F10 -- can't enable DPMS power save
Sam Varshavchik
mrsam at courier-mta.com
Wed Dec 3 03:00:15 UTC 2008
After upgrading to Fedora 10, I can't seem to set one of my laptops to
automatically power its LCD backlight off, when idle.
The only settings that I can find in Gnome menus are System → Preferences →
Look And Feel → Screen Saver, which runs gnome-screensaver. I have "Activate
screensaver when computer is idle" checked. Under "Power Management" I have
"Put display to sleep when inactive for 20 minutes", "Set display brightness
to: 0%", and "Dim display when idle" checked.
However, the laptop's LCD backlight stays off.
"xset q" shows the following:
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Enabled
Monitor is On
So, despite the screensaver settings, x.org still has its DPMS knobs turned
off. After RTFMing, I manually add the following to xorg.conf:
Section "ServerFlags"
Option "BlankTime" "20"
Option "StandbyTime" "20"
Option "SuspendTime" "20"
Option "OffTime" "20"
EndSection
and
Option "dpms" "yes"
in the Monitor settings. After restarting X, xset still shows that the DPMS
knobs are off.
"xset force dpms off" turns off the backlight immediately, so x.org
definitely knows what to do with my hardware, it just doesn't seem to do it
automatically. This laptop is driven by x.org's radeon driver, the chip is
RV250.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/fedora-list/attachments/20081202/fc321878/attachment-0001.sig>
More information about the fedora-list
mailing list