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<body><span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [hsw ult dp-to-vga] embedded DP-to-VGA output only works once"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88590">bug 88590</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>REOPENED
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [hsw ult dp-to-vga] embedded DP-to-VGA output only works once"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88590#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [hsw ult dp-to-vga] embedded DP-to-VGA output only works once"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88590">bug 88590</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>This is interesting, and the first I've seen. HP has picked up HSW ULT which
does *not* have VGA, and has (apparently, per reference to "laptop's VGA port"
in <a href="show_bug.cgi?id=88590#c7">comment #7</a>) embedded a DP-to-VGA converter in the box. Unfortunately, the
converters, or dongles, are still quite unreliable and frankly I'm not quite
sure why.
Please try v3.19-rc1 or later, or try cherry-picking
commit 19a93f042fc241ecdf98543cedfe7c171f8cdf53
Author: Dave Airlie <<a href="mailto:airlied@redhat.com">airlied@redhat.com</a>>
Date: Wed Nov 26 13:13:09 2014 +1000
drm/dp: retry AUX transactions 32 times (v1.1)
to v3.18. The above commit is marked cc: stable, so it should eventually get
backported to stable kernels. It should give the DP downstream a little more
slack in responding; the legacy analog things may need that.</pre>
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