It is definitely an issue after the NVIDIA driver installation. Headphones and built-in speakers stop working. Only the HDMI audio works. There was a small kernel update from 5.4.0-26-generic to 5.4.0-28-generic last night so I will try to see if that makes any difference.
The issue I am having seems similar to this: https:/ /bugs.launchpad .net/ubuntu/ +source/ alsa-driver/ +bug/1833161
It is definitely an issue after the NVIDIA driver installation. Headphones and built-in speakers stop working. Only the HDMI audio works. There was a small kernel update from 5.4.0-26-generic to 5.4.0-28-generic last night so I will try to see if that makes any difference.