Stopping and restarting X server makes the problem go away. Here are problem case and problem-free case Xorg logs - Xorg.0.log.good is without problem after restart, Xorg.0.log is first log when screen is corrupted.
** Attachment added: "Xorg log - problem case." https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1075660/+attachment/3425942/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1075660 Title: Boots to corrupted/unusable screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1075660/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
