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[John Affleck <lists+launchpad@xxxxxxxxxxxxxxxxx>]

Public bug reported:

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)

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "/var/log/kern.log"
   https://bugs.launchpad.net/bugs/1392727/+attachment/4260489/+files/kernel.log

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https://bugs.launchpad.net/bugs/1392727

Title:
  adeon 0000:02:00.0: ring 0 stalled for more than 10008msec

Status in “xserver-xorg-video-ati” package in Ubuntu:
  New

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)

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