Hi I have the same problem 3 years ago and I never solve it. I create a lot of bug reports in various project : In gnome-power-manager : https://bugzilla.gnome.org/show_bug.cgi?id=550524 In radeon driver : https://bugs.freedesktop.org/show_bug.cgi?id=19168
The problem is that I don't know where is exactly the bug. On Xorg, Radeon driver, gnome-power-manager ? Gnome-power-manager switch off backlight calling this similar command : xset dpms force off. But on Ibook, there isn't DPMS feature. The xorg server logs this in /var/log/Xorg.0.log : (II) RADEON(0): No DPMS capabilities specified So, when the command is called, the screen is black but the backlight is always on.... The solution to switch off backlight is to put backlight to 0. Please help me :-p ** Bug watch added: GNOME Bug Tracker #550524 https://bugzilla.gnome.org/show_bug.cgi?id=550524 ** Bug watch added: freedesktop.org Bugzilla #19168 https://bugs.freedesktop.org/show_bug.cgi?id=19168 -- Backlight isn't turned off after inactivity on iBook G4 https://bugs.launchpad.net/bugs/249568 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
