Can you run a test to see if this bug is RC6 related? That can be done by disabling RC6 with the following steps:
To disable RC6, do the following: Hold down Left-Shift key to enter the Grub menu on boot Hit 'e' to edit the kernel command line Append i915.i915_enable_rc6=0 as a kernel boot parameter For example: linux /boot/vmlinuz-3.2.0-17-generic <...> quiet splash vt.handoff=7 i915.i915_enable_rc6=0 Press Ctrl-x to boot It would be great if you could test this and report back if your issue is resolved with RC6 disabled. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964721 Title: purple screen and hang at boot after upgrading to linux- headers-3.2.0-20 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/964721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
