[Bug 96569] system freezes during boot, [drm:intel_dp_start_link_train [i915]] and [drm:intel_psr_work [i915]] ERROR

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96569

--- Comment #3 from Robin Krahl <kernel at ireas.org> ---
(In reply to Ander Conselvan de Oliveira from comment #2)
> Created attachment 125056 [details] [review]
> Workaround: don't retrain the link from long pulse
> 
> […]
> 
> I'm not sure what the proper fix would be, but the attached patch would
> confirm that's the issue.

Thanks!  Unfortunately the patch (applied against v4.7-rc1) does not solve the
problem in the original setup.

But I found out by accident that apparently the system does not actually
freeze, it’s just the internal monitor that is not updated.  If I connect an
external monitor, I can login and work (though the tty is flooded with the time
out errors).

Should I provide logs from the patched kernel, or test whether the external
monitor also works with the unpatched kernel?

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