[Bug 194766] [drm:pid12:i915_hangcheck_elapsed] [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194766

--- Comment #37 from rhs <rhs.message at gmail.com> ---
Try adding <drm.i915.semaphores="1"> to </boot/loader.conf>. I have tested this
for over 1wk now and have not had any hangs. I cannot find running instances of
additional drm semaphores in my system. Maybe someone can tell me how to trap
them?
Hope this works for you as well.
Happy New Year

rhs

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