Update: I found the solution. At least when using command line programs like mplayer. UBports on the PonePhone seems to default to trying to use PulseAudio, which doesn't work. It needs to be using ALSA, but the regular user account selects the wrong ALSA device by default. For some reason the root user gets the right device. I used the "aplay -l" command to get a list of local audio devices: $ aplay -l card 0: PinePhone card 1: sun9ihdmi It seems the regular user is selecting card 1 when it needs to be selecting card 0. So to play audio with mplayer (or other audio players) I need to manually specify card 0. With mplayer that looks like this: mplayer -ao alsa:device=hw=0 audio-file.mp3 I'm currently looking for a way to make this selection permanent and consistent for all audio players, but for now I can at least funnel audio through mplayer on my PinePhone.

Just to point out you will need Tow-Boot installed to run 20.04 on PP and PPP https://tow-boot.org/devices/pine64-pinephoneA64.html though must admit I need to read the instructions a few more times to understand them. For instance dd if=mmcboot.installer.img of=/dev/XXX bs=1M oflag=direct,sync status=progress the XXX in the above is that as is or should a specific version code be add here. Something to look at over the weekend on the PP.

@newguy Not sure if that is possible at the moment.