lisp-complete-symbol is called.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If you compile Emacs with the -fast or -xO4 option with version 3.0.2
of the Sun C compiler, Emacs dumps core when lisp-complete-symbol is
called. The problem does not happen if you compile with GCC.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** On Solaris, Emacs crashes if you use (display-time).
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if you configure Emacs without specifying the precise
version of Solaris that you are using.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** Solaris 2.x: GCC complains "64 bit integer types not supported".
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This suggests that GCC is not installed correctly. Most likely you
are using GCC 2.7.2.3 (or earlier) on Solaris 2.6 (or later); this
does not work without patching. To run GCC 2.7.2.3 on Solaris 2.6 or
later, you must patch fixinc.svr4 and reinstall GCC from scratch as
described in the Solaris FAQ
<http://www.wins.uva.nl/pub/solaris/solaris2.html>. A better fix is
to upgrade to GCC 2.8.1 or later.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
**** Solaris 2.7: Building Emacs with WorkShop Compilers 5.0 98/12/15
C 5.0 failed, apparently with non-default CFLAGS, most probably due to
compiler bugs. Using Sun Solaris 2.7 Sun WorkShop 6 update 1 C
release was reported to work without problems. It worked OK on
another system with Solaris 8 using apparently the same 5.0 compiler
and the default CFLAGS.
#
1999-10-03 12:39:42 +00:00
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
**** Solaris 2.6 and 7: the Compose key does not work.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is a bug in Motif in Solaris. Supposedly it has been fixed for
the next major release of Solaris. However, if someone with Sun
support complains to Sun about the bug, they may release a patch.
If you do this, mention Sun bug #4188711.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
One workaround is to use a locale that allows non-ASCII characters.
For example, before invoking emacs, set the LC_ALL environment
variable to "en_US" (American English). The directory /usr/lib/locale
lists the supported locales; any locale other than "C" or "POSIX"
should do.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
pen@lysator.liu.se says (Feb 1998) that the Compose key does work
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
if you link with the MIT X11 libraries instead of the Solaris X11 libraries.
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
* etc/PROBLEMS: Move some entries to the legacy section.
2021-11-02 22:43:31 +00:00
** OpenBSD
*** OpenBSD 4.0 macppc: Segfault during dumping.
The build aborts with signal 11 when the command './temacs --batch
--load loadup bootstrap' tries to load files.el. A workaround seems
to be to reduce the level of compiler optimization used during the
build (from -O2 to -O1). It is possible this is an OpenBSD
GCC problem specific to the macppc architecture, possibly only
occurring with older versions of GCC (e.g. 3.3.5).
** AIX
*** AIX 4.3.x or 4.4: Compiling fails.
This could happen if you use /bin/c89 as your compiler, instead of
the default 'cc'. /bin/c89 treats certain warnings, such as benign
redefinitions of macros, as errors, and fails the build. A solution
is to use the default compiler 'cc'.
*** AIX 4: Some programs fail when run in a Shell buffer
with an error message like No terminfo entry for "unknown".
On AIX, many terminal type definitions are not installed by default.
'unknown' is one of them. Install the "Special Generic Terminal
Definitions" to make them defined.
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
** MS-Windows 95, 98, ME, and NT
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
* etc/PROBLEMS: Move some entries to the legacy section.
2021-11-02 22:43:31 +00:00
*** MS-Windows 95: Networking.
To support server sockets, Emacs loads ws2_32.dll. If this file is
missing, all Emacs networking features are disabled.
Old versions of Windows 95 may not have the required DLL. To use
Emacs's networking features on Windows 95, you must install the
"Windows Socket 2" update available from MicroSoft's support Web.
*** MS-Windows NT4: addpm fails to run, complaining about Shell32.dll
This is likely to happen because Shell32.dll shipped with NT4 lacks
the updates required by Emacs. Installing Internet Explorer 4 solves
the problem. Note that it is NOT enough to install IE6, because doing
so will not install the Shell32.dll update.
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
*** MS-Windows NT/95: Problems running Perl under Emacs
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'perl -de 0' just hangs when executed in an Emacs subshell.
