Ubuntu
gnome-power-manager package

  1. Bug #621006
  2. Comment #2

Comment 2 for bug 621006

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

This same BadAtom also happens for me with the open-source Radeon driver, yet does not happen with the binary driver.
It looks like the problem most likely lies in the "fallback" brightness-control methods used when the xrandr backlight property is not supported.
Note that fglrx supports xbacklight, but radeon does not.

See also: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/534677