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[Launchpad Bug Tracker <1531824@xxxxxxxxxxxxxxxxxx>]

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Symptoms:

* Video is frozen.

Observations:

* Mouse moves normally.
* There is no hard-disc activity.
* Once  minute or so the video will respond like it's doing so a frame at a time.
* Pressing CTRL+ALT+F6 and then waiting a minute or so puts you into a terminal.
* Text terminals work normally without any problems.
* Pressing ALT+F7 from a text terminal puts you into either black frozen screen or a frozen graphical display.
* Restarting LightDM doesn't resolve the problem, it shows the login screen and freezes.

When does it occur:

* More often than not on or immediately after resume from suspend.
* Occasionally, but not very often, during normal use.
* It occurs several times a week, usually after several hours of suspend.

It started a few months ago.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-57.77~14.04.1-generic 3.16.7-ckt20
Uname: Linux 3.16.0-57-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.1-0ubuntu3.19
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 Jan  7 11:29:40 2016
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.3.34, 3.16.0-56-generic, x86_64: installed
 virtualbox, 4.3.34, 3.16.0-57-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GpuHangFrequency: Several times a week
GpuHangReproducibility: Occurs more often under certain circumstances
GpuHangStarted: Since a couple weeks or more
GraphicsCard:
 Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e22] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:8276]
   Subsystem: ASUSTeK Computer Inc. Device [1043:8276]
InstallationDate: Installed on 2015-07-13 (177 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: System manufacturer V-P5G45
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-57-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/18/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0405
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: V-P5G45
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0405:bd05/18/2009:svnSystemmanufacturer:pnV-P5G45:pvrSystemVersion:rvnASUSTeKComputerINC.:rnV-P5G45:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: V-P5G45
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri N/A
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Thu Jan  7 11:11:57 2016
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                               41085 
 vendor                                     DEL
xserver.version: 2:1.16.0-1ubuntu1.2~trusty2

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: amd64 apport-bug compiz-0.9 freeze latest-bios-0405 trusty ubuntu
-- 
Xorg freeze
https://bugs.launchpad.net/bugs/1531824
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