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
The fault lies with Perl (indirectly with Windows NT/95).
The problem is that the Perl debugger explicitly opens a connection to
"CON", which is the DOS/NT equivalent of "/dev/tty", for interacting
with the user.
On Unix, this is okay, because Emacs (or the shell?) creates a
pseudo-tty so that /dev/tty is really the pipe Emacs is using to
communicate with the subprocess.
On NT, this fails because CON always refers to the handle for the
relevant console (approximately equivalent to a tty), and cannot be
redirected to refer to the pipe Emacs assigned to the subprocess as
stdin.
A workaround is to modify perldb.pl to use STDIN/STDOUT instead of CON.
For Perl 4:
*** PERL/LIB/PERLDB.PL.orig Wed May 26 08:24:18 1993
--- PERL/LIB/PERLDB.PL Mon Jul 01 15:28:16 1996
***************
*** 68,74 ****
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile=".perldb";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
else {
! $console = "con";
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile="perldb.ini";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
--- 68,74 ----
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile=".perldb";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
else {
! $console = "";
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile="perldb.ini";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
For Perl 5:
*** perl/5.001/lib/perl5db.pl.orig Sun Jun 04 21:13:40 1995
--- perl/5.001/lib/perl5db.pl Mon Jul 01 17:00:08 1996
***************
*** 22,28 ****
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile=".perldb";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
elsif (-e "con") {
! $console = "con";
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile="perldb.ini";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
else {
--- 22,28 ----
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile=".perldb";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
elsif (-e "con") {
! $console = "";
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
$rcfile="perldb.ini";
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
}
else {
* etc/PROBLEMS: Move some entries to the legacy section.
2021-11-02 22:43:31 +00:00
*** MS-Windows NT/95: Help text in tooltips does not work
Windows 95 and Windows NT up to version 4.0 do not support help text
for menus. Help text is only available in later versions of Windows.
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
*** MS-Windows 95: Alt-f6 does not get through to Emacs.
This character seems to be trapped by the kernel in Windows 95.
You can enter M-f6 by typing ESC f6.
*** MS-Windows 95/98/ME: subprocesses do not terminate properly.
This is a limitation of the Operating System, and can cause problems
Update location of Emacs on MS Windows FAQ
2013-08-27 19:40:24 +00:00
when shutting down Windows. Ensure that all subprocesses are exited
cleanly before exiting Emacs. For more details, see the Emacs on MS
Windows FAQ (info manual "efaq-w32").
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
*** MS-Windows 95/98/ME: crashes when Emacs invokes non-existent programs.
When a program you are trying to run is not found on the PATH,
Windows might respond by crashing or locking up your system. In
particular, this has been reported when trying to compile a Java
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
program in JDEE when javac.exe is installed, but not on the system PATH.
From Eric S. Raymond: More reorganization to exile old stuff to the pre-2000 section. I looked up end-of-life dates for a bunch of old Unixes to check.
2004-09-04 12:25:43 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** MS-DOS
#
1999-10-03 12:39:42 +00:00
(MS-DOS): Document the problems on Vista.
2008-12-19 11:13:11 +00:00
*** When compiling with DJGPP on MS-Windows NT or later, "config msdos" fails.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
If the error message is "VDM has been already loaded", this is because
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
Windows has a program called 'redir.exe' that is incompatible with a
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
program by the same name supplied with DJGPP, which is used by
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
config.bat. To resolve this, move the DJGPP's 'bin' subdirectory to
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
the front of your PATH environment variable.
#
1999-10-03 12:39:42 +00:00
Mention problems with username in the MS-DOS port on MS-Windows.
2009-02-24 19:09:03 +00:00
*** When Emacs compiled with DJGPP runs on Windows 2000 and later, it cannot
find your HOME directory.
This was reported to happen when you click on "Save for future
sessions" button in a Customize buffer. You might see an error
message like this one:
basic-save-buffer-2: c:/FOO/BAR/~dosuser/: no such directory
(The telltale sign is the "~USER" part at the end of the directory
Emacs complains about, where USER is your username or the literal
string "dosuser", which is the default username set up by the DJGPP
startup file DJGPP.ENV.)
