The sound used to work fine but this morning ‘do not disturb’ appeared in notofications. I think I turned it off but the sound has not come back.
I did: sudo alsa-info.sh --upload
and got: Your ALSA information is located at http://alsa-project.org/db/?f=95405390fe5e5648111cc3b475b7ab1033d60025
It does not help me.