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Tell how to completely disable ACPI. Add warnings about how bad

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kharma it will be to disable some or all of acpi on ia64 or amd64 (are
there other non-i386 platforms that FreeBSD supports with ACPI?).

Submitted by: Ryan Losh
Approved by: re@ (rwatson)
This commit is contained in:
Warner Losh 2003-05-18 04:21:38 +00:00
parent 1c500307d1
commit 4e3148f429
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=115128
1 changed files with 12 additions and 0 deletions
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12
share/man/man4/acpi.4
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@ -199,6 +199,18 @@ Output from the
code follows the same format, but
the module name is uppercased.
.Pp
To disable the
.Nm
driver completely, set the kernel environment variable
.Va hint.acpi.0.disabled
to
.Dq 1 .
Some i386 machines totally fail to operate with some or all of ACPI disabled.
Other i386 machines fail with ACPI enabled.
Non-i386 platforms do not support operating systems which do not use ACPI.
Disabling all or part of ACPI on non-i386 platforms may result in a
non-functional system.
.Pp
The
.Nm
driver comprises a set of drivers, which may be selectively disabled