[Bug 96781] [skl dp-mst] oops in atomic commit

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96781

--- Comment #8 from willma <willmyalex at gmail.com> ---
I did a kernel bisect and the flip_done timeout error came with commit
ea0000f0d369a59c2086fe9c489e0a2a86e080ba - drm/i915: Roll out the helper
nonblock tracking. 

The last good commit was 1f7528c4dbea46bd266798d3c374a961b1228055 - drm/i915:
Signal drm events for atomic

The vblank time out bug has been in the kernel since 4.4 or so and there is
already a report here: https://bugs.freedesktop.org/show_bug.cgi?id=93782
I don't know if they are somehow related.

The vblank bug has no visible effects on my laptop other than an error message
in dmesg but the flip_done time out bug is more serious. It makes the boot hang
for about 10 seconds with a blank screen and crashes the computer when
switching back to the desktop from a full screen game.

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