Headphones outputting mono only?

[Subsentient]

Is anyone else getting mono only? How about anyone who has working stereo? Please also post your phone revision (e.g. braveheart) and the OS you're on.

I have a BH device and tested it now explicitly on mobian + posh with headphones.
I do have proper stereo, tested in firefox with some online sound test tool.
What does not work for me is the sound input: it is very noisy, low and voice is not understandable. Cannot use it for calls - just hearing on pinephone side.
Is sound input ok for you?

Yes, it works for me, but you should check your audio configuration in your modem, particularly, run the AT command:

Code:

AT+QDAI=1,0,0,2,0,1,1,1

What kernel are you using? Upstream Pine64 kernel? Megous kernel?