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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GM45 DP-DVI dongle] KMS often does not set native display resolution"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89805">89805</a>
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<th>Summary</th>
<td>[GM45 DP-DVI dongle] KMS often does not set native display resolution
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>andreas.sturmlechner@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=114684" name="attach_114684" title="20150328-2050_4.0.0-rc5+-start_dmesg-ignorelid_wrong-res.log">attachment 114684</a> <a href="attachment.cgi?id=114684&action=edit" title="20150328-2050_4.0.0-rc5+-start_dmesg-ignorelid_wrong-res.log">[details]</a></span>
20150328-2050_4.0.0-rc5+-start_dmesg-ignorelid_wrong-res.log
This is a followup to <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [GM45 DP-DVI dongle regression] transient failure to read EDID (fbcon fails then X works)"
href="show_bug.cgi?id=58876">bug 58876</a>. My setup is a Thinkpad X200s (lid closed)
sitting on an Ultrabase docking station, connected to a 1920x1200 DVI monitor
by means of a DP-DVI dongle. 4.0.0 is the first kernel version since 3.7 that
always seems to detect my external display: What previously most of the time
ended with a black screen / standby now seems to have been replaced with KMS
not setting the correct resolution. In the end KDE adjusts this correctly
anyway, so this behaviour is already a big improvement, but it would be nice to
get this ironed out as well.
I usually have to set i915.panel_ignore_lid=0 so that KMS is able to use all of
the external screen estate and make it not align a limited output to the upper
and left side, this setting also affects outcome with this bug:
If i915.panel_ignore_lid=0, then some very low standard resolution is set.
else, the LVDS panel's native resolution seems to be set for the external
screen.</pre>
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