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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Intel Q35 - Sometimes all windows became black on gnome-shell"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=80096">80096</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Intel Q35 - Sometimes all windows became black on gnome-shell
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mikhail.v.gavrilov@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg CVS
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
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        <pre>Description of problem:
Sometimes all windows became black

$ rpm -qa | grep Xorg
xorg-x11-server-Xorg-1.14.4-7.fc20.i686

Demonstration video:
<a href="https://drive.google.com/file/d/0B0nwzlfiB4aQVmNoREo4UFZDdEE/edit?usp=sharing">https://drive.google.com/file/d/0B0nwzlfiB4aQVmNoREo4UFZDdEE/edit?usp=sharing</a>


---

I know how reproduce this!!!!

Just open my panorama photo in Firefox on Intel Q35.
<a href="https://plus.google.com/u/0/photos?pid=6023650296842376578&oid=116984206024232739890">https://plus.google.com/u/0/photos?pid=6023650296842376578&oid=116984206024232739890</a>

Demonstration:
<a href="https://drive.google.com/file/d/0B0nwzlfiB4aQcXBFc19fQU5aWlU/edit?usp=sharing">https://drive.google.com/file/d/0B0nwzlfiB4aQcXBFc19fQU5aWlU/edit?usp=sharing</a></pre>
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