I don't think this is relate to xorg#21480 ... but I do think launchpad #395855 is probably a dupe of this. xorg#22383 seems more closely related. xorg#22336 seems like a red herring.
-- Xorg driver locks up and screen goes blank (black) - i915_gem_retire_work_handler+0x2a/0x70 https://bugs.launchpad.net/bugs/384960 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ 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