NO sound

[Douglas Pollard]

I bought a HP Pavilion Desktop Gaming machine new. I replaced Windows 10 
with the latest version of Xubuntu and I have no sound. MY monitory has 
speakers but no sound when plugged in I also have to external speakers 
110V driven and have no sound in them either so it seems I am not 
getting sound out of Xubuntu . The possessor is Rysen 5 2400G. *gg DDR 
i2666 Sdram, I tb hard drive, 128 GB Sata solid state drive, AMD Radeon 
Rx 580 graphics card, I think xubuntu is installed on the ssd 128GB G 
card   I can check that if you need that info. I have another old box 
that is a Dell computer hooked up sound to it and it works. OH sound did 
work with windows so like it's a set up problem ??    Thanks for any 
help anyone can give.  Thanks, Doug Pollard.