I started following this list due to the fact that I was getting lockups with errors reported in my syslog like this: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle I've submitted a bug report at Ubuntu Launchpad and added to the bug report at freedesktop.org both seem to be in a state of hiatus right now as I haven't seen anything being done on either in quite awhile. Based on a a recommendation from Daniel Vetter I started running the latest drm kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/ I installed 4.0.0-997-generic #201503201505 SMP Fri Mar 20 15:07:05 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux on 27 March at 7:38am. It seemed to run great, I was feeling pretty good that the bug or whatever was finally fixed until last night, 31 March at 21:20 I was browsing with Firefox I noticed that the seconds on my clock had stopped even though the mouse continued to be movable. I could not switch windows as usual when this happens. I saw the below in my syslog after I rebooted however I was at the beginning of the boot process and I have no idea what it means anyway. Mar 31 21:23:04 localhost kernel: [395103.520038] WARNING: CPU: 1 PID: 14205 at /home/kernel/COD/linux/drivers/gpu/drm/drm_irq.c:1142 drm_wait_one_vblank+0x12f/0x180 [drm]() Mar 31 21:23:04 localhost kernel: [395103.520040] vblank wait timed out on crtc 0 There was no sign of the 'hangcheck...' error in last nights lockup. I downloaded and installed kernel 4.0.0-997-generic #201503310205 SMP Tue Mar 31 02:07:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux. Do I just keep installing the latest kernel until the problem goes away or is there anything else I can do to try and help figure out what the problem is? Any information about my system I can provide? I'll do whatever it takes. This having to reboot every couple of days or having the system lockup at inopportune times is killing me. Thank you for your time. Chris -- Chris KeyID 0xE372A7DA98E6705C 31.11°N 97.89°W (Elev. 1092 ft) 10:33:40 up 9 min, 2 users, load average: 0.15, 1.33, 1.04 Ubuntu 14.04.2 LTS, kernel 4.0.0-997-generic _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