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
This happens when the functions 'user-login-name' and
'user-real-login-name' return different strings for your username as
Mention problems with username in the MS-DOS port on MS-Windows.
2009-02-24 19:09:03 +00:00
Emacs sees it. To correct this, make sure both USER and USERNAME
environment variables are set to the same value. Windows 2000 and
later sets USERNAME, so if you want to keep that, make sure USER is
set to the same value. If you don't want to set USER globally, you
can do it in the [emacs] section of your DJGPP.ENV file.
(MS-DOS): Document the problems on Vista.
2008-12-19 11:13:11 +00:00
*** When Emacs compiled with DJGPP runs on Vista, it runs out of memory.
If Emacs running on Vista displays "!MEM FULL!" in the mode line, you
are hitting the memory allocation bugs in the Vista DPMI server. See
msdos/INSTALL for how to work around these bugs (search for "Vista").
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** When compiling with DJGPP on MS-Windows 95, Make fails for some targets
like make-docfile.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if long file name support (the setting of environment
variable LFN) when Emacs distribution was unpacked and during
(MS-DOS): Document the problems on Vista.
2008-12-19 11:13:11 +00:00
compilation are not the same. See msdos/INSTALL for the explanation
of how to avoid this problem.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs compiled with DJGPP complains at startup:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
"Wrong type of argument: internal-facep, msdos-menu-active-face"
#
1999-10-03 12:39:42 +00:00
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
This can happen if you define an environment variable 'TERM'. Emacs
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
on MSDOS uses an internal terminal emulator which is disabled if the
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
value of 'TERM' is anything but the string "internal". Emacs then
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
works as if its terminal were a dumb glass teletype that doesn't
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
support faces. To work around this, arrange for 'TERM' to be
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
undefined when Emacs runs. The best way to do that is to add an
[emacs] section to the DJGPP.ENV file which defines an empty value for
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
'TERM'; this way, only Emacs gets the empty value, while the rest of
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
your system works as before.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** MS-DOS: Emacs crashes at startup.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some users report that Emacs 19.29 requires dpmi memory management,
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
and crashes on startup if the system does not have it. We don't
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
know why this happens--perhaps these machines don't have enough real
memory, or perhaps something is wrong in Emacs or the compiler.
However, arranging to use dpmi support is a workaround.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
You can find out if you have a dpmi host by running go32 without
arguments; it will tell you if it uses dpmi memory. For more
information about dpmi memory, consult the djgpp FAQ. (djgpp
is the GNU C compiler as packaged for MSDOS.)
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Compiling Emacs under MSDOS is extremely sensitive for proper memory
configuration. If you experience problems during compilation, consider
removing some or all memory resident programs (notably disk caches)
and make sure that your memory managers are properly configured. See
the djgpp faq for configuration hints.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Emacs compiled with DJGPP for MS-DOS/MS-Windows cannot access files
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
in the directory with the special name 'dev' under the root of any
drive, e.g. 'c:/dev'.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This is an unfortunate side-effect of the support for Unix-style
device names such as /dev/null in the DJGPP runtime library. A
work-around is to rename the problem directory to another name.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** MS-DOS: Emacs compiled for MSDOS cannot find some Lisp files, or other
run-time support files, when long filename support is enabled.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Usually, this problem will manifest itself when Emacs exits
immediately after flashing the startup screen, because it cannot find
the Lisp files it needs to load at startup. Redirect Emacs stdout
and stderr to a file to see the error message printed by Emacs.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another manifestation of this problem is that Emacs is unable to load
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
the support for editing program sources in languages such as C and Lisp.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This can happen if the Emacs distribution was unzipped without LFN
support, thus causing long filenames to be truncated to the first 6
characters and a numeric tail that Windows 95 normally attaches to it.
You should unzip the files again with a utility that supports long
filenames (such as djtar from DJGPP or InfoZip's UnZip program
(MS-DOS): Document the problems on Vista.
