Does this happen only during a KDE session? If so, this might a symptom of #550042. The xscreensaver daemon should not run at the same time as KDE's own screen saver service.
Try this: as root, remove each of the following two files if it exists: /etc/X11/Xsession.d/80xscreensaver_start /etc/xdg/autostart/xscreensaver-daemon.desktop Note that now the xscreensaver daemon will not run automatically for any X session, even non-KDE sessions, unless you configure it manually. Regards, Yitz -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org