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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 - R9 390: [drm:radeon_vce_ring_test] *ERROR* ring 6 test failed after resume from hibernate"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93819">93819</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>R9 390: [drm:radeon_vce_ring_test] *ERROR* ring 6 test failed after resume from hibernate
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>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/Radeon
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>h.judt@gmx.at
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=121201" name="attach_121201" title="dmesg1">attachment 121201</a> <a href="attachment.cgi?id=121201&action=edit" title="dmesg1">[details]</a></span>
dmesg1

It does not happen always, but usually after a few hibernate/resume cycles (2
or 3, sometimes earlier). The following messages can be found in dmesg (see
attachment for full output).

[ 1001.941216] [drm] ring test on 0 succeeded in 0 usecs
[ 1001.941331] [drm] ring test on 1 succeeded in 0 usecs
[ 1001.941370] [drm] ring test on 2 succeeded in 0 usecs
[ 1001.941565] [drm] ring test on 3 succeeded in 0 usecs
[ 1001.941571] [drm] ring test on 4 succeeded in 0 usecs
[ 1001.967662] [drm] ring test on 5 succeeded in 0 usecs
[ 1001.967696] [drm] UVD initialized successfully.
[ 1002.249117] [drm:radeon_vce_ring_test] *ERROR* radeon: ring 6 test failed]
[ 1002.249139] [drm] ib test on ring 0 succeeded in 0 usecs
[ 1002.749193] [drm] ib test on ring 1 succeeded in 0 usecs
[ 1002.749221] [drm] ib test on ring 2 succeeded in 0 usecs
[ 1002.749304] [drm] ib test on ring 3 succeeded in 0 usecs
[ 1002.749354] [drm] ib test on ring 4 succeeded in 0 usecs
[ 1003.269160] [drm] ib test on ring 5 succeeded
[ 1013.788806] radeon 0000:01:00.0: ring 7 stalled for more than 10000msec
[ 1013.788809] radeon 0000:01:00.0: GPU lockup (current fence id
0x0000000000000008 last fence id 0x000000000000000a on ring 7)
[ 1013.788868] [drm:radeon_vce_ib_test] *ERROR* radeon: fence wait failed
(-35).
[ 1013.788874] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on
ring 7 (-35).

After that, if the machine hibernates and resumes once again, additional errors
will be printed and the X session becomes unusable (only the cursor blinking on
the terminal). I will attach the dmesg of this too, though it might be less
interesting.</pre>
        </div>
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