adam, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.13-rc1 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** This bug is no longer a duplicate of bug 946899 8086:2a02 [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung ** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu) -- 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/1002284 Title: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung Status in “linux” package in Ubuntu: Incomplete Bug description: [39805.130277] [drm:i915_wait_request] *ERROR* something (likely vbetool) disabled interrupts, re-enabling May 21 14:35:36 ghostdog kernel: [100010.488058] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung May 21 14:35:36 ghostdog kernel: [100010.488071] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state May 21 14:35:36 ghostdog kernel: [100010.489481] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 2272058 at 2272030, next 2272083) May 21 14:35:36 ghostdog kernel: [100010.490408] [drm:init_ring_common] *ERROR* render ring initialization failed ctl 00000000 head 00000000 tail 00000000 start 00000000 May 21 14:35:36 ghostdog kernel: [100010.490941] [drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync) May 21 14:35:36 ghostdog kernel: [100010.491098] ------------[ cut here ]------------ May 21 14:35:36 ghostdog kernel: [100010.491153] WARNING: at /build/buildd/linux-3.2.0/drivers/gpu/drm/i915/intel_display.c:793 intel_enable_pipe+0x144/0x150 [i915]() May 21 14:35:36 ghostdog kernel: [100010.491161] Hardware name: 7650DHU May 21 14:35:36 ghostdog kernel: [100010.491165] PLL state assertion failure (expected on, current off) May 21 14:35:36 ghostdog kernel: [100010.491170] Modules linked in: cdc_acm nls_iso8859_1 nls_cp437 vfat fat usb_storage snd_hrtimer bnep rfcomm parport_pc ppdev binfmt_misc arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi pcmcia snd_seq_midi_event snd_seq psmouse snd_timer serio_raw snd_seq_device thinkpad_acpi nvram iwl4965 iwl_legacy yenta_socket pcmcia_rsrc pcmcia_core mac80211 btusb cfg80211 mac_hid bluetooth snd i915 drm_kms_helper drm i2c_algo_bit coretemp video soundcore snd_page_alloc lp parport tg3 [last unloaded: cdc_acm] May 21 14:35:36 ghostdog kernel: [100010.491276] Pid: 11567, comm: kworker/u:1 Tainted: G W 3.2.0-24-generic #37-Ubuntu May 21 14:35:36 ghostdog kernel: [100010.491283] Call Trace: May 21 14:35:36 ghostdog kernel: [100010.491302] [<c104b182>] warn_slowpath_common+0x72/0xa0 May 21 14:35:36 ghostdog kernel: [100010.491345] [<f8355744>] ? intel_enable_pipe+0x144/0x150 [i915] May 21 14:35:36 ghostdog kernel: [100010.491386] [<f8355744>] ? intel_enable_pipe+0x144/0x150 [i915] May 21 14:35:36 ghostdog kernel: [100010.491396] [<c104b253>] warn_slowpath_fmt+0x33/0x40 May 21 14:35:36 ghostdog kernel: [100010.491438] [<f8355744>] intel_enable_pipe+0x144/0x150 [i915] May 21 14:35:36 ghostdog kernel: [100010.491484] [<f8358988>] i9xx_crtc_mode_set+0x688/0xc60 [i915] May 21 14:35:36 ghostdog kernel: [100010.491518] [<f82075ec>] ? vblank_disable_and_save+0x16c/0x190 [drm] May 21 14:35:36 ghostdog kernel: [100010.491561] [<f83522bc>] intel_crtc_mode_set+0x5c/0x90 [i915] May 21 14:35:36 ghostdog kernel: [100010.491581] [<f8140b72>] drm_crtc_helper_set_mode+0x2a2/0x470 [drm_kms_helper] May 21 14:35:36 ghostdog kernel: [100010.491606] [<f8140dad>] drm_helper_resume_force_mode+0x6d/0x140 [drm_kms_helper] May 21 14:35:36 ghostdog kernel: [100010.491639] [<f8334231>] i915_reset+0x211/0x2d0 [i915] May 21 14:35:36 ghostdog kernel: [100010.491672] [<f83385fe>] i915_error_work_func+0xae/0xf0 [i915] May 21 14:35:36 ghostdog kernel: [100010.491692] [<c10652a1>] process_one_work+0x101/0x3a0 May 21 14:35:36 ghostdog kernel: [100010.491703] [<c1577359>] ? apic_timer_interrupt+0x31/0x38 May 21 14:35:36 ghostdog kernel: [100010.491736] [<f8338550>] ? i915_driver_irq_postinstall+0x170/0x170 [i915] May 21 14:35:36 ghostdog kernel: [100010.491746] [<c1065d64>] worker_thread+0x124/0x2d0 May 21 14:35:36 ghostdog kernel: [100010.491756] [<c1065c40>] ? manage_workers.isra.27+0x110/0x110 May 21 14:35:36 ghostdog kernel: [100010.491766] [<c1069b8d>] kthread+0x6d/0x80 May 21 14:35:36 ghostdog kernel: [100010.491774] [<c1069b20>] ? flush_kthread_worker+0x80/0x80 May 21 14:35:36 ghostdog kernel: [100010.491784] [<c157e37e>] kernel_thread_helper+0x6/0x10 May 21 14:35:36 ghostdog kernel: [100010.491791] ---[ end trace 69f94361aa03fe13 ]--- Sometimes (usually once or twice a day) the screen goes completely off and can't be turned back on. The rest of the system seems to be running normally (not 100% sure about this, since I can't see anything). Only way to restore it is hard reboot. Not sure what triggers this, it seems quite random to me. Most of the time when this happens (not always though), is when some app that uses opengl is running. I'm using ubuntu 12.04 with unity-2d. My graphics card is: "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller". bug 507504 bug 881867 --- ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 PackageArchitecture: i386 ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Tags: precise Uname: Linux 3.2.0-24-generic i686 UpgradeStatus: Upgraded to precise on 2012-05-13 (13 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare --- ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 PackageArchitecture: i386 ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Tags: precise Uname: Linux 3.2.0-24-generic i686 UpgradeStatus: Upgraded to precise on 2012-05-13 (15 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare --- ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 PackageArchitecture: i386 ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Tags: precise Uname: Linux 3.2.0-24-generic i686 UpgradeStatus: Upgraded to precise on 2012-05-13 (15 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1002284/+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