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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 --- - XServer frequently freezes for a few seconds"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73619">73619</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>XServer frequently freezes for a few seconds
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>arichardson.kde@gmail.com
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>10.0
</td>
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<th>Component</th>
<td>Drivers/DRI/R600
</td>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
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<pre>The XServer randomly freezes for a few seconds or sometimes even 1-2 minutes. I
cannot move the mouse, and the screen does not update.
I have a HD4850 card running on a
3.12.6-1.g080d0df-desktop SMP PREEMPT x86_64 kernel with Mesa 10.0.1 (both from
openSuSE packages). These freezes also happen with the default 3.11 kernel, I
upgraded in the hope of it being fixed, but the issue is still present.
These issues started after the upgrade to openSuSE 13.1 which has a 3.11 kernel
instead of the previous 3.7 kernel. The Mesa version did not change, I was
always running the latest released version. My guess is it has something to do
with the r600 kernel changes in 3.8+.
During these freeze periods I can ssh into my system and top shows no CPU
usage, so the XServer seems to be sleeping instead of being in a busy loop.
dmesg gives me no messages and /var/log/XOrg.0.log is also empty.
I don't know how to get any more detailed logging output. If you provide me
with the necessary environment variables/kernel parameters I will give you
these logs.
Not sure if this helps, but most of the time the freeze happens when I open a
new tab in firefox or switch to a different one. However it also happens at
random intervals using other programs.
It can sometimes take quite a long time until this freeze happens, however once
it has occured once, it usually happens again after a short timespan (1-2
minutes or even less).
Is it possible to debug the XServer just like a normal program using gdb? If
yes I will try to provide a useful backtrace once the next longer freeze
happens</pre>
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