[CentOS] Strange screen-blanking problem

Oliver Schulze L. oliver at samera.com.py
Thu Sep 7 20:16:37 UTC 2006

It might be your monitor, try using a new monitor.


Bart Schaefer wrote:
> My desktop at work is CentOS 3.8, using the motherboard's onboard
> Intel 865 (82865G) graphics controller.  Most of the day today I've
> been having sporadic instances where the screen simply goes black for
> about 2 seconds.  It has nothing to do with whether I'm using the
> mouse or keyboard (or not) and the delay before it comes back on is
> not correlated to whether I *continue* to use the mouse or keyboard.
> This has happened a few times before.  Sometimes the system is up for
> weeks at a time without showing any sign of this, sometimes it
> re-appears every few days. I've tried shutting down and restarting
> X11, but that doesn't get rid of it -- it seems only a full reboot
> will do so.  And the longer I wait to reboot, the more often it
> happens.
> It doesn't seem to be related to the clock or to ntp (I've seen ntp
> clock syncs trip the screen saver in X11 before), I've tried shutting
> down ntpd without any change in the behavior and the system clock is
> not drifting from other machines on the LAN either way.  There's
> nothing in the log files indicating any activity that might be
> connected.
> Anyone have a clue where I might begin looking?  Having to reboot a
> linux machine with only 6 days of uptime galls me.
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Oliver Schulze L.
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