[alsa-devel] [PATCH 02/10] ALSA: hda - Add channel-mode support to Realtek auto-parser

[Raymond Yau]

2011/5/2 Takashi Iwai <tiwai at suse.de>

> At Mon, 2 May 2011 10:06:15 +0800,
> Raymond Yau wrote:
> >
> > 2011/4/30 Takashi Iwai <tiwai at suse.de>
> >
> > > This patch adds the support of "Channel Mode" enum control to Realtek
> > > auto-parser.  When line-in or mic-in jacks are capable to output and
> > > free DACs are available, the driver allows to switch to multi-channel
> > > mode via "Channel Mode" enum switch, as already implemented in some
> > > preset cases.
> > >
> > > Not implemented in all Realtek codecs.  Currently, ALC880, 882, 861,
> > > 662 and the compatible codecs are supported.
> > >
> > > Signed-off-by: Takashi Iwai <tiwai at suse.de>
> > > ---
> > >
> >
> > Why the line out become "speaker" for G41M-ES2L with 3 audio jacks at
> rear
> > panel ?
> > The driver won't  create "Channel Mode" control and it cannot support
> > surround51
>
> It's just because of pin fixup that I'm going to revert.
>
> Even revert  the pin config, and distable auto mute,
the channel mode still allow 2, 4 or 6 channels

IT seem that there is no way to use "HP" as "Side" to support surround 7.1
as mentioned in the user manual (Chapter 5 Appendix)

5-1-1 Configuring 2/4/5.1/7.1-Channel Audio