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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 - [i915] GPU hang in plasma shell, reason: Hang on render ring"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99325">99325</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[i915] GPU hang in plasma shell, reason: Hang on render ring
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg 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>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>rainbert@posteo.de
          </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=128819" name="attach_128819" title="error state batch buffer">attachment 128819</a> <a href="attachment.cgi?id=128819&action=edit" title="error state batch buffer">[details]</a></span>
error state batch buffer

For half a year I have been experiencing regular GPU hangs in my arch linux
KDE4/Plasma installation on a Lenovo Thinkpad X1 Carbon 4th generation (2016). 

It *only* happens when I am using libreoffice word processing software: While
typing text, the computer would spontaneously freeze for 10-20 secs, input is
interrupted but I can move the mouse, then a notification appears in the system
tray reading 
"KWin Window Manager 
Desktop effects were restarted due to graphics reset.", 
and then I can continue working. 

(The notification is similar to this message: <a href="https://i.imgur.com/DSgAQBZ.png">https://i.imgur.com/DSgAQBZ.png</a> ) 

The hang occurs regularly every 2-5 minutes but only while using libreoffice. 

Sometimes, about 1 in 10 cases, the mouse pointer freezes as well and the
X-Server would crash after 10-20 seconds instead of recovering. 

The bug has been persistent through diverse system updates I did during the
last half year. 


File with GPU error state attached. 

Do you need additional information? 
Thanks a lot.</pre>
        </div>
      </p>


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