I have a laptop powered by fresh installation of
Ubuntu 12.04 with
XFCE. Before I have used a default opensource ATI driver. For several days I have been using
After some time of inactivity the brightness of display is automatically reduced to a minimal level. When I return back to the laptop by pressing any key or by moving mouse, the brightness level is automatically set to the largest (!) one. It really annoys.
- Do I understand correctly that the idle timeout is managed by X.org/DPMS settings?
- Who control the level of brightness which is restored after inactivity? I have not managed to find such settings in the Control Panel of ATI. I really want to change them.
There were no such problem with the opensource driver.
laptop-tools are disabled.