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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - xwl_present_flips_stop: Assertion `xwl_window->present_window == window' failed."
href="https://bugs.freedesktop.org/show_bug.cgi?id=106930">106930</a>
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<tr>
<th>Summary</th>
<td>xwl_present_flips_stop: Assertion `xwl_window->present_window == window' failed.
</td>
</tr>
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<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>XWayland
</td>
</tr>
<tr>
<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>james@nurealm.net
</td>
</tr>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr></table>
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<div>
<pre>Arch Linux
xorg-server-xwayland 1.20.0-7
kwin 5.13.0-1
Xwayland does not play nicely with kwin_wayland. In particular, repeated
selection of buttons, for instance the Application Launcher from the Panel,
will eventually result in an Xwayland crash that locks-up the kwin_wayland
keyboard and mouse.
Locking-up kwin_wayland is KDE's problem. Crashing the Xwayland X server is a
xorg/Wayland problem.
The kwin_wayland log reports:
Xwayland: ../xorg-server-1.20.0/hw/xwayland/xwayland-present.c:520:
xwl_present_flips_stop: Assertion `xwl_window->present_window == window'
failed.
I have seen this on both a dual display laptop with i915/i965 hardware and a
triple display desktop machine with Radeon HD 5570 / Redwood PRO hardware.</pre>
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