[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

Erik Ekman <root at kryo.se> changed:

           What    |Removed                     |Added
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                 CC|                            |root at kryo.se

--- Comment #7 from Erik Ekman <root at kryo.se> ---
I had this problem also, and bisected the following kernel commit as the cause:
03b7b5f983091bca1, drm/i915/psr: Try to program link training times correctly

which was done as a fix to https://bugs.freedesktop.org/show_bug.cgi?id=95176

I have Toshiba Portege Z30-A-15M with i7-4500U and in the linked bug another
Toshiba user also had a problem. I tested with an external hdmi screen now and
I can confirm it is just the laptop display not redrawing, not a complete hang.

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