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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU lockup with Radeon HD 7850 in 18.1.6 driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107876">107876</a>
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<th>Summary</th>
<td>GPU lockup with Radeon HD 7850 in 18.1.6 driver
</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>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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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/Radeon
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<th>Assignee</th>
<td>xorg-driver-ati@lists.x.org
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<th>Reporter</th>
<td>lukasz.krotowski@gmail.com
</td>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=141494" name="attach_141494" title="Relevant part of kernel log">attachment 141494</a> <a href="attachment.cgi?id=141494&action=edit" title="Relevant part of kernel log">[details]</a></span>
Relevant part of kernel log
When using dual monitors (I'm not sure is correlated but first error shows on
turning second monitor with xrandr) GPU locks up with:
[ 451.840071] radeon 0000:01:00.0: ring 0 stalled for more than 32210msec
[ 451.840077] radeon 0000:01:00.0: ring 3 stalled for more than 32210msec
[ 451.840084] radeon 0000:01:00.0: GPU lockup (current fence id
0x000000000003d501 last fence id 0x000000000003d768 on ring 3)
[ 451.840088] radeon 0000:01:00.0: GPU lockup (current fence id
0x000000000001e67a last fence id 0x000000000001e74a on ring 0)
When turning on second monitor this shows up:
[drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object lookup failed 0xa
[drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse relocation -2!
Old driver 17.2.0-0.20170513 (some git snapshot from 2017-05-13, don't know
exact commit) works fine even when used with Mesa-18.1.6 package (I've reverted
Radeon SI driver only).</pre>
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