Hi all, I should have asked this earlier. Could anyone affected please test disabling rc6 power management?
To do that, hold shift to display GRUB, but instead of pressing enter to load your OS, press 'e' to edit the boot parameters. 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 See if this solves the problem. I'm testing myself and will report back ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/960005 Title: Intel GPU lockup on laptop suspend - display stuck on whatever was shown last before suspend. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/960005/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp