Akshay Bhat, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.46). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything?
If not, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Thank you for your understanding. ** Summary changed: - [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung + 8086:0116 [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung ** This bug is no longer a duplicate of bug 946899 8086:2a02 [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung ** Tags added: bios-outdated-1.46 ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1199201 Title: 8086:0116 [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung Status in “linux” package in Ubuntu: Incomplete Bug description: Issue has happened twice in the week now. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-48.74-generic 3.2.46 Uname: Linux 3.2.0-48-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,regex,resize,animation,workarounds,move,gnomecompat,imgpng,mousepoll,grid,snap,wall,place,vpswitch,unitymtgrabhandles,expo,session,ezoom,staticswitcher,fade,scale,unityshell] CompositorRunning: None Date: Mon Jul 8 21:43:08 2013 DistUpgraded: 2012-04-27 04:49:48,715 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:21ce] InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub MachineType: LENOVO 4177CTO MarkForUpload: True ProcEnviron: SHELL=/bin/bash TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-48-generic root=UUID=478a278b-dcf5-4f8b-8e3a-3d04f592c44a ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to precise on 2012-04-27 (437 days ago) dmi.bios.date: 05/17/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 83ET57WW (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 4177CTO 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:bvr83ET57WW(1.27):bd05/17/2011:svnLENOVO:pn4177CTO:pvrThinkPadT420:rvnLENOVO:rn4177CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4177CTO dmi.product.version: ThinkPad T420 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.7.12-0ubuntu2 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.39-0ubuntu0.2 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.6 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.6 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.13 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1199201/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
