Lots of things to try, but lets start with appending i915.i915_enable_rc6=0 to your kernel commandline.
** Summary changed: - 13.04 goes into hard lock mode randomly. + [snb] 13.04 goes into hard lock mode randomly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1188774 Title: [snb] 13.04 goes into hard lock mode randomly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1188774/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
