[Bug 75394] System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75394

--- Comment #78 from Chris <cpollock at embarqmail.com> ---
Today, at 15:54:11 the video froze on my system while opening a new tab with
Firefox 41.0. At the time of the freeze I was running kernel 3.19.0-28-generic
#30~14.04.1-Ubuntu SMP Tue Sep 1 09:32:55 UTC 2015 x86_64 x86_64 x86_64
GNU/Linux and have since updated via an update to kernel 3.19.0-30-generic
#33~14.04.1-Ubuntu SMP Tue Sep 22 09:27:00 UTC 2015 x86_64 x86_64 x86_64
GNU/Linux. The cursor would still move but nothing clicked on will open nor can
I change to a different window. This came after an uptime of 6d20h6m. I've
attached today's syslog which shows that until the time I rebooted after the
freeze that background operations were still working. The 2nd boot today was
into the new 3.19-30 kernel.

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