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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [UVD] uvd cannot enable on my RadeonHD7870"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73378">73378</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[UVD] uvd cannot enable on my RadeonHD7870
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>at86mouse@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Radeon
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=91631" name="attach_91631" title="linux-x86_64-full-dmesg">attachment 91631</a> <a href="attachment.cgi?id=91631&action=edit" title="linux-x86_64-full-dmesg">[details]</a></span>
linux-x86_64-full-dmesg

I'm try to play video through vdpau , but vainfo shows no h264 VLD codec
detecting.
libva info: VA-API version 0.34.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'vdpau'
libva info: Trying to open /usr/lib/dri/vdpau_drv_video.so
libva info: Found init function __vaDriverInit_0_33
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.34 (libva 1.2.1)
vainfo: Driver version: Splitted-Desktop Systems VDPAU backend for VA-API -
0.7.4
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD

env:
LIBVA_DRIVER_NAME=vdpau
VDPAU_DRIVER=radeonsi

The dmesg show me some ib ring test failed, but i don't know how to going on,
even pass (radeon.dpm=0) to kernel as the same error.
[    5.236963] [drm:radeon_uvd_send_upll_ctlreq] *ERROR* Timeout setting UVD
clocks!
[    5.236972] [drm:uvd_v1_0_ib_test] *ERROR* radeon: failed to raise UVD
clocks (-110).
[    5.236977] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on
ring 5 (-110).

And this command result that i don't know what its mean:
root@ArchCC /home/atmouse # radeontool regmatch 0x0718  
0x0718    0x0000001a (26)
root@ArchCC /home/atmouse # radeontool regmatch 0x071c
0x071c    0xc080001c (-1065353188)
root@ArchCC /home/atmouse # radeontool regmatch 0x0720
0x0720    0x3168680e (828925966)</pre>
        </div>
      </p>
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