[LAU] Please help with audio interfaces that keep changing after reboot

[drew Roberts]

On Saturday 08 May 2010 13:09:27 Fernando Lopez-Lezcano wrote:
> On Fri, 2010-05-07 at 19:17 -0400, Geoff King wrote:
> > Hello,
> > I have problem that I've been trying to figure out with no luck.  The
> > audio interface keeps changing for example:
> >
> > Today:  Maudio 24/96 is hw:1 and Midisport 4x4 Anniv is hw:0.
> > Yesterday before reboot: Maudio 24/96 is hw:0 and Midisport 4x4 Anniv is
> > hw:1 etc, back and forth, each reboot...
> > I usually use qjackctl and have to keep changing the presets with
> > settings which is annoying.
> >
> > I would greatly appreciate it if someone could provide me some clues
> > or links on how to fix this?
> >
> > I'm Using Fedora 12 w CCRMA.
>
> While you can force the order with the proper index=xx incantations in
> modprobe.d/ files, that will fail if the computer is booted with a usb
> sound card attached.
>
> The proper fix is to not use the index (a number) when addressing the
> card but use the name of the card. That will never change across
> reboots. So, instead of "hw:0" use "hw:NAME" where NAME is what is shown
> between square brackets in the output of cat /proc/asound/cards

Does this solve the identical sound card problem in any way? Say two identical 
usb sound cards at the low and and two delta 1010's a little further up the 
chain as examples.
>
> -- Fernando
>

all the best,

drew