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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - intel-virtual-output: bad performance"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=96820">96820</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>intel-virtual-output: bad performance
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

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

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

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

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

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

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

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

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>main.haarp@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hey,

I'm using intel-virtual-output on a Thinkpad W520 (Sandy Bridge, Nvidia GPU).
xf86-video-intel-2.99.917.

I'm facing bad performance on the virtual screens. Cursor movement for instance
is choppy. It feels as if the monitors are running at low fps (despite the fact
that they're physically running at their fill 59.95Hz)

When there is movement on the virtual screen, e.g. a video being shown, CPU
usage of the Xorg process running on the Nvidia rises sharply (package power
consumption as shown in turbostat rises from 8 to 30W)

I'd like to improve this. Is there anything I can do to diagnose this or
provide useful information?</pre>
        </div>
      </p>


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