I've been running several days without a freeze on my 4.2.6 kernel. I simply added intel_idle.max_cstate=1 to my kernel arguments, no other power arguments, and no more setting GPU frequency caps.
intel_idle.max_cstate=0 was effective too, but my system ran warm (not hot) when idle. At max_cstate=1 the case temperature seems normal to me. I suspect that the cost of this work-around would be less battery run time. But until the T100CHI has full hardware support in linux (no sound, no bluetooth...), I'm tethered to a powered hub anyway. I've also tested versions of 4.1.13, 4.2.6, 4.3, even 4.4-rc1 without obvious side-effects. 4.4rc2 did freeze within minutes of booting, but 4.4-rcx has too many regressions (no wifi even on a dongle) to take that freeze seriously. I also tried max_cstate=2 on my Dell laptop (baytrail) but that seemed to trigger a "not quite" freeze during a kernel build (fan speed malfunction typical of a freeze, but the build finished successfully.) The subsequent power down crashed and the next boot was extremely difficult to start (press hold repeat). I'm not going to try the remaining max cstates 3-6! This might suggest the freeze lies in handling cstates 2-6 starting after kernel-3.16.7. But that assumes this bandaid lasts more than another week. -- 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: 8086:0f31 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 : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
