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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 - Radeon.mst error"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92790">92790</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Radeon.mst error
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

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

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

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

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>A.Fiergolski+bugzilla@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Details have been been submitted here:
<a href="https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1509997">https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1509997</a>

Today (3.11.2015) I have tried with the newest version from ppa:xorg-edgers/ppa
and even with apparently the newest version of the Radeon driver, the problem
still exists (the same symptoms) and all screens switch to the standby mode. 

The only error message I have managed to spot is:
 [drm:radeon_mst_encoder_dpms [radeon]] *ERROR* DPMS OFF 0</pre>
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      </p>
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