Can be a problem with the open drivers then. Have you tried running in 3D with proprietary drivers enbled (if availables). to launch the app jockey-gtk in terminal --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/999270 Title: Ubuntu 12.04 LT frequently freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/999270/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs