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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 - Screen goes black when GPU tries to render some effects - no recovery possible"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=85656">85656</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Screen goes black when GPU tries to render some effects - no recovery possible
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>XOrg CVS
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bugzilla@lewicki.at
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=108702" name="attach_108702" title="kern.log">attachment 108702</a> <a href="attachment.cgi?id=108702&action=edit" title="kern.log">[details]</a></span>
kern.log

To reproduce the error I start Chrome (Version 38.0.2125.111 (64-bit))
and start the Tweetdeck App I have installed.
Whenever I click the "New Tweet" button, the system freezes for about a second
and then the screen blacks out. While the rest of the system is still running,
there is no way re-enabling ANY graphics output from the Intel graphics
adapter. I can only ssh into the machine and do a controlled reboot to regain
any output.

I have attached the kern.log as instructed by the log entry.
The /sys/class/drm/card0/error file only contains the following line:
no error state collected

Any clues for me?


Adam</pre>
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