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[Launchpad Bug Tracker <1479321@xxxxxxxxxxxxxxxxxx>]

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Every now and than my desktop freezes for a couple of minutes.  I can
move the mouse pointer but it gets stuck in a single display (I have
two).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
Uname: Linux 3.16.0-45-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.1-0ubuntu3.11
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: Wed Jul 29 08:38:07 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.3.10, 3.16.0-43-generic, x86_64: installed
 virtualbox, 4.3.10, 3.16.0-45-generic, x86_64: installed
ExtraDebuggingInterest: I just need to know a workaround
GpuHangFrequency: Several times a week
GpuHangReproducibility: Seems to happen randomly
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:339a]
InstallationDate: Installed on 2015-04-10 (109 days ago)
InstallationMedia: It
MachineType: Hewlett-Packard HP Compaq Pro 6300 MT
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-45-generic root=UUID=88d8ecda-fb83-4942-83db-bbb2ee83be80 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/16/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: K01 v02.90
dmi.board.asset.tag: BRJ40510V4
dmi.board.name: 339A
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: BRJ40510V4
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrK01v02.90:bd07/16/2013:svnHewlett-Packard:pnHPCompaqPro6300MT:pvr:rvnHewlett-Packard:rn339A:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP Compaq Pro 6300 MT
dmi.sys.vendor: Hewlett-Packard
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: Wed Jul 29 08:19:44 2015
xserver.configfile: default
xserver.devices:
 input        Power Button         KEYBOARD, id 6
 input        Power Button         KEYBOARD, id 7
 input        CHICONY HP Basic USB Keyboard KEYBOARD, id 8
 input        PixArt USB Optical Mouse MOUSE, id 9
 input        HP WMI hotkeys       KEYBOARD, id 10
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                               12387 
 vendor                                     HWP
xserver.version: 2:1.16.0-1ubuntu1.2~trusty2

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


** Tags: amd64 apport-bug bios-outdated-2.98 compiz-0.9 freeze trusty ubuntu
-- 
WARNING: CPU: 1 PID: 207 at /build/linux-lts-vivid-3x86XO/linux-lts-vivid-3.19.0/drivers/gpu/drm/i915/intel_display.c:958
https://bugs.launchpad.net/bugs/1479321
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