Contra to my earlier "no obvious reason", I think this lockup occurs when playing HTML5 video in the Firefox browser (I don't have flashplugin installed). I don't have experience with other browsers to compare. The video starts getting slowed up and then freezes entirely, along with all graphics, while the audio continues; when the system unfreezes, typically the multimonitor settings seem to reset, with my laptop screen mirroring my external display (normally the laptop screen is disabled), and it is not possible then to alter the multimonitor settings back to where they were.
I'm running Mir+XMir, but I'm not sure if that's relevant -- will fall back to plain X and see if this behaviour reproduces itself. This may be a duplicate of https://bugs.launchpad.net/ubuntu/+source /xserver-xorg-video-intel/+bug/1223332. -- 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/1238210 Title: [sandybridge-m-gt2+] GPU lockup IPEHR: 0x7a000002 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1238210/+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
