Red Hat Bugzilla – Bug 450517
Total system freeze when coming out of screensaver
Last modified: 2018-04-11 03:17:00 EDT
Description of problem: I am running KDE. The screensaver was on due to idle (Flux GL screensaver). When I pressed a key the system completely froze. It did not respond to ctrl-alt-f1 ,ctrl-alt-backspace, ctrl-alt-del. I had to turn it off and on again. Version-Release number of selected component (if applicable): xorg-x11-server-Xorg-1.3.0.0-44.fc8 xorg-x11-drv-i810-2.1.1-7.fc8 kdebase-3.5.9-7.fc8 kernel-2.6.25.4-10.fc8 $ rpm -qa |grep -i save libXScrnSaver-1.1.2-3.fc8 kpowersave-0.7.3-3.fc8 How reproducible: Intermittent. Steps to Reproduce: 1. Set screensaver to Flux (GL) in KDE Control Center 2. Wait for screensaver to kick in. 3. Press a key to return to session. Actual results: The screensaver froze (a password prompt was not issued). Normally this works, but just now it froze my system completely. Expected results: Prompt for password to unlock screensaver. Additional info: HP 6710b laptop with Intel GM965 chipset and X3100 integrated graphics. 1 GB RAM.
Created attachment 308677 [details] Xorg log from session that froze
kdeartwork-3.5.9-1.fc8
Do you have by chance another computer, so you could find out whether really the computer is dead, or just xorg? Or if you would be able and willing to investigate a little bit more with recipes on http://xorg.freedesktop.org/wiki/Development/Documentation/ServerDebugging it would be awesome.
It happened again. I ssh'd in and found that the screensaver process (can't remember exact process name, something .kss) was using 100% CPU). I killed the process from the remote machine and then system came back.
OK, then (surprisingly ;)) Xorg is not to be blamed in this case, reassigning back to KDE.
could you please try other openGL apps (none KDE apps) and see if you have the same problem? Thanks
Do you mean openGL screensavers, or just apps in general? foobillard, quake3, tremulous, machineball, supertuxkart all seem to work fine without crashing. I have had problems with extremetuxracer crashing X; see https://bugzilla.redhat.com/show_bug.cgi?id=448278
Had exactly the same problem with the Solar Winds screen saver.
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