I get sound from the Realtex ALC889 on my motherboard in Windows 10, and I used to get it with Ubuntu 17.10. But when I upgraded to 18.04 Ubuntu no longer recognizes the device. Under the Sound Settings I get: HDMI/DisplayPort2 - GT216 HDMI Audio Controller Digital Output (S/PDIF) - Built-in Audio
The HDMI drives the sound on my 24" TV, but the TV has lousy sound. I want a stereo analog output to drive my separate speakers.
~$ lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller 02:00.1 Audio device: NVIDIA Corporation GT216 HDMI Audio Controller (rev a1)