Comment # 11 on bug 1203922 from Takashi Iwai

(In reply to Sven H from comment #9)
> (In reply to Takashi Iwai from comment #8)
> > Did you try the sound output from the headphone / headset?
> > Also what about the input?  Do the built-in mic and the headset mic work?
> 
> Yes, sound output does indeed work from the wireless Earbuds via Bluetooth.
> The built-in speakers don't.

Doesn't it have a headset jack?  If yes, please test with it.  That's via a
different path from the BT / wireless, and if the (wired) headset works, it's
only about the missing speaker amplifier.

> The built-it mic also works, but only when "Digital Microphone" is selected.

What's else?  If you plug the headset, doesn't the headset input work?