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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 - kernel 4.4.0 causes application lockup and unusable interfaces with radeon hardware"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93879">93879</a>
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<th>Summary</th>
<td>kernel 4.4.0 causes application lockup and unusable interfaces with radeon hardware
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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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>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Radeon
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>jimmy@boombatower.com
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=121320" name="attach_121320" title="sh -c "cat /proc/version; ./scripts/ver_linux; cat /proc/cpuinfo; cat /proc/modules; cat /proc/ioports; cat /proc/iomem; lspci -vvv; cat /proc/scsi/scsi" > env_info">attachment 121320</a> <a href="attachment.cgi?id=121320&action=edit" title="sh -c "cat /proc/version; ./scripts/ver_linux; cat /proc/cpuinfo; cat /proc/modules; cat /proc/ioports; cat /proc/iomem; lspci -vvv; cat /proc/scsi/scsi" > env_info">[details]</a></span>
sh -c "cat /proc/version; ./scripts/ver_linux; cat /proc/cpuinfo; cat
/proc/modules; cat /proc/ioports; cat /proc/iomem; lspci -vvv; cat
/proc/scsi/scsi" > env_info
While running Plasma 5 on 4.4.0 the following occurs periodically:
- chromium locks up
- plasma desktop locks up
- unable to enter password on plasma lock screen
A trigger for locking chromium up seems to be to resize the window by dragging
to screen edges (top to fullscreen, left to tack up left half of screen, etc).
Otherwise, it also seems to somewhat randomly freeze over time.
Reverting to 4.3.x resolves the issues.
Environment
-----------
Distro: openSUSE Tumbleweed (20160121) (x86_64)
Kernel version: 4.4.0-1.2 (works on <= 4.3.3-6)
OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.43.0, LLVM 3.7.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.1.0
Xorg version: 7.6_1.18.0-5.2
xf86-video-ati version: 7.6.1-1.2
DRI3 enabled
Hardware: Radeon HD 7970 ghz
output from kernel bug reporting guide attached</pre>
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