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<body><span class="vcard"><a class="email" href="mailto:root@kryo.se" title="Erik Ekman <root@kryo.se>"> <span class="fn">Erik Ekman</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - system freezes during boot, [drm:intel_dp_start_link_train [i915]] and [drm:intel_psr_work [i915]] ERROR"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96569">bug 96569</a>
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<td>root@kryo.se
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - system freezes during boot, [drm:intel_dp_start_link_train [i915]] and [drm:intel_psr_work [i915]] ERROR"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96569#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - system freezes during boot, [drm:intel_dp_start_link_train [i915]] and [drm:intel_psr_work [i915]] ERROR"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96569">bug 96569</a>
from <span class="vcard"><a class="email" href="mailto:root@kryo.se" title="Erik Ekman <root@kryo.se>"> <span class="fn">Erik Ekman</span></a>
</span></b>
<pre>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 <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - LCD flickering on Thinkpad T440p (Haswell) with kernel 4.6-rc4 (PSR enabled)"
href="show_bug.cgi?id=95176">https://bugs.freedesktop.org/show_bug.cgi?id=95176</a>
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.</pre>
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