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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bisected] G69/nv50 DisplayPort dual-head fails to switch to KMS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63135">63135</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[bisected] G69/nv50 DisplayPort dual-head fails to switch to KMS
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.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>djpohly+freedesktop@gmail.com
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=77445" name="attach_77445" title="systemd journal with kernel messages">attachment 77445</a> <a href="attachment.cgi?id=77445&action=edit" title="systemd journal with kernel messages">[details]</a></span>
systemd journal with kernel messages
Hardware: NVIDIA Corporation G96 [Quadro FX 580] (rev a1)
Distro: Arch Linux
Bisected commit:
<a href="http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?id=2c1a425e7d537ea655fa276f267c0b1cd100ff34">http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?id=2c1a425e7d537ea655fa276f267c0b1cd100ff34</a>
Steps to reproduce:
1. Boot system into text mode with normal kernel parameters.
2. Wait for module to load and attempt KMS.
Expected behavior:
3. KMS succeeds, login prompt appears.
Actual behavior:
3. System locks up and monitors go into power-saving mode.
More info:
* With nouveau.modeset=0, system boots normally.
* Was able to use SysRq to sync disks after hang but could not ssh, ping, or
reboot.
* Regression still present in current nvidia-git (db1b0f52) as well as
kernel.org git.
* nvidia module is not installed.
lspci.log and vbios.rom forthcoming.</pre>
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