Hello all, I used to see very similar behaviour on my Sandy Bridge box. Interestingly I'm also using an Asrock Board (H67M-GE). That indicates that it might be a hardware issue. I flashed the latest BIOS version provided bei Asrock (V 2.10, used to have 1.40 or 1.50 before, don't remember exactly) and the issue went away for me, hasn't ever re- appeared since.
If I remember correctly, the BIOS changelog mentioned something about fixing the voltage settings of the GPU for the change to version 1.60. Asrock's documentation is rather poor unfortunately, but searching the web for "h67m-ge igpu voltage" yields several hits with descriptions of the BIOS update: "Modify default setting for IGPU voltage." As the bug seems to appear only with RC6 enabled there might be a connection here. If there's no new BIOS available for other boards, manually changing IGPU in the BIOS/UEFI might also work around the issue maybe. Maybe that helps someone. Regards, Stefan -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1020733 Title: [sandybridge-m-gt2+] GPU lockup IPEHR: 0x78170003 Status in X.org xf86-video-intel: Incomplete Status in “xserver-xorg-video-intel” package in Ubuntu: Triaged Bug description: I had a projector connected, suddenly everything exploded. Time: 1341348007 s 825877 us PCI ID: 0x0126 EIR: 0x00000000 IER: 0x8c649081 PGTBL_ER: 0x00000000 fence[0] = 79dd00b079d8001 fence[1] = d58d0670c78e001 fence[2] = 7e9302b07a94001 fence[3] = 79f8007079f5001 fence[4] = 711801f070e9001 fence[5] = 3ed601703ec3001 fence[6] = 3ec202303bc3001 fence[7] = 70df007070dc001 fence[8] = 77ca01f0760b001 fence[9] = 985106708a52001 fence[10] = f08d02b0ed8e001 fence[11] = ed8d0670df8e001 fence[12] = 7eaf02307e94001 fence[13] = 799c01707991001 fence[14] = 79cf017079c4001 fence[15] = 77d000b077cb001 ERROR: 0x00000000 DONE_REG: 0x00000000 render command stream: HEAD: 0x0b810fb8 TAIL: 0x00010fb8 ACTHD: 0x0b810fb8 IPEIR: 0x00000000 IPEHR: 0x78170003 INSTDONE: 0xfffffffe INSTDONE1: 0xffffffff BBADDR: 0x7a4c3e800000000 INSTPS: 0x00000000 INSTPM: 0x00000080 FADDR: 0x00011fb8 FAULT_REG: 0x00000000 SYNC_0: 0x00000000 SYNC_1: 0x0001e240 seqno: 0x0001e245 waiting: no ring->head: 0x00017110 ring->tail: 0x00010fb8 ProblemType: Crash DistroRelease: Ubuntu 12.10 Package: xserver-xorg-video-intel 2:2.19.0-1ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-3.3-generic 3.5.0-rc5 Uname: Linux 3.5.0-3-generic x86_64 ApportVersion: 2.2.5-0ubuntu2 Architecture: amd64 Chipset: sandybridge-m-gt2+ Date: Tue Jul 3 22:40:08 2012 DistroCodename: quantal DistroVariant: ubuntu DuplicateSignature: [sandybridge-m-gt2+] GPU lockup IPEHR: 0x78170003 Ubuntu 12.10 ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py GpuHangFrequency: This is the first time InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110817) InterpreterPath: /usr/bin/python3.2mu MachineType: LENOVO 429149G ProcCmdline: /usr/bin/python3 /usr/share/apport/apport-gpu-error-intel.py ProcEnviron: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-3-generic root=UUID=51ab960b-a2da-4841-98ce-c017f0582971 ro quiet splash vt.handoff=7 RelatedPackageVersions: xserver-xorg 1:7.6+12ubuntu1 libdrm2 2.4.33-3 xserver-xorg-video-intel 2:2.19.0-1ubuntu2 SourcePackage: xserver-xorg-video-intel Title: [sandybridge-m-gt2+] GPU lockup IPEHR: 0x78170003 UdevDb: Error: [Errno 2] No such file or directory: 'udevadm' UpgradeStatus: Upgraded to quantal on 2012-06-27 (6 days ago) UserGroups: dmi.bios.date: 05/18/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET46WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 429149G 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:bvr8DET46WW(1.16):bd05/18/2011:svnLENOVO:pn429149G:pvrThinkPadX220:rvnLENOVO:rn429149G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 429149G dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1020733/+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
