I use ALSA not pulse. I had it working the way I want and then started computer after an update and every time I try to play a video there is a report that the drivers are missing. This is an example:
Audio output failed:
The audio device "sysdefault:CARD=Intel" could not be used:
No such device.
Previously cat /proc/asound/modules showed three cards now it shows nothing.
These are the cards that seem to have lost all their content:
pcm ----no soundcards----
cards ---no soundcards ----
Without doing a system re-install is there a way of rebuilding the proc/asound files so that the soundcard entries are restored?