Red Hat Bugzilla – Bug 849607
dpms setting not sticking
Last modified: 2013-07-03 22:01:02 EDT
Description of problem:
I have always had my computer set to blank screen after 10 minutes. This is still being shown as 10 minutes when I do 'user name' (top right corner) -> system settings -> brightness and lock.
But underneath, running 'xset q':
soon after log in, it shows:
prefer blanking: yes allow exposures: yes
timeout: 600 cycle: 600
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Enabled
Monitor is On
But then the timeout and cycle changes to zero; and the screen never goes to sleep.
I leave a mount of applications running all the time but expect my screen to switch off after a while. this is not working in the last few week.
I tried 'xset dpms 10 10 10', or 60 60 60, or have the screensaver blanking right away and it does turn off, but then it wakes up again after a while on its own, untouched; and I would find the values reset to zero again. same with the screensaver values.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
screen does not blank on its own.
screen goes blank after 10 minutes of inactivity.
I have not changed how I use my computer at all; this problem is new in the last few week. The closest I can think of is upowerd, but it may be another party - please feel free to re-assign. The system is in gnome 3.4 fallback mode.
I cannot figure out what component is periodically overwriting the screensaver/dpms values to zero. I have tried setting them to 10, 60, 600 - 600 being 10 minutes as I have configured in the GUI - but the setting don't last - e.g. screen blank then wake up by itself after a while, or screensaver blank then unblank and xset q keep showing those values being reset to zero after a while.
As I say, this problem is ony a few weeks old. I keep my system up to date f17.
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Don't remember it being a problem towards end of f18. Will file new bug if f19 doesn't sleep.