Public bug reported: Symptoms are: screen/console/keyboard non-funtional. Xorg has crashed. System is up, ssh login is possible. Unable to restart display manager, unable to reboot, must powercycle machine to recover.
Seems to be related to screensaver/locker (light-locker). Observing problem after being away from keyboard for some time. $ lsb_release -d Description: Ubuntu Xenial Xerus (development branch) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4 Uname: Linux 4.4.0-11-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE Date: Mon Mar 14 15:01:49 2016 DistUpgraded: 2015-12-01 13:45:07,953 DEBUG failed to SystemUnLock() (E:Not locked) DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Occurs more often under certain circumstances GpuHangStarted: Within the last week or two GraphicsCard: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [103c:18e5] LightdmGreeterLogOld: ** (lightdm-gtk-greeter:2891): WARNING **: Failed to load user image: Failed to open file '/home/vegardv/.face': No such file or directory init: indicator-power main process (2937) killed by TERM signal init: indicator-application main process (2940) killed by TERM signal MachineType: Hewlett-Packard HP EliteDesk 800 G1 USDT ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-11-generic root=/dev/mapper/voll2--vg-root ro splash quiet vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to xenial on 2015-12-01 (104 days ago) dmi.bios.date: 12/17/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: L01 v02.21 dmi.board.asset.tag: CZC41911VB dmi.board.name: 18E5 dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC41911VB dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrL01v02.21:bd12/17/2013:svnHewlett-Packard:pnHPEliteDesk800G1USDT:pvr:rvnHewlett-Packard:rn18E5:rvr:cvnHewlett-Packard:ct3:cvr: dmi.product.name: HP EliteDesk 800 G1 USDT dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Mar 14 14:56:12 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 2095 vendor SAM xserver.version: 2:1.18.1-1ubuntu3 ** Affects: linux (Ubuntu) Importance: Low Status: Incomplete ** Tags: amd64 apport-bug bios-outdated-2.65 freeze ubuntu xenial ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1556965 Title: Xorg freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1556965/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp