Red Hat Bugzilla – Bug 397931
gnome-power-manager disables screen blanking
Last modified: 2013-03-05 22:53:58 EST
Description of problem: Since installing fedora 8 screen blanking on my laptop does not work, whatever settings I use in pm-utils preferences. If I set blanking manually from a terminal using "xset dpms 0 0 300", after a few seconds dpms has been reset to 0 0 0. Killing gnome-power-manager fixes the problem, at the cost of losing the rest of its functionality. Version-Release number of selected component (if applicable): pm-utils-0.99.4-6.fc8 How reproducible: Unavoidable: My screen never blanks, whatever I do. Steps to Reproduce: 1.Do "xset dpms 0 0 300" from a terminal. "xset -q" shows these settings. 2.After a few seconds do "xset -q" again and settings are changed to 0 0 0 3. Actual results: Screen never blanks, even if blanking is set im pm-util preferences or in gnome-screensaver. Trying to set blanking manually as above is thwarted by pm-utils. Expected results: Screen should blank when machine is idle Additional info: I have uninstalled gnome-screensaver to be sure the problem is not related to that. After killing gnome-power-manager I can set blanking with "xset dpms 0 0 300" and it works fine.
When killing gnome-power-manager helps, I believe it is a problem of this package and not pm-utils. If you have any information on how pm-utils is involved (which I do not think, because it only runs when you suspend/hibernate/resume/thaw) then please reassign this bug to pm-utils.
Right, g-p-m controls the blanking in the active session, as xset does not have inhibit controls or even a notion of multiple sessions active on one machine. Why do you want to use xset? Doesn't the screen blanking in g-p-m work for you?
It is working fine for me at the moment in Fedora 9 so I'm marking it NOTABUG. In Fedora 8 g-p-m screen blanking would blank the screen without turning off the backlight (on two different laptops and my workstation).