I'm still continuing to experience video lockups though not quite as frequent as before. The most recent was 12 August. I'm running the kernel as shown in my sig. I've attached my Xorg.0.log. I'm able to SSH into my desktop from my tablet and running cat /sys/class/drm/card0/error shows 'no error state collected'. Running cat /sys/kernel/debug/dri/0/i915_swizzle_info outputs bit6 swizzle for X-tiling = none bit6 swizzle for Y-tiling = none DDC = 0x00200010 DDC2 = 0x00300030 C0DRB3 = 0x0030 C1DRB3 = 0x0010 This has been going on for a few months less than a year now. When this happens the video is frozen however the mouse cursor will continue to move and all background processes such as fetchmail, procmail, postfix and all cronjobs continue running. This is a Dell Optiplex 780 with BIOS A15 4gb of ram. Periodically this would show in the syslog about the same time as the freeze Jul 28 16:02:28 localhost kernel: [793861.820048] [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle The above was the last time the 'Hangcheck' error was noted. I'm running Gnome 3.12.2 and Ubuntu 14.04.3 LTS Any advice will be appreciated. Chris -- Chris KeyID 0xE372A7DA98E6705C 31.11°N 97.89°W (Elev. 1092 ft) 16:55:17 up 3 days, 10:12, 1 user, load average: 0.78, 0.51, 0.45 Ubuntu 14.04.3 LTS, kernel 4.0.0-997-generic #201503310205 SMP Tue Mar 31 02:07:04 UTC 2015
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