Although I'm still working on digesting the 'kernel bisection' I have noticed several things. Firstly I've had four 'lockups' since 17 Jan, none of which contain the [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle issue. Secondly since 14 Jan when I went back from the 3.14* kernel build to 3.13.0-44-generic I've been seeing quite often in my syslog:
kernel: [ 1326.412487] [drm:intel_crtc_cursor_set_obj] cursor off kernel: [ 1326.412493] [drm:g4x_check_srwm] SR watermark: display plane 92, cursor 2 kernel: [ 1326.412495] [drm:g4x_check_srwm] display watermark is too large(92/63), disabling kernel: [ 1326.412497] [drm:intel_set_memory_cxsr] memory self-refresh is disabled kernel: [ 1326.412499] [drm:g4x_update_wm] Setting FIFO watermarks - A: plane=40, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0 I might add that though the system 'appears' to be 'locked up' it is only the video that is locked, however the mouse cursor will continue to move, if that makes any sense. The system continues to fetch and process mail with fetchmail and procmail, SpamAssassin and ClamAv continue to run as well as scripts I have to report spam and so forth. Whether this change will make any difference in this bug report I'm not sure however I will continue to work on the kernel bisection as requested. -- 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/1402331 Title: System will periodically lockup with [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle Status in linux package in Ubuntu: Incomplete Bug description: I have noticed the lockups periodically since 09/13/2014. I can't remember what kernel version was in use then possibly kernel 3.13.0-35-generic or -36. It has continued periodically through versions -39; -40 and now to -43. The last time this has happened was today Dec 13 14:40:57 localhost kernel: [154858.820009] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle. At times when it locks up I will have a cursor on a black screen and will have to press the power button to restart other times it will lockup whenever I'm in an application such as Firefox or Evolution. At that time I can usually CTRL>ALT-F1 log in and run 'sudo reboot' to restart the system. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-43-generic 3.13.0-43.72 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 2445 F.... pulseaudio CurrentDesktop: GNOME Date: Sat Dec 13 20:22:51 2014 HibernationDevice: RESUME=UUID=bb329dc0-0642-4b6a-876a-12c2f02fb7f6 InstallationDate: Installed on 2014-10-24 (50 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. OptiPlex 780 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=4254a7e9-429b-4f53-a08c-ae7ff839b98f ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-43-generic N/A linux-backports-modules-3.13.0-43-generic N/A linux-firmware 1.127.10 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/13/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.name: 0C27VV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.asset.tag: LE0006476 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA03:bd02/13/2010:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn0C27VV:rvrA01:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 780 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331/+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
