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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - xrandr --output DP1 --mode 2560x1440 lokup ironlake_crtc_mode_set+0x877/0x8a0 - Thunderbolt display"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63392">63392</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>xrandr --output DP1 --mode 2560x1440 lokup ironlake_crtc_mode_set+0x877/0x8a0 - Thunderbolt display
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>freedesktop@zignar.net
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=77760" name="attach_77760" title="log output">attachment 77760</a> <a href="attachment.cgi?id=77760&action=edit" title="log output">[details]</a></span>
log output
Since Kernel 3.8.3 up to including 3.8.6 the system locks up whenever I try to
use xrandr --output DP1 --mode 2560x1440 with a monitor connected over
thunderbolt.
Last Kernel Version that worked was 3.7.9 although I didn't try anything
between 3.7.9 and 3.8.3
Same operation works fine if I'am connected to a older Cinema Display over the
mini Display Port.
If the mode is omitted the display works in a low resolution (e.g. xrandr
--output DP1 --left-of eDP1 works).</pre>
</div>
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