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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 - Xorg hangs when switching windows with composition enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88938">88938</a>
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<th>Summary</th>
<td>Xorg hangs when switching windows with composition enabled
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
</tr>
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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>
</tr>
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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>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>rnovacek@redhat.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>I'm using KDE Plasma 5 desktop with compositing enabled (Rendering backend
OpenGL 3.1, EGL OpenGL interface). Sometimes (~ once an hour) whole Xorg
freezes when switching windows via alt+tab.
This appears in the dmesg:
[ 703.460565] [drm] stuck on render ring
[ 703.461616] [drm] GPU HANG: ecode 0:0x00200000, in Xorg.bin [1414], reason:
Ring hung, action: reset
[ 703.461619] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 703.461621] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 703.461622] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 703.461623] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 703.461625] [drm] GPU crash dump saved to /sys/class/drm/card0/error
Dump of /sys/class/drm/card0/error is here:
<a href="https://rnovacek.fedorapeople.org/grfx-crash.log">https://rnovacek.fedorapeople.org/grfx-crash.log</a>
I'm using Fedora 21 with following packages:
xorg-x11-server-Xorg-1.16.2.901-1.fc21.x86_64
xorg-x11-drv-intel-2.99.916-3.20141117.fc21.x86_64
mesa-dri-drivers-10.4.2-1.20150112.fc21.x86_64
Let me know if I can provide some additional information.</pre>
</div>
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