I had this problem on 12.04 LTS testing the LTS-S hardware enablement packages. The upstream bug report's fix fixed the problem when I applied it on top of xserver-xorg-video-intel-lts- saucy_2.99.904-0ubuntu2~~6ppa1. The patch is also attached here.
** Package changed: xorg (Ubuntu) => xserver-xorg-video-intel (Ubuntu) ** Bug watch added: freedesktop.org Bugzilla #71328 https://bugs.freedesktop.org/show_bug.cgi?id=71328 ** Also affects: xserver-xorg-video-intel via https://bugs.freedesktop.org/show_bug.cgi?id=71328 Importance: Unknown Status: Unknown ** Patch added: "0001-sna-gen7-Request-secure-batches-for-Haswell-vsync.patch" https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1243261/+attachment/3939075/+files/0001-sna-gen7-Request-secure-batches-for-Haswell-vsync.patch ** Also affects: xserver-xorg-video-intel-lts-saucy (Ubuntu) Importance: Undecided Status: New ** Changed in: xserver-xorg-video-intel-lts-saucy (Ubuntu) Status: New => Confirmed ** Summary changed: - apparent GPU hang on haswell laptop when playing movie on libreoffice + apparent GPU hang on haswell laptop when playing movie using XVideo output -- 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/1243261 Title: apparent GPU hang on haswell laptop when playing movie using XVideo output To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1243261/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
