I faced this same problem. Like dynaguy, I just updated my kernel and all is working well now : http://partiallysanedeveloper.blogspot.co.uk/2012/05/ivy-bridge-hd4000 -linux-freeze.html?m=1
Maybe you would give it a try. -- 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 completely freezes frequently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
