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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 - X crash when with 2nd display connected via Display Port"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92420">92420</a>
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<th>Summary</th>
<td>X crash when with 2nd display connected via Display Port
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>rhbugzilla@vontersch.com
</td>
</tr>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=118807" name="attach_118807" title="dmesg.display_port_problem.4.2.3-300.fc23.x86_64">attachment 118807</a> <a href="attachment.cgi?id=118807&action=edit" title="dmesg.display_port_problem.4.2.3-300.fc23.x86_64">[details]</a></span>
dmesg.display_port_problem.4.2.3-300.fc23.x86_64
I get a flood of kernel events from nouveau when connecting and disconnecting
my 2nd display via the display port cable.
Events start with this:
nouveau E[ PDISP][0000:01:00.0] INVALID_VALUE [UNK84] chid 0 mthd 0x0700 data
0x00052002
modinfo nouveau -n
/lib/modules/4.2.3-300.fc23.x86_64/kernel/drivers/gpu/drm/nouveau/nouveau.ko.xz
lspci -v | grep -i vga
01:00.0 VGA compatible controller: NVIDIA Corporation G92GLM [Quadro FX 2800M]
(rev a2) (prog-if 00 [VGA controller])
Errors come and go with connection/disconnection of the Display Port cable. So
long as I stay running in init 3, the primary laptop LCD continues to function.
Once I go init 5, X appears to start, and then just hangs.
I've attached dmesg output for boot-up, when I connect the display port, and
when I disconnect the display port.
Please let me know if I can help in any way.</pre>
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