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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Xv vsync not working"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=59606">59606</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>Xv vsync not working
          </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>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mark7@alumni.cmu.edu
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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=73312" name="attach_73312" title="~/.drirc">attachment 73312</a> <a href="attachment.cgi?id=73312&action=edit" title="~/.drirc">[details]</a></span>
~/.drirc

The Xv output produced by the radeon driver (6.14.4) in Debian wheezy appears
to be not vsynced on my Radeon HD 4670; tearing shows up.

xvattr says that XV_VSYNC is 1.  Using mplayer to play a video with its gl
output option is properly vsynced, as are other OpenGL-using apps.  When using
the xv output option, tearing occurs.

Attaching ~/.drirc (vsync enabled), output of xvattr and xvinfo (XV_VSYNC 1),
and Xorg.0.log.

Attaching make_flasher.sh, a script using mencoder and ImageMagick to generate
a flashing avi to make the effect particularly obvious.  Playing this avi with
"mplayer -vo xv build/output.avi" produces tearing, whereas "mplayer -vo gl
build/output.avi" does not.</pre>
        </div>
      </p>
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