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

david gnome at hawaii.rr.com
Sat May 8 08:51:06 UTC 2010


Jeremy wrote:
> Philipp wrote:
>> Excerpts from Geoff King's message of 2010-05-08 01:17:39 +0200:
>>> 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.
>>>
>>> thanks, Geoff
>> The easiest solution might be, using my setup as example:
>>
>> aplay -l
>> **** List of PLAYBACK Hardware Devices ****
>> card 0: UA25 [UA-25], device 0: USB Audio [USB Audio]
>>   Subdevices: 0/1
>>   Subdevice #0: subdevice #0
>> card 1: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
>>   Subdevices: 1/1
>>   Subdevice #0: subdevice #0
>>
>> So I use hw:UA25 in jack instead of hw:0
>> Jack always uses this device if it can find it, it always just works.
>> If you have multiple other devices you need hardwired you might need
>> some other trickery, but I guess in your case it's a simple matter of
>> figuring out the right name for the maudio interface.
> 
> And maybe it's helpful to mention that you have to enter the cardname
> manually in QJackCtl the very first time you configure it this way, you
> can't select it. Out of my head the cardname for a M-Audio 24/96 is
> 'M2496' so in QJackCtl you can try 'hw:M2496' in the Interfaces field
> (without the quotes of course).

The one on my laptop is "USB Audio Codec". QJackCTL won't accept it, 
name has spaces ...

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


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