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[Launchpad Bug Tracker <1402401@xxxxxxxxxxxxxxxxxx>]

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Sometimes the computer becomes unresponsive after switching to a text
console and back; this seems to be an Xorg and / or kernel driver crash
(there is a backtrace in dmesg that seems to be from Intel drivers).

The rest of the system worked fine, I could SSH into it and restart
Xorg. I had an (html5) Youtube video playing in Firefox when the lockup
happened, I'll try to see if that was the culprit (I switched a few
times to text console and back after restarting X and all was fine, but
I didn't have a video running)

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-28.37-generic 3.16.7-ckt1
Uname: Linux 3.16.0-28-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
BootLog:
 * Setting up X socket directories...        
[ OK ]
  * Restoring resolver state...        
[ OK ]
 Starting supervisor:
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: Sun Dec 14 17:47:30 2014
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:13ad]
InstallationDate: Installed on 2014-12-05 (8 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 03eb:8a03 Atmel Corp. 
 Bus 001 Device 003: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
 Bus 001 Device 007: ID 8087:07dc Intel Corp. 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. UX302LG
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-28-generic.efi.signed root=UUID=a49261fe-9402-40b2-8860-682a094ceec1 ro rootflags=subvol=@ quiet splash acpi_osi= vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/30/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX302LG.207
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX302LG
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX302LG.207:bd10/30/2013:svnASUSTeKCOMPUTERINC.:pnUX302LG:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX302LG:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX302LG
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Sun Dec 14 17:44:52 2014
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                                1507 
 vendor                                     BOE
xserver.version: 2:1.16.0-1ubuntu1.2

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


** Tags: amd64 apport-bug bios-outdated-210 compiz-0.9 false-gpu-hang freeze ubuntu utopic
-- 
Xorg freeze when switching to text console and back
https://bugs.launchpad.net/bugs/1402401
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