<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 - GPU hangs using hardware acceleration"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=85320">85320</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU hangs using hardware acceleration
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>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>Drivers/Gallium/r600
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>ken20001@ukr.net
          </td>
        </tr></table>
      <p>
        <div>
        <pre>With new kernel 3.18RC1 trying hardware acceleraton I discovered GPU hangs.
Running 'mpv -vo vdpau --hwdec vdpau filename' starts to play movie and all it
seems ok. But if we try to rewind forward/backward first it, playing, hangs.
Than all system hangs. Switching to another VT in dmesg appears:

[drm:r600_ib_test] *ERROR* radeon: fence wait failed (-35).
[drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35).

Switching back to VT7 we can watch that image appears and disappears.
Restarting ligtdm service allowed me to log in to account. But anyway all
system switched to XRender and no OpenGL until I fully reboot.

mpv --version
mpv git-f5a19f6 (C) 2000-2014 mpv/MPlayer/mplayer2 projects
 built on 2014-10-18T11:58:42
ffmpeg library versions:
   libavutil       54.7.100
   libavcodec      56.1.100
   libavformat     56.4.101
   libswscale      3.0.100
   libavfilter     5.1.100
   libavresample   2.1.0

vdpauinfo 0.1-1
mesa-vdpau-drivers 10.4~git1410211930.ef280c~gd~t
libgl1-mesa-glx 10.4~git1410211930.ef280c~gd~t

Kubuntu 14.04.1
Linux: 3.18RC1 x86_64
Graphics: Radeon HD2600 XT</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>