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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - booting gives black screen [drm:intel_dp_start_link_train] [CONNECTOR:67:eDP-1] Link Training failed at link rate = 162000, lane count = 2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109398#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - booting gives black screen [drm:intel_dp_start_link_train] [CONNECTOR:67:eDP-1] Link Training failed at link rate = 162000, lane count = 2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109398">bug 109398</a>
from <span class="vcard"><a class="email" href="mailto:seppe.hoogzaad@gmail.com" title="Seppe <seppe.hoogzaad@gmail.com>"> <span class="fn">Seppe</span></a>
</span></b>
<pre>solution (on the mainline kernel):
git revert 49218c83e25b6f0708f246b07d570b2c43a98223
The problem is caused by the commit 49218c83e25b6f0708f246b07d570b2c43a98223
"drm/i915/dp: Link train Fallback on eDP only if fallback link BW can fit
panel's native mode".
I have not dig into this code, but only tried is reverting helps. It does. The
problem is gone without this commit.</pre>
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