[alsa-devel] No sound from Mac Pro headphone port

[Raymond Yau]

>
> As I have time to work on this ...
>
> ALSA info headphone unplugged:
>
> http://www.alsa-project.org/db/?f=df059dc59473b812033be118a26a553767879f41
>
> Headphone plugged:
>
> http://www.alsa-project.org/db/?f=b91b9b46a1abe043b9dfc3bc4802b203e6a6c2e5
>

You did not retask correctly

1) change hp from ext rear to ext front
2) change Mic from ext rear to ext front

The driver don't create channel mode when there is only two jacks at ext
rear

3) clear misc bit 8 of pin default of line out

You should use save as boot default instead of dynamic reconfig and reboot