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    <body><span class="vcard"><a class="email" href="mailto:peter@lekensteyn.nl" title="Peter Wu <peter@lekensteyn.nl>"> <span class="fn">Peter Wu</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [NVC1] HDMI audio device only visible after rescan"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75985">bug 75985</a>
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            <th>What</th>
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           <td style="text-align:right;">CC</td>
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           <td>peter@lekensteyn.nl
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [NVC1] HDMI audio device only visible after rescan"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75985#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [NVC1] HDMI audio device only visible after rescan"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75985">bug 75985</a>
              from <span class="vcard"><a class="email" href="mailto:peter@lekensteyn.nl" title="Peter Wu <peter@lekensteyn.nl>"> <span class="fn">Peter Wu</span></a>
</span></b>
        <pre>Possibly interesting information from
<a href="https://devtalk.nvidia.com/default/topic/609790/no-hdmi-sound-w-optimus-in-linux/">https://devtalk.nvidia.com/default/topic/609790/no-hdmi-sound-w-optimus-in-linux/</a>

On Windows, the audio device is not visible normally, but when a HDMI audio
cable is inserted, suddenly the audio device appears. Perhaps the Windows
driver is doing some rescanning automatically?


Related: 20/111 Nvidia devices report an audio device. AFAIK newer machines
have their HDMI port connected to the Nvidia card, so something is probably
missing there. See
<a href="https://lists.freedesktop.org/archives/nouveau/2016-July/025619.html">https://lists.freedesktop.org/archives/nouveau/2016-July/025619.html</a></pre>
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