[PD] alsa : Invalid value for card

[Nicolas Montgermont]

thanks for fast and precise answer
editing /lib/modprobe.d/aliases.conf
and changing:
options snd-usb-audio index=-2
to
options snd-usb-audio index=0
make the card number to 0 and works in pd with alsa.
n

http://www.nimon.org

Le 06/12/2016 à 10:24, IOhannes m zmoelnig a écrit :
> On 2016-12-06 10:13, Nicolas Montgermont via Pd-list wrote:
>> I can't manage to make it work in pd,
>> it appears in the menu, but when I launch dsp, it shows:
>> ALSA lib pcm_hw.c:1667:(_snd_pcm_hw_open) Invalid value for card
>> ALSA input error (snd_pcm_open): No such file or directory
>> ... same for output
>> what should I do to use it in pd?
> iirc, there's a problem if the cards are not in consecuritve order,
> starting with 0.
>
> e.g. my devices are
> $ cat /proc/asound/cards
>  0 [DSP            ]: H-DSP - Hammerfall DSP
>                       RME Hammerfall HDSP 9652 at 0xf3100000, irq 22
>  1 [MID            ]: HDA-Intel - HDA Intel MID
>                       HDA Intel MID at 0xf3420000 irq 33
>  2 [NVidia         ]: HDA-Intel - HDA NVidia
>                       HDA NVidia at 0xf3000000 irq 17
> $
> which means i have 3 devices with ids 0,1&2.
>
> if however, you have something like
> $ cat /proc/asound/cards
>  1 [NVidia         ]: HDA-Intel - HDA NVidia
>                       HDA NVidia at 0xf3000000 irq 17
> $
>
> then you are missing the device #0, and Pd gets into trouble.
>
>
> a couple of workarounds:
> - use jack to talk with the soundcard, so Pd doesn't need to know
> - make sure that the card numbers start with 0 (and are consecutive, in
> case you want to access a not-first card); this most likely involves
> tweaking some kernel module parameters (for the soundcards to be
> loaded), and maybe some udev rules.
>
> fgjmasdr
> IOhannes
>
>
>
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