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[Launchpad Bug Tracker <1286365@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1286365

Title:
  Random Flickering lines in X display on Intel Haswell integrated
  graphics

Status in xserver-xorg-video-intel package in Ubuntu:
  Expired

Bug description:
  I'm getting random flickering horizontal lines (some very short, only
  20-30 pixels long, but some extending nearly the entire width of the
  screen) in my display output. I verified the connection cable running
  the same resolution and frequency on a MacBook Pro with no flickering
  output.

  I'm running a high-resolution external display (2560x1440) at 60Hz. It
  seems to occur more when I'm running at high res than at lower
  resolutions. And if running on internal display only the problem is
  even less visible.

  In any mode scenario I try though, the flickering gets worse over
  time, and resets for a period after resetting the mode via xrandr.

  The problem has occurred for me on kernels 3.11.0-12, 3.11.0-17,
  3.13.0-11 and now on 3.13.0.13.

  Running Trusty (14.04)
  xserver-xorg-video-intel: Installed: 2:2.99.910-0ubuntu1

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-13.33-generic 3.13.5
  Uname: Linux 3.13.0-13-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.13.2-0ubuntu5
  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
  CurrentDesktop: Unity
  Date: Fri Feb 28 16:50:56 2014
  DistUpgraded: 2014-02-20 22:35:53,373 ERROR got an error from dpkg for pkg: 'gcc-4.9-base': 'no package named `gcc-4.9-base' is installed, cannot configure'
  DistroCodename: trusty
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:05e3]
  InstallationDate: Installed on 2014-02-20 (7 days ago)
  InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  LightdmGreeterLog:
   QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
   QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus
   Bus::open: Can not get ibus-daemon's address. 
   IBusInputContext::createInputContext: no connection to ibus-daemon 
   file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
  LightdmGreeterLogOld:
   QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
   QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus
   Bus::open: Can not get ibus-daemon's address. 
   IBusInputContext::createInputContext: no connection to ibus-daemon 
   file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
  MachineType: Dell Inc. XPS 12-9Q33
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-13-generic.efi.signed root=UUID=085f457a-4960-450b-ad94-40bdb43fcfd4 ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to trusty on 2014-02-21 (7 days ago)
  dmi.bios.date: 07/26/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: XPS 12-9Q33
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd07/26/2013:svnDellInc.:pnXPS12-9Q33:pvrA02:rvnDellInc.:rnXPS12-9Q33:rvrA02:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: XPS 12-9Q33
  dmi.product.version: A02
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.11+14.04.20140218-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0~rc1-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0~rc1-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Fri Feb 28 16:37:00 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1027 
   vendor                                     LGD
  xserver.version: 2:1.15.0-1ubuntu6

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