Unpredictable machine hangs for me too. Mouse freeze and keyboard unresponsive.
Intel Core i5 3570K 3.4GHz LGA 1155 Processor Intel Core i5 3570K 3.4GHz LGA 1155 Gigabyte Z77X-UD3H 8GB Corsair DDR3 Vengeance Using the onboard HD4000 GPU -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 64bit completely freezes frequently To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/993187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
