It might be your monitor, try using a new monitor. HTH Oliver 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. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- Oliver Schulze L. Get my e-mail after a captcha test in: http://tinymailto.com/oliver