Ubuntu
gnome-desktop3 package

  1. Bug #947919
  2. Comment #5

Comment 5 for bug 947919

Revision history for this message
Dana Goyette (danagoyette) wrote :

In my case, I'm using an nvidia card on a Thinkpad, with EnableBrightnessControl set.

On at least the Intel driver, xrandr --verbose presents both 'BACKLIGHT' and 'Backlight'.
The nvidia driver (with EnableBrightnessControl set) offers only the latter.

libgnome-desktop (used by gnome-settings-daemon) seems to look for only the former.
xbacklight looks for both names; this must be why it works when Gnome does not.

That other bug report (#947748) has several different issues lumped into it.
I'd like to remove the "duplicate" flag, since this report mentions the xbacklight behavior.