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<body><span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
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<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Display resolution 3840x2160/60Hz do not work with docking station"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103786">bug 103786</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Display resolution 3840x2160/60Hz do not work with docking station"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103786#c48">Comment # 48</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] Display resolution 3840x2160/60Hz do not work with docking station"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103786">bug 103786</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Jan Hoffmann from <a href="show_bug.cgi?id=103786#c42">comment #42</a>)
<span class="quote">> I tested with another adapter, the CAC-1080 (which apparently uses a
> MCDP2900 converter chip). With this adapter, audio works fine.
>
> However, with the CAC-1080, 4K video at 60 Hz only works reliably on the
> laptop DP port.</span >
For this case can you please attach the dmesg from boot with debug parameters
(from drmtip)?
>From drmtip kernel, good to see the logs with docking station (where it's not
working as expected, which is already attached) and without docking station.</pre>
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