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

Philipp Überbacher hollunder at lavabit.com
Sun May 9 06:55:29 UTC 2010


Excerpts from david's message of 2010-05-09 01:33:42 +0200:
> aplay -l:
> 
> **** List of PLAYBACK Hardware Devices ****
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 
> 82801DB-ICH4]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 
> [Intel 82801DB-ICH4 - IEC958]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: default [USB Audio CODEC ], device 0: USB Audio [USB Audio]
>    Subdevices: 0/1
>    Subdevice #0: subdevice #0
> card 3: Modem [Intel 82801DB-ICH4 Modem], device 0: Intel ICH - Modem 
> [Intel 82801DB-ICH4 Modem - Modem]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> 
> cat /proc/asound/cards
> 
>   0 [I82801DBICH4   ]: ICH4 - Intel 82801DB-ICH4
>                        Intel 82801DB-ICH4 with ALC250 at irq 17
>   1 [default        ]: USB-Audio - USB Audio CODEC
>                        Burr-Brown from TI               USB Audio CODEC 
>   at usb-0000:00:1d.1-2, full s
>   2 [XMidi1X1       ]: USB-Audio - E-MU XMidi1X1
>                        E-MU Systems, Inc. E-MU XMidi1X1 at 
> usb-0000:00:1d.7-3.4.4, full speed
>   3 [Modem          ]: ICH-MODEM - Intel 82801DB-ICH4 Modem
>                        Intel 82801DB-ICH4 Modem at irq 17
> 
> >> Then your card name is probably 'default' and QJackCtl should accept
> >> 'hw:default' then.
> >>
> >> Best,
> >>
> >> Jeremy
> > 
> > I'd be careful with 'default'. Afaik 'default' is a special device in
> > alsa which has dmix automatically enabled and who knows what else. I'm
> > not sure this is true in jack context, I'd just be careful and rather
> > use a proper name. Also 'default' probably is another name for hw:0 plus
> > the aforementioned dmix.
> 
> Ah, that explains why "default" in JACK is the Intel audio this morning.
> 
Wow, you USB device really is called default. Quite bad. I must admit
that I'm surprised. I'd also try to use hw:default, which hopefully is
different from (default) in qjackctl, whatever that may be.

Really confusing..
-- 

Regards,
Philipp



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