I've been seeing the same glitches, starting when the updated mesa packages were pushed out on 2/20: http://ubuntuforums.org/showthread.php?t=2206883
At exactly the same time the glitches appeared, the primus bridge quit working for Bumblebee: https://github.com/amonakov/primus/issues/133 Backleveling mesa to the packages in the saucy repository causes the graphical glitches to disappear and everything looks normal again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1282867 Title: Many bugs in rendering with lockups, likely caused by SNA To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1282867/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
