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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 - drm/i915 GPU HANG: stuck on render ring"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103425">103425</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>drm/i915 GPU HANG: 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>simmo.saan@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=135015" name="attach_135015" title="/sys/class/drm/card0/error dump">attachment 135015</a> <a href="attachment.cgi?id=135015&action=edit" title="/sys/class/drm/card0/error dump">[details]</a></span>
/sys/class/drm/card0/error dump

After coming back to my locked laptop (Xubuntu 16.04) the screen was
unresponsive. SSHing in had this in dmesg:

[12352.526878] [drm] stuck on render ring
[12352.527343] [drm] GPU HANG: ecode 8:0:0xbf746ffe, in Xorg [1157], reason:
Ring hung, action: reset
[12352.527345] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[12352.527346] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[12352.527347] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[12352.527348] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[12352.527349] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[12352.529474] drm/i915: Resetting chip after gpu hang
[12358.527200] [drm] stuck on render ring
[12358.527677] [drm] GPU HANG: ecode 8:0:0xbf746ffe, in Xorg [1157], reason:
Ring hung, action: reset
[12358.527757] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast,
banning!
[12358.528992] drm/i915: Resetting chip after gpu hang
[13092.568048] [drm] stuck on render ring
[13092.568632] [drm] GPU HANG: ecode 8:0:0x0a177ffe, in Postman [9474], reason:
Ring hung, action: reset
[13092.570766] drm/i915: Resetting chip after gpu hang</pre>
        </div>
      </p>


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