Arch Linux

jfk

Member

Registered: 2017-12-11

Posts: 81

ALSA randomly loads controls of external USB card

I have an external USB sound card connected to an Arch lts install with Plasma and Pulse Audio. The card works works fine but it's not always "recognized" at boot. To be precise, when this happens, alsamixer displays the card but when I select it I get

cannot load mixer controls: Invalid argument

I have to unplug/plug the card.

I tried to set udev rules (to match the port with the card) but this hasn't been successful.

I also tried this script

https://alsa.opensrc.org/Udev

but I cannot compile it due to an error at this line

int main(int argc, char **argv)
{
       if (argc == 1) //no parameters passed
        return CreateAlsaMultiCardConfig();
    if (argc != 3)  //wrong number of parameters
        return -1;

Any other idea?

Last edited by jfk (2017-12-13 23:30:07)