I have cleaned out my kernel packages and now I only have the official trusty kernel package installed. So I'm running on kernel 3.13 now and I've just experienced this crash again.
This time I was looking at Google maps on Chrome, so nothing special really going on (except maybe if Google maps is using some hardware acceleration similar to the ones that the Euphoria screensaver is using). But as I said, I'm now running on the official kernel so I'm re- uploading the Xorg log file. ➜ ~ uname -a Linux hyperion-stfs 3.13.0-92-generic #139-Ubuntu SMP Tue Jun 28 20:42:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ** Attachment added: "xorg_crash_20160728_xorg.log" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598904/+attachment/4708817/+files/xorg_crash_20160728_xorg.log ** Changed in: xorg (Ubuntu) Status: Incomplete => New -- 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/1598904 Title: X server crashes sporadically with a segfault Status in xorg package in Ubuntu: New Bug description: My desktop session crashes sporadically. Often this happens when I leave the computer and the screensaver starts (Euphoria GL screensaver). This bug is not reproducible on demand. Attached is my Xorg log file which seems to indicate that this problem is related to the i915 driver code. --- ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: kwin DistUpgraded: 2016-06-15 15:16:54,383 DEBUG enabling apt cron job DistroCodename: trusty DistroRelease: Ubuntu 14.04 DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: No GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:5036] InstallationDate: Installed on 2016-05-26 (59 days ago) InstallationMedia: Kubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1) LightdmGreeterLog: QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus Bus::open: Can not get ibus-daemon's address. IBusInputContext::createInputContext: no connection to ibus-daemon file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession LightdmGreeterLogOld: QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus Bus::open: Can not get ibus-daemon's address. IBusInputContext::createInputContext: no connection to ibus-daemon file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession MachineType: LENOVO 20BWS18900 Package: xorg 1:7.7+1ubuntu8.1 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.3-040603-generic root=UUID=285091fd-ac1a-4801-8055-c356ab9083a5 ro quiet splash vt.handoff=7 Tags: trusty ubuntu Uname: Linux 4.6.3-040603-generic x86_64 UpgradeStatus: Upgraded to trusty on 2016-06-15 (39 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 03/02/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET46WW (1.11 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BWS18900 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET46WW(1.11):bd03/02/2015:svnLENOVO:pn20BWS18900:pvrThinkPadT450s:rvnLENOVO:rn20BWS18900:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BWS18900 dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1~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: Mon Jul 25 09:49:33 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1133 vendor LGD xserver.version: 2:1.17.2-1ubuntu9.1~trusty1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1598904/+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
