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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055#c42">Comment # 42</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055">bug 89055</a>
from <span class="vcard"><a class="email" href="mailto:mail@3v1n0.net" title="Marco Trevisan (Treviņo) <mail@3v1n0.net>"> <span class="fn">Marco Trevisan (Treviņo)</span></a>
</span></b>
<pre>(In reply to Prasad H L Bhat from <a href="show_bug.cgi?id=89055#c34">comment #34</a>)
<span class="quote">> I get the same error sometimes on my T460 laptop with Intel HD Graphics 520.
> When it occurs, it freezes the laptop completely (display turns off, no
> virtual terminals work, audio buffer keeps looping if present when freezing).</span >
Same in a T460p, using the Ultra Dock station connected via HDMI to an external
monitor (that actually routes through DP3-1).
I see these errors multiple times, and I also experience some hangs where I see
visual corruptions in monitor. Not sure this can be related, but indeed it has
something to do with intel.</pre>
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