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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - X randomly freezes ("stuck on render ring")"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=87453">87453</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>X randomly freezes ("stuck on render ring")
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>xfAhqoidntcombh@TrashMail.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=111000" name="attach_111000" title="/sys/class/drm/card0/error, syslog, lshw">attachment 111000</a> <a href="attachment.cgi?id=111000&action=edit" title="/sys/class/drm/card0/error, syslog, lshw">[details]</a></span>
/sys/class/drm/card0/error, syslog, lshw

The gui on my laptop randomly freezes, about >1 times a week.
The mouse pointer moves, but no any other response to mouse nor keyboard, at
least not in ~20 seconds.
Ctrl-Alt-F3 works, I succeeded to log in, save some log and shut it down.
I noticed a "gpu crash" in syslog.
I attach the reading of /sys/class/drm/card0/error, and some other files.

I do not know whether it is relevant, but:
- I am using an external HDMI monitor (solely, i.e. the laptop's screen this
time is off)
- For a while a new Xubuntu release is available, and I am clicking "Ask me
Later". (Has not done the upgrade yet.)
- Applications I use: Thunderbird, xfce4-terminal, Virtualbox, Firefox, evince</pre>
        </div>
      </p>
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