You have been subscribed to a public bug: The whole OS freezes and cannot recover. Forcing power off is the only way out. Very similar to https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1454868
ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg 1:7.7+7ubuntu4 Uname: Linux 4.2.3-040203-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE Date: Sat Oct 10 20:16:32 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:2226] InstallationDate: Installed on 2015-05-21 (142 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) Lsusb: Bus 003 Device 002: ID 8087:8001 Intel Corp. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20CLS06A00 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.3-040203-generic root=UUID=4724d644-9afe-4dd8-8d31-2d68d7b6fb2e ro quiet splash vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/06/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET33W (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CLS06A00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET33W(1.12):bd04/06/2015:svnLENOVO:pn20CLS06A00:pvrThinkPadX250:rvnLENOVO:rn20CLS06A00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CLS06A00 dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Sat Oct 10 20:08:32 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1079 vendor LGD xserver.version: 2:1.17.1-0ubuntu3.1 ** Affects: linux (Ubuntu) Importance: Medium Status: Incomplete ** Tags: amd64 apport-bug latest-bios-1.17 ubuntu vivid wily -- Random freezes https://bugs.launchpad.net/bugs/1504816 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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