** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1531845/+attachment/4545571/+files/dmesg.txt
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1531845 Title: Xorg freeze Status in xorg package in Ubuntu: New Bug description: I have multiple freezes per day, since a couple of months. I have gone back to Ubuntu 14.04, 15.04, same result. I have bought a new graphics card (went from GEforce460 to GEforce970), no change. I have a new cpu and motherboard, same result. What I see is that in System Monitor, CPU2 or CPU3 (there's 12, only 2 or 3 go to 100% during freeze) goes to 100% and stays there for 5 or more minutes. All other CPUs are at less than 5%. In the "processes" tab no processes use significant CPU. But when I go to a shell (ctrl-alt-F2) and type "top", I see Xorg taking ~50% CPU and 2.4% memory. I can trigger this by starting Android Studio. Sometimes it happens in Gedit loading a large file, or in a shell window. I tried different versions of AS, different versions of Gradle, tried Oracle java instead of openjdk, no change. Most of the times, Firefox also freezes after a short while, then everything freezes. The freeze does stop, after a maximum of 15 minutes. Sometimes, I need to do a hard reboot. First time I saw this "one cpu at 100%" was in August of 2014, which may be when I first used Android Studio and Gradle. Unfortunately, going back to Eclipse and ant is not an option. This takes about an hour of my time every day, so I'm willing to put a lot of effort in solving this. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.63 Sat Nov 7 21:25:42 PST 2015 GCC version: gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 BootLog: CurrentDesktop: Unity Date: Thu Jan 7 13:12:34 2016 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu GpuHangFrequency: Continuously GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Since before I upgraded GraphicsCard: NVIDIA Corporation GM206 [GeForce GTX 960] [10de:1401] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:3205] InstallationDate: Installed on 2015-12-13 (24 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: MSI MS-7881 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic.efi.signed root=UUID=eea1d4c7-5f21-40a5-b73d-fed6b0a48f69 ro noprompt persistent quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/20/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.70 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X99S XPOWER AC (MS-7881) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.70:bd03/20/2015:svnMSI:pnMS-7881:pvr1.0:rvnMSI:rnX99SXPOWERAC(MS-7881):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7881 dmi.product.version: 1.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Thu Jan 7 13:11:54 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Logitech USB Optical Mouse MOUSE, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.2-1ubuntu9.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1531845/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp