<html>
    <head>
      <base href="https://bugzilla.gnome.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - gtk3 3.21.5 causes windows to grow on startup (with wayland)"
   href="https://bugzilla.gnome.org/show_bug.cgi?id=771112">771112</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>gtk3 3.21.5 causes windows to grow on startup (with wayland)
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Platform
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>gtk+
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.21.x
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Backend: Wayland
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>gtk-bugs@gtk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>kparal@redhat.com
          </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>With gtk3-3.21.4-2.fc25.x86_64, everything worked fine. With
gtk3-3.21.5-1.fc25.x86_64, certain applications (I noticed it with
virt-manager) grow larger and larger with every start. Every time you start it,
it's a bit wider and taller, until after ~5 starts it covers full screen
width/height.

This only happens on Wayland, but not in X11, and did not happen in previous
gtk version (tested with downgrade).

See the video to showcase the problem.

gtk3-3.21.5-1.fc25.x86_64
virt-manager-1.4.0-3.fc25.noarch
Fedora 25</pre>
        </div>
      </p>
      <hr>
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      <ul>
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