Chris composed on 2016-03-15 14:50 (UTC-0500):
My system is a Dell Optiplex 780.
Which? Tower? Desktop? SFF? USFF?
I've filed several bug reports both with the Intel Graphics Bugzilla and the Ubuntu Launchpad pages. Initially back when this started in 2014 every 'freeze' would result in an error of [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle' in syslog. It would happen every few days or so and nothing that was done would correct the problem....
Was ensuring heat is a non-issue also done? SFF & USFF models tend to run rather hot, so accumulated dust, and especially tobacco tar, within, especially within the power supply, can become an intermittent problem for software.
-- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx