[alsa-devel] [RFC PATCH 1/2] ALSA: hda - Fix "PCM" name being used on one DAC when there are two DACs

[David Henningsson]

On 2014-10-16 17:02, Raymond Yau wrote:
>
>
> >
> > In the scenario where there is one "Line Out", one "Speaker" and one
> > "Headphone", and there are only two DACs, two outputs will share a DAC.
> > Currently any mixer on such a DAC will get the "PCM" name, which is
> > misleading. Instead use "Headphone+LO" or "Speaker+LO" to better
> > specify what the volume actually controls.
>
> Are there any examples ?
>

I used "hda-emu 
codecs/canonical/alc3226-dell-precision-m2800-ccert-201404-14986 -i 1" 
when developing the patches.

I don't have any hardware available myself that exposes this behavior, 
but I can maybe fake one with hdajackretask, if that counts...

// David