MultiCard: Userspace solution

[Carlo Capocasa-2]

Hi everyone!

I made a quick fix solution to the alsa multicard problem that turns up
when you have more than one soundcard. In this case, the alsa device
number is volatile and you have to update your QJackCtl config after
every boot.

The description is here:

https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix

It is on the Ubuntu Wiki, because that is what I use, but the
instructions should work unchanged for any linux distribution.

Thanks for having a look! Let me know if I can improve something.

Carlo

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[Ivica Ico Bukvic-3]

> Hi everyone!
>
> I made a quick fix solution to the alsa multicard problem that turns up
> when you have more than one soundcard. In this case, the alsa device
> number is volatile and you have to update your QJackCtl config after
> every boot.
>
> The description is here:
>
> https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix
>
> It is on the Ubuntu Wiki, because that is what I use, but the
> instructions should work unchanged for any linux distribution.
>
> Thanks for having a look! Let me know if I can improve something.
>
> Carlo

Doesn't the Alsa's option card numbering work any more?

Ico

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[Carlo Capocasa-2]

Never got it to work...

Ivica Ico Bukvic wrote:

>> Hi everyone!
>>
>> I made a quick fix solution to the alsa multicard problem that turns up
>> when you have more than one soundcard. In this case, the alsa device
>> number is volatile and you have to update your QJackCtl config after
>> every boot.
>>
>> The description is here:
>>
>> https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix
>>
>> It is on the Ubuntu Wiki, because that is what I use, but the
>> instructions should work unchanged for any linux distribution.
>>
>> Thanks for having a look! Let me know if I can improve something.
>>
>> Carlo
>
> Doesn't the Alsa's option card numbering work any more?
>
> Ico

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[Fernando Lopez-Lezcano]

On Sun, 2009-07-05 at 18:57 +0200, Carlo Capocasa wrote:

> Hi everyone!
>
> I made a quick fix solution to the alsa multicard problem that turns up
> when you have more than one soundcard. In this case, the alsa device
> number is volatile and you have to update your QJackCtl config after
> every boot.
>
> The description is here:
>
> https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix
>
> It is on the Ubuntu Wiki, because that is what I use, but the
> instructions should work unchanged for any linux distribution.
>
> Thanks for having a look! Let me know if I can improve something.

At least in the case of Fedora using the card id (not the number) in
qjackctl works fine without any auxiliary script.

-- Fernando


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[Giso Grimm]

Hi,

why not simply use "hw:IO" as a device in jack? That works perfectly
well for me. It is just overwritten by qjackctl if I select a sound card
from the list. Works also for all other ALSA applications (and you can
create aliases in .asoundrc of you like, e.g.:

pcm.!default {
  type plug
#  slave { pcm "hw:Digi968,0" }
  slave { pcm "hw:DSP" }
  route_policy duplicate
}

should work with non-plug definition as well).

-- Giso


Carlo Capocasa wrote:

> Never got it to work...
>
> Ivica Ico Bukvic wrote:
>>> Hi everyone!
>>>
>>> I made a quick fix solution to the alsa multicard problem that turns up
>>> when you have more than one soundcard. In this case, the alsa device
>>> number is volatile and you have to update your QJackCtl config after
>>> every boot.
>>>
>>> The description is here:
>>>
>>> https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix
>>>
>>> It is on the Ubuntu Wiki, because that is what I use, but the
>>> instructions should work unchanged for any linux distribution.
>>>
>>> Thanks for having a look! Let me know if I can improve something.
>>>
>>> Carlo
>> Doesn't the Alsa's option card numbering work any more?
>>
>> Ico
>
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user@...
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user

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[hollunder]

On Mon, 06 Jul 2009 09:20:43 +0200
Giso Grimm <gg3137@...> wrote:

> Hi,
>
> why not simply use "hw:IO" as a device in jack? That works perfectly
> well for me. It is just overwritten by qjackctl if I select a sound
> card from the list. Works also for all other ALSA applications (and
> you can create aliases in .asoundrc of you like, e.g.:
>
> pcm.!default {
>   type plug
> #  slave { pcm "hw:Digi968,0" }
>   slave { pcm "hw:DSP" }
>   route_policy duplicate
> }
>
> should work with non-plug definition as well).
>
> -- Giso
>
>
> Carlo Capocasa wrote:
> > Never got it to work...
> >
> > Ivica Ico Bukvic wrote:
> >>> Hi everyone!
> >>>
> >>> I made a quick fix solution to the alsa multicard problem that
> >>> turns up when you have more than one soundcard. In this case, the
> >>> alsa device number is volatile and you have to update your
> >>> QJackCtl config after every boot.
> >>>
> >>> The description is here:
> >>>
> >>> https://help.ubuntu.com/community/UbuntuStudio/MulticardQuickfix
> >>>
> >>> It is on the Ubuntu Wiki, because that is what I use, but the
> >>> instructions should work unchanged for any linux distribution.
> >>>
> >>> Thanks for having a look! Let me know if I can improve something.
> >>>
> >>> Carlo
> >> Doesn't the Alsa's option card numbering work any more?
> >>
> >> Ico

I second that, just look at the output of aplay -l.
in my case:
card 1: UA25 [UA-25]

the in qjackctl or the jack commandline just use hw:UA25
done, no more trouble
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