So I stopped the VM and booted into my Ubuntu 24X that I installed a long time back.
It needed updating and upgrading, so I did that, there were several hundred packages to be upgraded.
Along the way, it went totally silent too.
In the Ubuntu, I went in with SSH from Windows and tried alsamixer, and it said there were no sound devices.
speaker-test runs with no sound and no errors.
Both aplay and paplay play a small file with no sound and no errors.
Pipewire seems to be present there too.
On the Ubuntu, what can I do to let alsamixer and/or pulseaudio find my soundcard?
I thought that maybe pipewire is muting things, but if amixer does not see a soundcard, I don't know what else I can try in the CLI.