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[Jeoffrey Bakker <1401434@xxxxxxxxxxxxxxxxxx>]

I have the same problem on a Dell Latitude e6520.

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https://bugs.launchpad.net/bugs/1401434

Title:
  Desktop is distorted after update to 331.113

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  After upgrading to 331.113 I have experienced distorted desktop. I
  have also experienced the same problem after trying to upgrade to
  14.10 and that's why I've reverted to backup of 14.04.

  I is quite strange. Unity controls are ok. I.e. Dash and panel on top
  look ok. But desktop itself and application windows are stretched to
  multi-monitor setup. If I arrange monitors side by side, desktop and
  applications are distorted horizontally. If I arrange them top to
  bottom, desktop is distorted vertically.

  It is interesting, that even screenshot is taken "as is", i.e. showing
  distortion.

  On my current setup I have Dash on both (or three) screens and top
  panel repeating. In the screenshot with distortion, however, there's
  only one Dash and top panel is not visible (only line seen) on laptop
  screen.

  Mouse cursor is ok, but it is impossible to point to correct location
  on desktop or application window: some "hit and miss" involved.

  I am using Nvidia Optimus with nvidia-prime and lightdm for dual or
  three monitor setup (with docking station), laptop screen running on
  Intel card.

  I suppose this might be simply old configuration files or some package
  version, that is not compatible with 331.113. I've reverted to 331.38
  and everything's ok. Note, that upgrading to 14.10 had exactly the
  same effect.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  Uname: Linux 3.14.1-031401-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  331.38  Wed Jan  8 19:32:30 PST 2014
   GCC version:  gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  CompizPlugins: [core,compiztoolbox,mousepoll,vpswitch,imgpng]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Thu Dec 11 10:34:04 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21d1]
   NVIDIA Corporation GF106GLM [Quadro 2000M] [10de:0dda] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21d1]
  InstallationDate: Installed on 2014-04-18 (236 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 4282A72
  ProcKernelCmdLine: root=UUID=a7ac0cbe-9ae3-433b-8b76-d00c20786809 ro
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/06/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8BET58WW (1.38 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4282A72
  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:bvr8BET58WW(1.38):bd07/06/2012:svnLENOVO:pn4282A72:pvrThinkPadW520:rvnLENOVO:rn4282A72:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4282A72
  dmi.product.version: ThinkPad W520
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu36
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.2
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.5
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.3
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Thu Dec 11 10:14:18 2014
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               16562 
   vendor                                     LEN
  xserver.version: 2:1.15.1-0ubuntu2.5

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