If you look at the mixer log, you see that all internal soundcard ports are turned off: https://linux-hardware.org/index.php?probe=db3db2dc65&log=amixer See also here: Lei Mao's Log Book – Ubuntu 18.04 LTS No Sound Fix
If you look at the mixer log, you see that all internal soundcard ports are turned off: https://linux-hardware.org/index.php?probe=db3db2dc65&log=amixer See also here: Lei Mao's Log Book – Ubuntu 18.04 LTS No Sound Fix