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<body><span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Desktop suddenly freezes, login via ssh possible, no error messages, unable to power off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98874">bug 98874</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Component</td>
<td>Driver/AMDgpu
</td>
<td>Drivers/Gallium/radeonsi
</td>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>xorg-driver-ati@lists.x.org
</td>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<td style="text-align:right;">Product</td>
<td>xorg
</td>
<td>Mesa
</td>
</tr>
<tr>
<td style="text-align:right;">QA Contact</td>
<td>xorg-team@lists.x.org
</td>
<td>dri-devel@lists.freedesktop.org
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Desktop suddenly freezes, login via ssh possible, no error messages, unable to power off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98874#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Desktop suddenly freezes, login via ssh possible, no error messages, unable to power off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98874">bug 98874</a>
from <span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span></b>
<pre>Sounds like a GPU hang, which is most likely caused by Mesa or LLVM. With the
environment variable GALLIUM_DDEBUG="pipelined 2000" set for the compositor or
Xorg process, the radeonsi driver might detect the hang and dump some
information about it in a file in ~/ddebug_dumps/ . Please attach that file
here.
The failure to recover cleanly from the problem is a kernel issue. You can try
setting amdgpu.lockup_timeout=2000 to make the amdgpu driver detect the hang
and try to reset the GPU, but it doesn't work reliably in general yet.</pre>
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