On #postmarketos 21.03.1 with #phosh, the #pinephone can play ogg files in #lollypop fine over bluetooth (by changing output in audio sources list).
Anyone got pointers for playing mp3, flac, m4a files over the headphone jack?
They skip in #mpv, and don't show up in lollypop. The headphone jack doesn't show up in sound settings.
The other part of the solution was to install #pavucontrol, which allowed me to set the (proportedly unplugged) headphone jack as the output. I guess the #pinephone hardware was having a hard time detecting the plug state of that. Sadly, plugging into my speakers produced a quieter sound than using the internal speaker.
@zachdecook Just guessing: You may be missing some gstreamer plugins. Try installing gst-plugins-bad and if that does not help gst-plugins-ugly.
@linmob thanks! It looks like I didn't have any installed. That seemed to do the trick.