on-board sound on ASUS TRX-40

[Takashi Iwai]

On Thu, 22 Oct 2020 12:18:52 +0200,
Dan Aloni wrote:
> 
> On Thu, Oct 22, 2020 at 11:14:03AM +0200, Takashi Iwai wrote:
> > On Thu, 22 Oct 2020 10:17:46 +0200,
> > Dan Aloni wrote:
> > > 
> > > Hi,
> > > 
> > > The on-board earphone jack does not seem to work on an ASUS TRX-40
> > > board. Here's the alsa-info.sh output:
> > > 
> > > http://alsa-project.org/db/?f=7a94c1b1eec4b2e623c75770364ec43c33d6c95c
> > > 
> > > Tried coding up the patch below, but it _does not_ fix the problem. It
> > > does shows the earphone as 'plugged' though. Verified that it's not an
> > > hardware issue via Windows.
> > > 
> > > Please instruct on how to debug this further.
> > 
> > Did you try to add connector_map, too?
> 
> Yes, and it did not help. Anything else I can try?

Well, you need to figure out via trial and error.
It should receive some event processed in
snd_usb_mixer_interrupt_v2(), and you can check which widget is
involved, at least.


Takashi