Hi I have the same problem on my Ibook. I create different upstream bug reports in many project because I don't where is exactly the bug. I can try to explain you why I don't know where is it.
The different power-manager like gnome-power-manager for Gnome or Powerdevil for Kde call the same method that this command : xset dpms force off So, they use DPMS to switch off the screen. But, when you check the xorg.0.log, you can see this line : "No DPMS capabilities specified; RGB/Color Display". So, on Ibook, it isn't possible to switch off the screen with DPMS. The power screen is managed by the Power Management Unit (PMU). I have created bug reports in Gnome power management : https://bugzilla.gnome.org/show_bug.cgi?id=550524 There is also a bug report for the radeon driver : http://bugs.freedesktop.org/show_bug.cgi?id=19168 And in launchpad for ubuntu : https://bugs.launchpad.net/debian/+source/xserver-xorg-video-ati/+bug/249568 https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/117836 You can read this reports and tell me if you have an idea to solve this bug. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
