I'm seeing very similar symptoms on my Celeron N2940 sysstem. I'm using Arch distro with kernel 4.2.3-1. The system freezes from time to time when playing videos, especialy when using HW acceleration. It usually happens when playing videos from mpv with VAAPI HW decoding enabled or flash videos in Firefox with HW decoding enabled in flash config file. System freezes usually in 10 to 30 minutes of playback. Playing videos with no HW decoding means less freezes of my system, but not avoiding them. It just happens less frequent and from time to time, even when no videoplayback is running in my LXDE.
My best guess is that this behavior started somewhere between kernel version 4.0.7 and 4.1.6. Unfortunatelly, I can't be more specific, as it took me more than two months stresstesting CPU and memory before I pinpointed this problem as most probably connected with heavy GFX usage. I already tried a few options with no luck, like i915.reset=0/1, i915.enable_rc6=0/1 and i915.semaphores=0/1. I couldn't feel any difference, except with enable_rc6=9. System was even less stable then. Using drm.debug=1 did not produce any intereseting messages before freeze. It's filled with "random" I915_GEM_BUSY, I9!5_GEM_EXECBUFFER2 and I915_GEM_MADVISE messages up to freeze. Of course, I can post the log if someone feels it's interested anyway. I'm willing to offer more help with debuging this issue. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1453298 Title: Xubuntu freeze once a day Status in xf86-video-intel: Confirmed Status in xserver-xorg-video-intel package in Ubuntu: Triaged Bug description: Xubuntu Vivid crashes once a day with Intel Celeron J1900 / HD Graphics, mainly when watching videos and more rarely during routine tasks like surfing on firefox or during a skype call - 00:02.0 VGA compatible controller [0300]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e) I think it may be related with this bug https://bugs.freedesktop.org/show_bug.cgi?id=88012 (found via https://bbs.archlinux.org/viewtopic.php?id=195736 i have the same config but another distro) I have tried to set "NoAccel" option to xorg conf file to true but same thing ... ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CurrentDesktop: XFCE Date: Sat May 9 00:11:14 2015 InstallationDate: Installed on 2015-05-02 (6 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: steve 1530 F.... pulseaudio /dev/snd/controlC1: steve 1530 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 15.04 HibernationDevice: RESUME=UUID=fdcd8774-2dc2-4a6b-8fa8-9d3c6baa07a9 InstallationDate: Installed on 2015-05-02 (7 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: MEDION B269 Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1 PackageArchitecture: amd64 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic.efi.signed root=UUID=c1ef472e-75c1-4e99-9d2d-d8c5bdc94414 ro noprompt quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 RfKill: Tags: vivid vivid UdevLog: Error: [Errno 2] Aucun fichier ou dossier de ce type: '/var/log/udev' Uname: Linux 3.19.0-16-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/26/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: BTLTW08.110 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: BTDD-LT dmi.board.vendor: MEDION dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MEDION dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrBTLTW08.110:bd09/26/2014:svnMEDION:pnB269:pvr1.0:rvnMEDION:rnBTDD-LT:rvr1.0:cvnMEDION:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: B269 dmi.product.version: 1.0 dmi.sys.vendor: MEDION To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1453298/+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