I experience the same issue. I've tested this a bit, and this only happens (to me at least) with Intel Haswell and Iris. I know that almost an identical situation (hangs slightly more frequently) was encountered with SandyBridge, and a patch to X was issued then, and there was a patch for X when IvyBridge came out that also fixed GPU hangs. Wheter or not this is helpful, I hope this gets resolved quickly, as it does unfortunately make the device a pain in the ass to use.
~Quinn Balazs -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1226039 Title: frequency of gpu hangs increased dramatically over the weekend Status in “xorg” package in Ubuntu: Confirmed Bug description: I am somewhat used to having GPU lockups hang X for me maybe once a week. I've followed a few vague bugs on the problem, but over the past weekend this has grown to every couple of hours. Easy ways to trigger it: changing workspaces too quickly while there is disk activity, or letting the screensaver go into power saving mode on the screen. The last one requires a hard reboot and I end up with the screen in a very dim state after the boot. Have a kern.log, if it helps. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.4 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,snap,gnomecompat,grid,regex,mousepoll,compiztoolbox,resize,move,wall,animation,vpswitch,place,imgpng,workarounds,expo,fade,ezoom,session,scale,unityshell] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Mon Sep 16 14:03:35 2013 DistUpgraded: 2013-03-19 10:32:34,118 ERROR got an error from dpkg for pkg: '/var/cache/apt/archives/python-novaclient_1%3a2.11.1-0ubuntu1_all.deb': 'subprocess new pre-removal script returned error exit status 1' DistroCodename: raring DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:20e4] Subsystem: Lenovo Device [17aa:20e4] MachineType: LENOVO 7465CTO MarkForUpload: True ProcKernelCmdLine: root=UUID=5237fceb-23d0-412d-84d9-b8f8b3bf28af ro quiet splash SourcePackage: xorg UpgradeStatus: Upgraded to raring on 2013-03-19 (181 days ago) dmi.bios.date: 06/25/2009 dmi.bios.vendor: LENOVO dmi.bios.version: 6DET55WW (3.05 ) dmi.board.name: 7465CTO 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:bvr6DET55WW(3.05):bd06/25/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7465CTO dmi.product.version: ThinkPad X200s dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 xserver.bootTime: Mon Sep 16 13:31:40 2013 xserver.configfile: /etc/X11/xorg.conf xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.3-0ubuntu6.1 xserver.video_driver: intel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1226039/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp