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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu fails to wake up DisplayPort DELL monitors with 'clock recovery failed'"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100745#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu fails to wake up DisplayPort DELL monitors with 'clock recovery failed'"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100745">bug 100745</a>
from <span class="vcard"><a class="email" href="mailto:b.bellec@gmail.com" title="Benjamin Bellec <b.bellec@gmail.com>"> <span class="fn">Benjamin Bellec</span></a>
</span></b>
<pre>I hit the same problem today after enabling amdgpu.dc=1
The screen doesn't light up at all if I boot the kernel with amdgpu.dc=1
Config is:
Fedora 27 + kernel 4.15.0-0.rc0.git7.1.fc28.x86_64
Radeon R9 380X
Dell U2414H
dmesg error is:
kernel: [drm:dm_logger_write [amdgpu]] *ERROR* perform_clock_recovery_sequence:
Link Training Error, could not get CR after 100 tries.</pre>
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