Comment 9 for bug 1949329

Impish:

Install the impish on that Dell machine (sdw audio without headset), enable the impish-proposed ppa in the /etc/apt/sources.list, sudo apt-get update, sudo apt install libasound2, reboot, check the gnome-sound-setting, the speaker and internal digital mic show in the UI, this means the pulseaudio loads the correct UCM for this machine. And test playback and recording, all worked well.

Verification done on impish.