2008-12-19 11:13:11 +00:00
compiled with DJGPP v2). The file msdos/INSTALL explains this issue
in more detail.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Another possible reason for such failures is that Emacs compiled for
MSDOS is used on Windows NT, where long file names are not supported
by this version of Emacs, but the distribution was unpacked by an
unzip program that preserved the long file names instead of truncating
them to DOS 8+3 limits. To be useful on NT, the MSDOS port of Emacs
must be unzipped by a DOS utility, so that long file names are
properly truncated.
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Document Bug#31305.
2018-05-18 16:24:04 +00:00
** Apple Macintosh operating systems
*** OS X 10.9 and earlier: symlinks autocomplete as directories
Autocompleting the name of a symbolic link incorrectly appends "/".
Building and running Emacs on OS X 10.10 (or later) fixes the problem.
Older operating systems are no longer supported by Apple.
https://bugs.gnu.org/31305
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Archaic window managers and toolkits
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove more obsolete stuff, modernize exec-shield a bit, downplay LessTif (Motif is free software now).
2014-01-23 02:11:13 +00:00
*** Open Look: Under Open Look, the Emacs window disappears when you type M-q.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
Some versions of the Open Look window manager interpret M-q as a quit
command for whatever window you are typing at. If you want to use
Emacs with that window manager, you should try to configure the window
manager to use some other command. You can disable the
shortcut keys entirely by adding this line to ~/.OWdefaults:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
OpenWindows.WindowMenuAccelerators: False
#
1999-10-03 12:39:42 +00:00
* etc/PROBLEMS: Remove some more obsolete information. Also some re-filling.
2010-05-28 03:23:08 +00:00
*** twm: A position you specified in .Xdefaults is ignored, using twm.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
twm normally ignores "program-specified" positions.
Prefer straight quoting in some etc text files These files are plain text and might be used by non-Emacs apps. They’re mostly ASCII, so just use straight quotes.
2015-08-26 21:05:43 +00:00
You can tell it to obey them with this command in your '.twmrc' file:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
UsePPosition "on" #allow clients to request a position
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
** Bugs related to old DEC hardware
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** The Compose key on a DEC keyboard does not work as Meta key.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This shell command should fix it:
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
xmodmap -e 'keycode 0xb1 = Meta_L'
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
*** Keyboard input gets confused after a beep when using a DECserver
as a concentrator.
#
1999-10-03 12:39:42 +00:00
Massively rearranged by category, to make environment features and symptoms easier to find. Bugs relating to 20th-century systems moved to the end. Most problem headers changed to "object: variation" format.
2004-08-21 11:31:45 +00:00
This problem seems to be a matter of configuring the DECserver to use
7 bit characters rather than 8 bit characters.
Use outline-mode.
2001-12-06 09:26:21 +00:00
Switch to standard GPL text for license.
2007-02-11 01:18:25 +00:00
This file is part of GNU Emacs.
Add copyright notice and permission notice.
2002-11-06 05:11:59 +00:00
Switch to recommended form of GPLv3 permissions notice.
2008-05-15 07:32:14 +00:00
GNU Emacs is free software: you can redistribute it and/or modify
Switch to standard GPL text for license.
2007-02-11 01:18:25 +00:00
it under the terms of the GNU General Public License as published by
Switch to recommended form of GPLv3 permissions notice.
2008-05-15 07:32:14 +00:00
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Add copyright notice and permission notice.
2002-11-06 05:11:59 +00:00
Switch to standard GPL text for license.
2007-02-11 01:18:25 +00:00
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
Prefer HTTPS to FTP and HTTP in documentation Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
2017-09-13 22:52:52 +00:00
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
Switch to standard GPL text for license.
2007-02-11 01:18:25 +00:00
Use outline-mode.
2001-12-06 09:26:21 +00:00
Local variables:
mode: outline
Prevent pasting a region twice on an xterm or rxvt in X.
2008-08-26 20:02:17 +00:00
paragraph-separate: "[ ]*$"
Use outline-mode.
2001-12-06 09:26:21 +00:00
end:
Reference in New Issue Copy Permalink