RE: [gentoo-user] Sound jack isolations

> -----Original Message-----
> From: Florian Philipp [mailto:lists@f_philipp.fastmail.net]
> Sent: Tuesday, January 29, 2008 2:20 PM
> To: gentoo-user@l.g.o
> Subject: Re: [gentoo-user] Sound jack isolations
>
>
> On Tue, 2008-01-29 at 12:58 -0600, Marzan, Richard non Unisys wrote:
> > I tried googling around but no helpful content so far. I have a
laptop
> > with built-in sound. It uses the HDA_intel kernel module. My problem
is
> > that I can't silence the onboard/built-in speakers when I plug in
the
> > headphones to the machine. Muting sound would lead to all jacks and
> > audio ports to be silenced -- not just the built-in speakers, which
I
> > intend to mute solely leaving sound alive on the headphone jacks.
There
> > are no channels readily observable to differentiate where sound goes
and
> > to which port with alsa-mixer. The behavior I would like to achieve
is
> > one that will allow me to mute onboard speakers while continuing to
have
> > the headphones receive audio signals. Has anyone ever done this? Any
> > pointers to documentation will be appreciated.
>
> Does it work with Windows? I'd expect such things to be implemented i
> hardware.


Yeah, it worked with Vista, when I first bought and booted it, before I
nuked it off my system. It should be implemented in the hardware but to
save a few gates it is not done. They leave it up to software engineers,
which is alright when you publicly provide the documentation on how to
do it. 
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