Please take a look at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/476874/comments/4 it looks like a bug in gdm.
** Package changed: xserver-xorg-video-intel (Ubuntu) => gdm (Ubuntu) -- Cannot start X after today Karmic upgrade https://bugs.launchpad.net/bugs/476874 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