OK, I finally figured out how to implement workaround suggested in comment 7 above, and so far that seems to work, although I had to play around a lot with Alsamixer first. When I first implemented the work around I had playback sound out of one channel only. Went into Alsamixer and set all channels to on at a moderate level. Turned out I had to set the H/W and H/W1 channels to "PCM Out" before I had complete sound.
So now the sound works, but the Sound Preferences button and function under Systems appears to be disabled. Is this endemic to this workaround?
OK, I finally figured out how to implement workaround suggested in comment 7 above, and so far that seems to work, although I had to play around a lot with Alsamixer first. When I first implemented the work around I had playback sound out of one channel only. Went into Alsamixer and set all channels to on at a moderate level. Turned out I had to set the H/W and H/W1 channels to "PCM Out" before I had complete sound.
So now the sound works, but the Sound Preferences button and function under Systems appears to be disabled. Is this endemic to this workaround?