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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NV92] Regression in Linux 3.15: GPU lockup after suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81136">81136</a>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
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<th>Summary</th>
<td>[NV92] Regression in Linux 3.15: GPU lockup after suspend
</td>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Reporter</th>
<td>agustin@dallalba.com.ar
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<th>Hardware</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>git
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Product</th>
<td>xorg
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=102508" name="attach_102508" title="Logs for git kernel">attachment 102508</a> <a href="attachment.cgi?id=102508&action=edit" title="Logs for git kernel">[details]</a></span>
Logs for git kernel
After a suspend I get messages such as these:
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH TLB flush idle
timeout fail
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_STATUS : 0x01000001
BUSY ROP
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS0: 0x00000000
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS1: 0x00000000
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS2: 0x00200000
ROP
<3>[ 41.685486] nouveau E[ DRM] GPU lockup - switching to software fbcon
And if I was running X it crashes and the screen ends up looking like this:
<a href="http://imgur.com/a/D3VKw">http://imgur.com/a/D3VKw</a>
This is always reproducible but only since Linux 3.15, so I ran a git bisect.
The first bad commit is [ecf24de071f4f6cea79ecef5d990794df5875ee1] drm/nouveau:
fix fbcon not being accelerated after suspend. After reverting the commmit the
machine resumes properly.
The issue persists in drm-nouveau-next (last commit 0b4e8e7... from Jul 8),
even if I boot with noaccel=1 nofbaccel=1.
Relevant IRC logs:
<a href="http://people.freedesktop.org/~cbrill/dri-log/index.php?channel=nouveau&highlight_names=Nitsuga&date=2014-07-09">http://people.freedesktop.org/~cbrill/dri-log/index.php?channel=nouveau&highlight_names=Nitsuga&date=2014-07-09</a></pre>
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</p>
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