I have the same issue, and I also found some other report of it: http://askubuntu.com/questions/614867/frequent-xorg-crashes-with-radeon-r9-280x https://bbs.archlinux.org/viewtopic.php?id=186388
I'll try the workaround proposed in https://bugzilla.kernel.org/show_bug.cgi?id=62721 (adding "radeon.hard_reset=1") and see if that helps. ** Bug watch added: Linux Kernel Bug Tracker #62721 http://bugzilla.kernel.org/show_bug.cgi?id=62721 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1392727 Title: radeon 0000:02:00.0: ring 0 stalled for more than 10008msec To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1392727/+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
