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<base href="https://bugzilla.gnome.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - gdk_device_get_source: assertion 'GDK_IS_DEVICE (device)' failed"
href="https://bugzilla.gnome.org/show_bug.cgi?id=753185">753185</a>
</td>
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<th>Summary</th>
<td>gdk_device_get_source: assertion 'GDK_IS_DEVICE (device)' failed
</td>
</tr>
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<th>Classification</th>
<td>Platform
</td>
</tr>
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<th>Product</th>
<td>gtk+
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>Normal
</td>
</tr>
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<th>Component</th>
<td>Backend: Wayland
</td>
</tr>
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<th>Assignee</th>
<td>gtk-bugs@gtk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>carlosg@gnome.org
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>gtk-bugs@gtk.org
</td>
</tr>
<tr>
<th>CC</th>
<td>rob@robster.org.uk, wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>GNOME version</th>
<td>---
</td>
</tr></table>
<p>
<div>
<pre>On wayland we may destroy the "master" pointer/keyboard devices right when we
receive a wl_seat.capability event, despite the events that might be queued for
these at that time.
This is visible on tty switch, mutter will first send the key release for the
ctrl/alt modifiers, gtk+ queues these events, but destroys the devices
immediately after. The focused window will then spawn several:
Gdk-CRITICAL **: gdk_device_get_source: assertion 'GDK_IS_DEVICE (device)'
failed
Triggered when the GtkGesture generic event handling code receives the event.
This didn't use to trigger on X11 because VCP/VCK are not removed, only the
slave devices are, although if we had performed any checks on the source
devices, we would surely have received warnings as well.
I'm attaching a patch that makes the private device/source_device event fields
refcounted, so the events at least contain valid GdkDevices when processed.</pre>
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</p>
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