Does this by any chance resemble the issue described at http://apachelog.wordpress.com/2010/02/24/when-x-decides-to-crash/
** Package changed: kubuntu-meta (Ubuntu) => kdebase-workspace (Ubuntu) -- Karmic Cant login in KDE, but in GNOME https://bugs.launchpad.net/bugs/527478 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs