This bug can be fixed by restoring the xrandr configuration, which requires one to run the following command:
$ xrandr --output LVDS --set BACKLIGHT_CONTROL native
Which fixes the buggy config (original config attached).
This bug can be fixed by restoring the xrandr configuration, which requires one to run the following command:
$ xrandr --output LVDS --set BACKLIGHT_CONTROL native
Which fixes the buggy config (original config attached).