Force the screen brightness level on the framework laptop in Linux.

Ever since enabling adaptive brightness manager, my brightness is far lower on reboot. I suspect it is saving the actual brightness instead of the set brightness. This works around the issue by forcing the brightness back to my desired level.

ansible/roles/framework_laptop/files/screen_brightness_tmpfiles.conf

@@ -0,0 +1,2 @@
+# Set screen brightness. Ever since enabling adaptive brightness management, my brightness ends up sinking lower on re-boots (I suspect it is saving the actual brightness rather than the set brightness). This forces the brightness back to the level I prefer.
+w- /sys/class/backlight/amdgpu_bl0/brightness - - - - 85

ansible/roles/framework_laptop/tasks/linux.yaml

@@ -7,3 +7,14 @@
     daemon_reload: yes
   loop:
     - systemd-udev-settle.service
+
+- name: Install tmpfiles.d configuration
+  when: hwpstate is defined and hwpstate and cores is defined
+  copy:
+    src: "files/{{ item }}_tmpfiles.conf"
+    dest: "/etc/tmpfiles.d/{{ item }}.conf"
+    mode: 0644
+    owner: root
+    group: wheel
+  loop:
+    - screen_brightness