Re: on-board sound on ASUS TRX-40

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On Thu, 22 Oct 2020 14:51:00 +0200,
Dan Aloni wrote:
> 
> On Thu, Oct 22, 2020 at 02:36:16PM +0200, Takashi Iwai wrote:
> > On Thu, 22 Oct 2020 14:33:47 +0200,
> > Dan Aloni wrote:
> > > 
> > > On Thu, Oct 22, 2020 at 12:24:31PM +0200, Takashi Iwai wrote:
> > > > 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.
> > > 
> > > Upon plugging or unplugging the headphone, the unitid of 11 matches the
> > > unit in `trx40_mobo_connector_map`, although two events are happening -
> > > two for plug and two for unplug. There's another event for '7', and
> > > changing the second item of `static const struct usbmix_connector_map`
> > > from 11 to 7 does not seem to affect it.
> > 
> > Well, then I'm afraid that it has yet another mapping of the units.
> > You'd need to create the whole map from the topology, and rewrite the
> > connector_map as well.
> 
> Would be helpful a USB trace from KVM, when running a Windows VM that
> successfully manages this device following USB redirection? I can
> produce this given instructions, if you have them handy.

The topology is found in lsusb -v output.  It's the connection among
units.  More importantly, the maps only care about the certain units
like input/output terminals and feature unit.  You can look at those
and correct the corresponding unit ids.


Takashi



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