OAbout a week ago, I had sound in Cauldron, but not in Official. Now I have no sound in either -- some of the time. Video seems to be quite O.K.
This seems to have happened after I updated Minitube to the current version. There are videos in YouTube playable in a browser window, but not in apps.
My sound card is an Xonar with "home theatre" capabilities. Looking at pavucontrol, sound seems to be going to "Line Out" which has no sink, or headphones. Alsamixer cannot see a sink for a basic 2 speaker setup.
I have installed 2 x .asoundrc files in the alternative, but neither one made any diffderence. I can shoot more general problems, but ALSA and Pulse seem to be constantly at war with one another.
That is about all that I can tell you. If I need to create a driver for the missing sink in /proc, I will need to know the parameters.