<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HD4600 regression] DVI does not support dual-link"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75345">bug 75345</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>ASSIGNED
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HD4600 regression] DVI does not support dual-link"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75345#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HD4600 regression] DVI does not support dual-link"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75345">bug 75345</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=75345#c8">comment #8</a>)
<span class="quote">> I should add the DVI output is reported by KMS as a HDMI output, so perhaps
> it's not possible to identify it as a DVI port and limit the bandwidth? If
> this is correct, then in theory one should be able to connect a HDMI 1.4
> capable monitor (not mine) to the DVI port with a passive adapter, and get
> 2560x1600@60Hz.</span >
In theory, yes. You are still going beyond the cable spec so there is some
danger that you would lose the signal.
If we ignore the ongoing issue with HDMI->active dual-DVI links, this here bug
is fixed by
commit 6375b768a9850b6154478993e5fb566fa4614a9c
Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Date: Mon Mar 3 11:33:36 2014 +0200
drm/i915: Reject >165MHz modes w/ DVI monitors
Single-link DVI max dotclock is 165MHz. Filter out modes with higher
dotclock when the monitor doesn't support HDMI.
Modes higher than 165 MHz were allowed in
commit 7d148ef51a657fd04036c3ed7803da600dd0d451
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Mon Jul 22 18:02:39 2013 +0200
drm/i915: fix hdmi portclock limits
Also don't attempt to use 12bpc mode with DVI monitors.
Cc: Adam Nielsen <<a href="mailto:a.nielsen@shikadi.net">a.nielsen@shikadi.net</a>>
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HD4600 regression] DVI does not support dual-link"
href="show_bug.cgi?id=75345">https://bugs.freedesktop.org/show_bug.cgi?id=75345</a>
Bugzilla: <a href="https://bugzilla.kernel.org/show_bug.cgi?id=70331">https://bugzilla.kernel.org/show_bug.cgi?id=70331</a>
Tested-by: Ralf Jung <<a href="mailto:post+kernel@ralfj.de">post+kernel@ralfj.de</a>>
Cc: <a href="mailto:stable@vger.kernel.org">stable@vger.kernel.org</a>
Signed-off-by: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Signed-off-by: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>></pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>