[Bug 221991] i915kms: constant DRM errors

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Sep 13 20:13:27 UTC 2017


Ed Maste <emaste at freebsd.org> changed:

           What    |Removed                     |Added
                 CC|                            |emaste at freebsd.org

--- Comment #2 from Ed Maste <emaste at freebsd.org> ---
The common errors from the log:

4352 t520 kernel: error: [drm:pid1064:__gen6_gt_force_wake_get] *ERROR* Timed
out waiting for forcewake to ack request.
4155 t520 kernel: error: [drm:pid1064:__gen6_gt_wait_for_thread_c0] *ERROR* GT
thread status wait timed out
4145 t520 kernel: error: [drm:pid1064:gen6_gt_check_fifodbg] *ERROR* MMIO read
or write has been dropped 3

Does this happen before / after suspend+resume (or both)?

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