On 08/08/2012 07:42 AM, Colin Guthrie wrote:
Generally speaking these settings are done in the display environment
GUIs (i.e. Gnome and KDE) thus avoiding having to call xset directly by
the user or in scripts etc. This is just a command line interface to
things the DE's should wrap already.
So I'd go looking for those bits breaking and/or something in your user
account messing up. i.e. try it with a fresh boot and logging into a
fresh user account and see if the problem still occurs. That might help
narrow down where the real problem lies.
This is getting muddy. I've done a lot of cauldron updating since my
last logout/reboot, and when I tried a fresh boot GDM hung repeatedly,
and I had to switch to KDM.
The problem doesn't occur with a fresh user, but it no longer occurs on
my userid either. Either it's a function of the DM, or else the "xset
-dpms" I did previously is sticky:
[root@ftgme2 ftg]# xset q
Keyboard Control:
...
DPMS (Energy Star):
Standby: 600 Suspend: 600 Off: 600
DPMS is Disabled
But knowing that dpms is involved got some google results, and I think
the problem is https://bugs.kde.org/show_bug.cgi?id=295814
The similarity between my case and the reported ones is that I had set
all Power Management off, so that the screen would never dim or
disable. I had done this because I have some WINE stuff run overnight
by cron, and when KDE blanks or disables the screen, graphical apps
won't start.
According to the report, a disabled PM enables dpms with a random set of
numbers. I just happened to get 30 seconds. One poor sod had a
1-second timeout.