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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Intel HD 520 failed to train DP when connected with a external monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93578#c37">Comment # 37</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Intel HD 520 failed to train DP when connected with a external monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93578">bug 93578</a>
from <span class="vcard"><a class="email" href="mailto:lesiehnie@web.de" title="lesiehnie@web.de">lesiehnie@web.de</a>
</span></b>
<pre>(In reply to PJ from <a href="show_bug.cgi?id=93578#c36">comment #36</a>)
<span class="quote">> I tested with kernels 4.4.3, 4.5.1 and 4.6.0 #201604152200 (nightly). Fully
> updated TB3 firmware from Dell and everything working fine when I try in
> windows to go.</span >
Could you try vanilla kernel 4.5.2? The Dell WD 15 works with 4.5.2 also at
high resolutions (Dell U2713H Monitor, 2546x1440), an oops message is displayed
in the dmesg log after turning off the monitor using xrandr, though. (See
<a href="show_bug.cgi?id=93578#c33">comment 33</a>) There was no need to turn off HBR2 to make it work with kernel
4.5.2.</pre>
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