Hi,  
  
I just installed Mint 20.1, which is based on the most recent Ubuntu, on a x86-64 system ran  
  
apt install libpulse-dev  
  
and then built the VM at the git HEAD, and unlike before sound works perfectly.  This is with a 5.3 image.  
  
Off to try this on my PI 400...  
  
cheers  
  
bruce  

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