Re: how to disable unused sound chip

[Bob <spam@homeurl.co.uk>]

Damon L. Chesser wrote:
> On Tue, 2008-11-04 at 18:07 +0200, Juha Tuuna wrote:
>   
> > Damon L. Chesser wrote:
> >     
> > > ...
> > > How to I use udev (and hotplug?) to disable this unused ATI sound chip
> > > and to select my onboard Nvidia sound chip?
> > >       
> > Try /etc/modprobe.d/blacklist
> > Add the ATI module to the list, that should do it.
> >
> >     
> Juha,
>
> Yes, that worked.  Just to make a close loop, I am posting what I did
> here:
>
> lsmod did not show any ati driver for anything, but did show
> snd_ha_intel and since I know I am not running an intel sound chip and
> the sound device is listed as ATI HA with lspci, I ran rmmod
> snd_ha_intel and I had sound.  
>
> I added "blacklist snd_ha_intel" to the /etc/modprobe.d/blacklist and
> rebooted.  It came up with sound, and my selected "sound device" for
> gkrellm volume was still active (previously, gkrellm would not have any
> volume controls after a reboot).
>   

Another solution would be not to disable / blacklist it but to stop it 
from becoming the
default sound device by putting a line at the bottom of 
/etc/modprobe.d/alsa-base like this

options snd-ha-intel index=-2

I have to do something similar to stop the microphone in my webcam from 
randomly becoming master, it has the advantage that you can still use 
the device when / if you want / need.

Good luck