Perhaps 4.5 being fixed is a false positive here, given a crash happened with it.
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1556965 Title: Xorg freeze Status in linux package in Ubuntu: Confirmed Bug description: Symptoms are: screen/console/keyboard non-functional. Xorg has crashed. System is up, ssh login is possible. Unable to restart display manager, unable to reboot, must powercycle machine to recover. Observing problem after being away from keyboard for some time. Kernel call trace: https://launchpadlibrarian.net/247894911/dmesg.xorg.freeze 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1556965/+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