[Bug 107543] Video cutout on Kaby Lake U processors.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107543

--- Comment #41 from phil.smith at adder.com ---
Created attachment 141914
  --> https://bugs.freedesktop.org/attachment.cgi?id=141914&action=edit
dmesg output following testing with i915_pri_wm_latency set as advised.

dmesg output following testing using the 4.18 drm-intel kernel, i915_ipc_status
= 0 (set manually following boot) and i915_pri_wm_latency set manually as
advised above.

Our test engineer was unable to permanently invoke the error. Whilst weston
appeared to crash at least once with screen corruption it recovered following a
DisplayPort unplug/replug.

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