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J.Nerdy

HDMI audio on macOS 10.14.6 KVM

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Successfully passed through an rx570 to VM, running 4k glass smooth.  

 

However, can not for the life of me get HDMI audio passed through.  maxOS only recognizes soundflower emulated devices which won't output to monitor speakers.

 

Been trying for a month, so any advice greatly appreciated.  

 

Thanks!

 

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All of the above.

 

(I have used clover to do that - are there further steps to make sure that I need to undertake?)

 

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You have to make sure that the graphic audio is using same bus and difference function as graphic gfx video in xml file.

 

Then hdmi should work properly

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I'm trying to get HDMI passthrough audio to work too and no luck so far.

Here's my device XML:

<hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
      </source>
      <alias name='hostdev0'/>
      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0' multifunction='on'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x06' slot='0x00' function='0x1'/>
      </source>
      <alias name='hostdev1'/>
      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x1' multifunction='on'/>
    </hostdev>

and the Nvidia card from lspci:

06:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050] (rev a1)
06:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)

Sound doesn't come through the remote desktop. Windows 10, however, does come through. Using Google remote desktop to access the VMs.

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