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 Desktop Packages, 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 Status in xserver-xorg-video-ati package in Ubuntu: Invalid Bug description: Screen freezes and displays checkerboard like corruption. Kernel log contains: Nov 14 07:44:35 gromit kernel: [211056.796329] radeon 0000:02:00.0: ring 0 stalled for more than 10000msec Nov 14 07:44:35 gromit kernel: [211056.796333] radeon 0000:02:00.0: GPU lockup (waiting for 0x000000000055a9fd last fence id 0x000000000055a9fc on ring 0) Nov 14 07:44:35 gromit kernel: [211056.796337] radeon 0000:02:00.0: failed to get a new IB (-35) Nov 14 07:44:35 gromit kernel: [211056.796339] [drm:radeon_cs_ib_fill] *ERROR* Failed to get ib ! Nov 14 07:44:35 gromit kernel: [211056.907483] radeon 0000:02:00.0: Saved 1111 dwords of commands on ring 0. Nov 14 07:44:35 gromit kernel: [211056.907503] radeon 0000:02:00.0: GPU softreset: 0x0000010D (full log attached) 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/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
