Are you able to reliably reproduce it by playing that video in totem? If not, out of 10 tries how many times does it happen?
If you can repro it with that video (or another similar video), please attach to this bug or provide a pointer to an online source. Has your system had other similar freezes recently, unrelated to video playback? Bug 946899 just describes the symptoms of a GPU hang, but they can be caused by any number of underlying reasons so we treat each instance as a distinct bug unless the i915_error_state matches or upstream says it's a dupe. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete ** Summary changed: - [clarkdale] False GPU lockup IPEHR: 0x02000000 + [clarkdale] GPU lockup IPEHR: 0x02000000 -- 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/1112871 Title: [clarkdale] GPU lockup IPEHR: 0x02000000 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1112871/+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