I am not going to mark this as solved because I could not find a away to keep the motherboard sound card active in Linux, but I did find a work-around. The usb sound card/dongle that I mentioned in my first post of Feb 27th arrived and it worked without a hum right out of the gate. I am posting this so if someone has a similar problem, they will know there is an alternative. Thanks again to those who offered suggestions along the way.
Statistics: Posted by dhunt2206 — 2024-03-04 16:50