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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 --- - [sna] Output at last pipe stays black"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=66494">66494</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[sna] Output at last pipe stays black
          </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>consume.noise@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>unspecified
          </td>
        </tr>

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

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Since 2.21.11 the output at the last pipe stays black. The monitor gets a
signal, but it doesn't show anything.
Within the X server log I see messages that the driver sets up the pipes
correctly.

The driver has been build with --disable-uxa.

Reproduced with:
- Lenovo T400 (GM45)
  o LVDS is okay @ pipe 0
  o external monitor at DVI docking station port stays black @ pipe 1

- Lenovo X230 (IvyBridge)
  o LVDS is okay @ pipe 0
  o external monitor at VGA docking station port is okay @ pipe 1
  o external monitor at DP docking station port stays black @ pipe 2

Bisecting atm.</pre>
        </div>
      </p>
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