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    <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 - Stack shows incorrect frame in widget factory on wayland"
   href="https://bugzilla.gnome.org/show_bug.cgi?id=766405">766405</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Stack shows incorrect frame in widget factory on wayland
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>mattdangerw@gmail.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>From Timm Bäder on irc, on wayland sometimes stack shows a double drawn frame
in the widget factory.

<a href="http://i.imgur.com/JzcvonC.png">http://i.imgur.com/JzcvonC.png</a>

I believe the problem is because for some reason after triggering a stack page
transition, the stack is being drawn before its first tick callback. A gdk
window is positioned wrong until that callback.

Probably good for stack to always have consistent state, and have a patch for
that which fixes this problem. But no idea if that ordering of draw->tick
callback is expected, so opening the bug in case someone who knows more on the
wayland side wants to dig in there.</pre>
        </div>
      </p>
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