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[Thaddaeus Tintenfisch <thad.fisch@xxxxxxxxx>]

** Also affects: xserver-xorg-video-intel via
   https://bugs.freedesktop.org/show_bug.cgi?id=80033
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1171411

Title:
  8086:2a42 [Lenovo ThinkPad T400] xfwm4 displays window borders
  visually glitched

Status in X.org xf86-video-intel:
  Unknown
Status in xserver-xorg-video-intel package in Ubuntu:
  Triaged

Bug description:
  Since sna acceleration of the intel display driver is enabled by
  default, sometimes windows have visually glitched borders.

  WORKAROUND: Switch to uxa via xorg.conf .
  WORKAROUND: Disable compositing in xfwm4.
  WORKAROUND: Replace xfwm4 with mutter or metacity.

  ---
  ApportVersion: 2.12.7-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.336ubuntu1
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.04
  LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140107)
  MarkForUpload: True
  Package: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
  Tags:  trusty
  Uname: Linux 3.12.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  ---
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: XFCE
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroRelease: Ubuntu 14.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2112]
     Subsystem: Lenovo Device [17aa:2112]
  InstallationDate: Installed on 2014-01-11 (0 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140107)
  MachineType: LENOVO 2767WSD
  Package: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
  PackageArchitecture: amd64
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-1-generic root=UUID=aaef342f-8a39-4660-b8fd-c1fe9349d82a ro quiet splash
  ProcVersionSignature: Ubuntu 3.13.0-1.16-generic 3.13.0-rc7
  Tags:  trusty ubuntu reproducible
  Uname: Linux 3.13.0-1-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 10/17/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7UET94WW (3.24 )
  dmi.board.name: 2767WSD
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7UET94WW(3.24):bd10/17/2012:svnLENOVO:pn2767WSD:pvrThinkPadT400:rvnLENOVO:rn2767WSD:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2767WSD
  dmi.product.version: ThinkPad T400
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.50-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1
  xserver.bootTime: Sat Jan 11 13:41:34 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16438
   vendor                                     LEN
  xserver.version: 2:1.14.5-1ubuntu2

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