two sound cards. USB and Onboard

Warren J. Beckett warren at a-generic.com
Fri Nov 12 14:35:20 UTC 2004


Hi list,

First of all kudos to the Ubuntu team. Fantastic work!

I have a dell inspiron 1100 laptop that has an integrated sound card
that uses the snd_intel8x0 module, which works well.

I also have a USB headset that has it own sound controller and appears
as a snd_usb_audio, which also works well.

My problem is if I boot the latop without the USB headset, the onboard
device is assigned Hardware Device 0, and /dev/dsp. When I plug the USB
device in it is assigned HW:1 and /dev/dsp1. BUT if I  boot it with it
plugged in the USB device gets /dev/dsp ( and hw:0 ), and the onboard
controller is assigned /dev/dsp2

I have tried to alter this behaviour via the /etc/modutils and the
snd_count option but nothing seems to help. 

What I am after is force the onboard device to be hw:0 ( dsp ) and let
the USB device ( if at all present ) to be anything else.

Any ideas?

Cheers,

Warren.





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