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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Regression bisected]: vblank time outs and machine hangs on RX560 drm-next-4.15-dc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103489">103489</a>
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<th>Summary</th>
<td>[Regression bisected]: vblank time outs and machine hangs on RX560 drm-next-4.15-dc
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</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>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>oschowa@web.de
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=135115" name="attach_135115" title="dmesg">attachment 135115</a> <a href="attachment.cgi?id=135115&action=edit" title="dmesg">[details]</a></span>
dmesg
Running the most recent code of agd5f/drm-next-4.15-dc leads to dmesg spam
about vblank time outs (see attachment) and eventual full machine hangs when a
4k screen is connected to my RX560. The maching does not hang if only a 1080p
screen is connected and it was running fine on commit
d7205d5c0f2b09d900231de9026b97105c37d343.
Bisecting produced d050f8ed14494ea23c6e10b5893010946ef0f78b as the first bad
commit, although on this commit the machine hangs immediatly after boot, so it
might be a different issue.</pre>
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