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[Launchpad Bug Tracker <1279340@xxxxxxxxxxxxxxxxxx>]

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1279340

Title:
  Ubuntu 13.10 Radeon HD 8470D screen flickering and tearing

Status in xorg package in Ubuntu:
  Expired

Bug description:
  After an upgrade from Ubuntu 13.04 to 13.10,  my unity desktop is
  experiencing screen flickering and what appears to be some screen
  tearing.  Tearing may not be the correct term.  I see random
  triangular areas of the screen which display what appears to be a gray
  scale gradient.  They are not always at the same position. The size
  and position change frequently.  Also, icons are flashing in the tray
  panel a the top of the screen.

  I have attempted to load the propitiatory AMD/ATI drivers, but that
  only leaves me with a black screen after reboot.

  I searched Launchpad and found Bug #1249468 which sounds to be the
  same issue.

  $ lspci | grep VGA
  00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8470D]

  $ lsb_release -rd
  Description:	Ubuntu 13.10
  Release:	13.10

  Please let me know if further information is required.

  Rcp

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: xorg 1:7.7+1ubuntu6
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Wed Feb 12 07:19:45 2014
  DistUpgraded: 2014-02-09 14:38:52,746 DEBUG enabling apt cron job
  DistroCodename: saucy
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8470D] [1002:9996] (prog-if 00 [VGA controller])
     Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8470D] [1002:9996]
  InstallationDate: Installed on 2014-01-25 (18 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=cb9160d6-2c0c-404f-bb10-85a1b0d7c016 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to saucy on 2014-02-09 (2 days ago)
  dmi.bios.date: 01/06/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F4d
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: F2A85XM-D3H
  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.:bvrF4d:bd01/06/2014:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnF2A85XM-D3H: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 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2~saucy1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Tue Feb 11 14:42:45 2014
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.14.5-1ubuntu2~saucy1
  xserver.video_driver: radeon

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