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[Curtis Reid <curtisreid@xxxxxxxxx>]

Screen freezes periodically, have eight machines doing the same thing.
If I VNC into the machine, the graphics appear to be updating fine...but
the LCD panel is stuck. All applications are continuing to run normally.

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th
Gen Core Processor Integrated Graphics Controller (rev 06)

Ubuntu 14.04.2 LTS

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https://bugs.launchpad.net/bugs/1314871

Title:
  Graphics freeze, with applications continuing working properly

Status in X.Org X server:
  Incomplete
Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Happens at random during normal desktop usage.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: nvidia wl
  .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
  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: Thu May  1 09:21:51 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.13.0-24-generic, x86_64: installed
   bcmwl, 6.30.223.141+bdcom, 3.13.0-24-generic, x86_64: installed
   nvidia-331-updates, 331.38, 3.13.0-24-generic, x86_64: installed
   virtualbox, 4.3.10, 3.13.0-24-generic, x86_64: installed
  GraphicsCard:
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:044d]
   NVIDIA Corporation GT218M [GeForce 310M] [10de:0a75] (rev a2) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:044d]
  InstallationDate: Installed on 2014-04-27 (3 days ago)
  InstallationMedia: Ubuntu-Kylin 14.04 LTS "Trusty Tahr" - Release amd64 (20140417.1)
  MachineType: Dell Inc. Vostro 3400
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=96cf6b4d-5e19-4d7a-b765-b71e4b0b94da ro locale=zh_CN quiet splash
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 0RXV7H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A10
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A10
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd10/25/2010:svnDellInc.:pnVostro3400:pvrA10:rvnDellInc.:rn0RXV7H:rvrA10:cvnDellInc.:ct8:cvrA10:
  dmi.product.name: Vostro 3400
  dmi.product.version: A10
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
  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

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