[Kernel-packages] [Bug 1455785] [NEW] Display locks up - [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

Public bug reported: Similar to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331, probalby same problem here. Christopher M. Penalver asked me to register a new report. Unfortunately rebooted the system just before I saw Christopher's request. Hope the log files etc. are useful. - I'v

[Kernel-packages] [Bug 1455785] Re: Display locks up - [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

** Attachment added: "dmesg and kern.log starting from lock up." https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1455785/+attachment/4398617/+files/dmesg -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bug

[Kernel-packages] [Bug 1402331] Re: System will periodically lockup with [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

Filed a new report under: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1455785 -- 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

[Kernel-packages] [Bug 1455785] Re: Display locks up - [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

I disabled desktop effects for the moment, because some articles on Internet point in that direction and also the lock up clearly happened during the fading effect from one window to the other, as described above. -- You received this bug notification because you are a member of Kernel Packages,

[Kernel-packages] [Bug 1402331] Re: System will periodically lockup with [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

For what it is worth: X is waiting for I/O, hence the D state: $ ps aux | grep X root 2243 0.9 0.1 552832 14336 tty7 Ds+ mei03 176:23 /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch Not sure how I can figure out which file X is waiting fo

[Kernel-packages] [Bug 1402331] Re: System will periodically lockup with [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

Quick question: I can probably figure out from back ups which kernel I was running about 6 months ago, would it be possible to roll back to an older kernel version? 20140601/tree/boot/vmlinuz-3.11.0-19-generic 20140601/tree/boot/vmlinuz-3.13.0-24-generic 20140706/tree/boot/vmlinuz-3.13.0-29-gener

[Kernel-packages] [Bug 1402331] Re: System will periodically lockup with [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

Similar, probalby same problem here. - I've been running Kubuntu 14.04 for about a year with no problems. Problem started about 3 months ago or so, not entirely sure about the period. - The screen usually locks up when using Firefox, today it happen when I switched windows from Firefox to Konsol