This happens to me, as well. I have switched to gnome-screensaver in hopes that it fixes the problem, but unfortunately gnome-screensaver is not configurable under XFCE so I am somewhat dissatisfied. This crash only occurs once every few weeks, so I have not been able to catch it in gdb.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xscreensaver in Ubuntu. https://bugs.launchpad.net/bugs/966129 Title: Xscreensaver daemon crash returned to unlocked desktop Status in “xscreensaver” package in Ubuntu: New Bug description: Ubuntu 11.10, xscreensaver 5.14-1ubuntu1. I use xscreensaver as my main screensaver and I've replaced the gnome- screensaver using the command suggested in the xscreensaver man page (sudo ln -sf /usr/bin/xscreensaver-command /usr/bin/gnome-screensaver- command). Recently it's been crashing more than usual, either partial (one screen hangs, the other works ok), or fully (can't lock screen or activate screensaver without restarting daemon). This does seem to happen more frequently when I've left my VirtualBox VM running, but I'm not sure it's related. At least twice now the crash has caused the OS to return to my desktop - unlocked - which seems like a pretty serious security concern, especially as it won't automatically relock either until I've manually restarted the xscreensaver daemon. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xscreensaver 5.14-1ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-16.29-generic 3.0.20 Uname: Linux 3.0.0-16-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Tue Mar 27 11:52:54 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: xscreensaver UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/966129/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp