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** Attachment added: "radeon_ring_gfx"
   https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1438303/+attachment/4369713/+files/radeon_ring_gfx

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https://bugs.launchpad.net/bugs/1438303

Title:
  Radeon driver freezes GPU (reproducible)

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

Bug description:
  Hi,

  System:
  lsb_release -rd
  Description:	Ubuntu Vivid Vervet (development branch)
  Release:	15.04

  Package:
   apt-cache policy xserver-xorg-video-radeon
  xserver-xorg-video-radeon:
    Installiert:           1:7.5.0-1ubuntu2
    Installationskandidat: 1:7.5.0-1ubuntu2
    Versionstabelle:
   *** 1:7.5.0-1ubuntu2 0
          500 http://de.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
          100 /var/lib/dpkg/status

  GPU: Radeon HD 5870

  I upraded from Ubuntu 14.10 to 15.04 (x64) three days ago. After the
  upgrade I was not able to play a specific game (Star Conflict) with
  the open-source radeon drivers. (It does work with fglrx, very low
  FPS, but it does work)

  The game did work on Ubuntu 14.10 hours before I upgraded, so a game
  bug or hardware bug can be excluded in my opinion.

  Steps to reproduce:
   1. On a computer that uses the open-source radeon driver, start Star Conflict.
   2. log-in and start a custom game against bots
   3. start the match
   4. wait until the countdown is completed and you are launched

  Expected result: I can fly around and shoot at those bots
  Reality check: X freezes, I get a garbled up screen for a second and then the image I had before. I can still move my mouse, but nothing reacts. I can change to tty1 and kill the X server/gdm and restart it but it just shows me the exact same image I saw before.

  Game logs are clean. dmesg/kern.log shows this
  [quote]
  [drm:r600_ib_test [radeon]] *ERROR* radeon: fence wait failed (-35).
  [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed testing IB on GFX ring (-35).
  [/quote]

  I checked any log file I could find/think of, but kern.log is the only
  thing that shows anything. To get back to a working system I have to
  reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-radeon 1:7.5.0-1ubuntu2
  ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
  Uname: Linux 3.19.0-10-generic x86_64
  ApportVersion: 2.16.2-0ubuntu5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Mon Mar 30 18:17:50 2015
  DistUpgraded: 2015-03-29 00:45:53,926 DEBUG enabling apt cron job
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 4.3.26, 3.16.0-34-generic, x86_64: installed
   virtualbox, 4.3.26, 3.19.0-10-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Cypress XT [Radeon HD 5870] [1002:6898] (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:0346]
  InstallationDate: Installed on 2014-01-11 (443 days ago)
  InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017)
  MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-10-generic root=UUID=e00de04e-690f-4eae-a67a-badfe2d740c8 ro iommu=soft quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: Upgraded to vivid on 2015-03-28 (1 days ago)
  dmi.bios.date: 02/05/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: FC
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: 990FXA-UD3
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrFC:bd02/05/2013:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rn990FXA-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.59-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Mon Mar 30 18:10:55 2015
  xserver.configfile: default
  xserver.errors:
   Failed to load module "ati" (module does not exist, 0)
   Failed to load module "ati" (module does not exist, 0)
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.1-0ubuntu3
  xserver.video_driver: modeset

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