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

david gnome at hawaii.rr.com
Mon May 10 09:33:03 UTC 2010


drew Roberts wrote:
> 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.

Hmm, IIRC, can't you use the alias option to assign a name to a specific 
soundcard?

-- 
David
gnome at hawaii.rr.com
authenticity, honesty, community


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