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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - X server does not find all resolutions on monitor connected via displayport"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73286">73286</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>xorg-driver-ati@lists.x.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>X server does not find all resolutions on monitor connected via displayport
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>guido-xorgbugs@unknownsite.de
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>7.7 (2011)
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/Radeon
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=91493" name="attach_91493" title="xorg log">attachment 91493</a> <a href="attachment.cgi?id=91493&action=edit" title="xorg log">[details]</a></span>
xorg log
When I connect one of my monitors via DisplayPort, xrandr only shows
resolutions up to 1280x1024 for that monitor and won't let me select anything
higher than this:
===========
Screen 0: minimum 320 x 200, current 5120 x 1440, maximum 8192 x 8192
DisplayPort-0 connected (normal left inverted right x axis y axis)
1280x1024 75.0 60.0
1280x960 60.0
1280x800 59.8
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0 59.9
720x400 70.1
===========
The same model of monitor connected via DVI will instead give this output from
xrandr:
===========
DVI-0 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 518mm
x 324mm
2560x1440 60.0*+
1920x1200 60.0
1920x1080 60.0 50.0 59.9
1600x1200 60.0
1680x1050 59.9
1280x1024 75.0 60.0
1440x900 59.9
1280x960 60.0
1280x800 59.9
1152x864 75.0
1280x720 60.0 50.0 59.9
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
720x576 50.0
720x480 60.0 59.9
640x480 75.0 72.8 66.7 60.0 59.9
720x400 70.1
===========
This is with an ATI Radeon HD5870 card with radeon driver version 7.2.0.
I'm attaching a log file from the X server. This is with three connected
monitors, two via DVI, one via DisplayPort. The monitor connected via
DisplayPort was switched on only later during the operation of the X server.</pre>
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</p>
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