<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <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 occasionally and logs say GPU hung"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88838">88838</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Screen goes black occasionally and logs say GPU hung
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </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>sanjay.linganna@gmail.com
          </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=112894" name="attach_112894" title="error state, Xorg logs, kernel log">attachment 112894</a> <a href="attachment.cgi?id=112894&action=edit" title="error state, Xorg logs, kernel log">[details]</a></span>
error state, Xorg logs, kernel log

I'm new to Linux & didn't really understand the past bugs, so sorry if this is
a duplicate.

Ubuntu Trusty 32-bit on a Thinkpad x61s (kernel 3.13.0-44 generic).
Screen goes completely black at times (no backlight even) and stays that way.
Switching to tty1 doesn't help.
This usually can be re-created by starting certain youtube videos
(<a href="https://www.youtube.com/watch?v=6eqryolAPow">https://www.youtube.com/watch?v=6eqryolAPow</a>). 
Closing the lid (going to suspend) then reopening will result in the screen
turning on again but without window decorators/toolbars/dock.
Was using Precise for a year or so without any video issues at all on this
machine.

SSH'ed in while screen blanked and got the following logs (attached), can get
other ones if needed.
kern.log
Xorg.0.log & old
i915_error_state

Thank you for your time and help, I really appreciate it.
-Sanjay</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
          <li>You are on the CC list for the bug.</li>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>