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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 --- - Hanging videos (Xvideo + KMS)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=57027">57027</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Hanging videos (Xvideo + KMS)
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr>

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

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

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>navaj072-info@yahoo.de
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/Radeon
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=69956" name="attach_69956" title="Xorg log with KMS enabled">attachment 69956</a> <a href="attachment.cgi?id=69956&action=edit" title="Xorg log with KMS enabled">[details]</a></span>
Xorg log with KMS enabled

I am having a problem with video playback on Ubuntu 12.04. When I try to play a
video with resolution 640x480 (or similar) it either hangs or flickers like
hell (depends on the player I use, VLC hangs).
All players are using the Xvideo extension for output by default, but this
seems to have a problem. The playback gets better when I configure the players
to use x11 output instead (some frames are dropped though, because I have a
slow CPU).
But if I boot with "nomodeset", which disables KMS, I can use the Xvideo
output, the playback works smoothly then. So I assume there is a bug somewhere
in the combination of Xvideo + KMS + radeon driver (at least for my hardware).</pre>
        </div>
      </p>
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