Re: How to unmute the sound?
On Sun, 17 Feb 2008 16:25:50 +0100
Richard Lyons <richard@the-place.net> wrote:
> On Sun, Feb 17, 2008 at 06:11:52PM +0530, Kushal Kumaran wrote:
>
> > On Sun, 17 Feb 2008 12:39:12 +0100
> > Richard Lyons <richard@the-place.net> wrote:
> [...]
> >
> > > How do you supply options to modules? I could try it anyway.
> > >
> >
> > You add them to your modprobe command line, like so:
> > modprobe snd-hda-intel model=5stack
> >
> > There is a list of supported models in
> > Documentation/sound/alsa/ALSA-Configuration.txt in the linux source
> > distribution. I found an online copy at
> > http://www.mjmwired.net/kernel/Documentation/sound/alsa/ALSA-Configuration.txt
>
> Ok. My model number is not listed, but the only likely ones listed
> are model=acer and model=acer-laptop. I assume I need to restart
> alsa after each experimental modprobe. Or do I have to remove the
> existing module first, or what?
>
You'll have to remove the module first, using modprobe -r. Then reload
the module with modprobe snd-hda-intel model=<your choice of model>
> > If you can get it working with one of these options, you can set up
> > the defaults options in one of the files in /etc/modprobe.d/
> > (alsa-base, I think, but I'm not sure).
>
> Looks as though alsa-base expects an environment variable
> $CMDLINE_OPTS to be set first. I wonder how to get that to happen...
>
See the manpage of modprobe.conf for what that variable does. You
don't have to worry about it when adding your entry into alsa-base.
--
Kushal
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