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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] Desktop (font/texts) is corrupted after running SynMark test(s)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85060">85060</a>
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<th>Summary</th>
<td>[BDW] Desktop (font/texts) is corrupted after running SynMark test(s)
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>eero.t.tamminen@intel.com
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>wendy.wang@intel.com
</td>
</tr></table>
<p>
<div>
<pre>Everything seems to work OK in GL composited Ubuntu Unity desktop, but desktop
is messed up (all text is invisible/garbage) after running SynMark2 tests (e.g.
OglDrv* ones) if one uses non-compositing window manager or non-GL composting
window manager.
If one triggers GPU reset from sysfs:
echo 1 > /sys/kernel/debug/dri/0/i915_wedged
The problem goes away.
Comment from Chris:
---------------------------
The DRI clients operate in an isolated hardware context(s), but X uses the
global context. This means that either mesa is corrupting surface outside of
its GTT e.g. through the global GTT, of which there are still reports in
bugzilla) or that X is not setting up all the state that it uses when
rendering. The escription of how the GPU reset fixes things suggests the
latter.
---------------------------
Not sure whether this is related to <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] Screen stop at certain frame when running Synmark2 cases while FPS is updating"
href="show_bug.cgi?id=84958">bug 84958</a>, both seem to have been on BDW
"always".</pre>
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