CB, given you are experiencing a kernel crash in a graphics driver, this would be the cause of your displays freezes.
Hence, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com /~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, Y, and Z are numbers corresponding to the kernel version. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Summary changed: - Xorg freeze + WARNING: CPU: 1 PID: 207 at /build/linux-lts-vivid-3x86XO/linux-lts-vivid-3.19.0/drivers/gpu/drm/i915/intel_display.c:958 ** Changed in: xorg (Ubuntu) Importance: Low => Medium ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1479321 Title: WARNING: CPU: 1 PID: 207 at /build/linux-lts-vivid-3x86XO/linux-lts- vivid-3.19.0/drivers/gpu/drm/i915/intel_display.c:958 Status in linux package in Ubuntu: Incomplete Bug description: Every now and than my desktop freezes for a couple of minutes. I can move the mouse pointer but it gets stuck in a single display (I have two). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14 Uname: Linux 3.16.0-45-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 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: Wed Jul 29 08:38:07 2015 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: virtualbox, 4.3.10, 3.16.0-43-generic, x86_64: installed virtualbox, 4.3.10, 3.16.0-45-generic, x86_64: installed ExtraDebuggingInterest: I just need to know a workaround GpuHangFrequency: Several times a week GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:339a] InstallationDate: Installed on 2015-04-10 (109 days ago) InstallationMedia: It MachineType: Hewlett-Packard HP Compaq Pro 6300 MT ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-45-generic root=UUID=88d8ecda-fb83-4942-83db-bbb2ee83be80 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/16/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: K01 v02.90 dmi.board.asset.tag: BRJ40510V4 dmi.board.name: 339A dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: BRJ40510V4 dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrK01v02.90:bd07/16/2013:svnHewlett-Packard:pnHPCompaqPro6300MT:pvr:rvnHewlett-Packard:rn339A:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Compaq Pro 6300 MT dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri N/A version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Wed Jul 29 08:19:44 2015 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input CHICONY HP Basic USB Keyboard KEYBOARD, id 8 input PixArt USB Optical Mouse MOUSE, id 9 input HP WMI hotkeys KEYBOARD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 12387 vendor HWP xserver.version: 2:1.16.0-1ubuntu1.2~trusty2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1479321/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
