Arch Linux

Sweenu

Member

Registered: 2016-12-08

Posts: 27

USB Audio Interface not in /proc/asound/cards if not plugged at boot

Hello,

I have an M-Track plus from M-Audio which works like a charm when plugged at boot but isn't recognize if not.
And when I boot my computer with it, if I unplug it, I'm not able to switch to the internal sound card (Intel) without rebooting.

Is there a way for my computer to switch dynamically?

I'd like to add that, the audio interface does appear in lsusb but not in /proc/asound/cards (if not plugged at boot).

Thank you for your answers,
Sweenu

mich41

Member

Registered: 2012-06-22

Posts: 796

Re: USB Audio Interface not in /proc/asound/cards if not plugged at boot

Boot with the soundcard connected. Disconnect it, connect back. Run dmesg and post the output.

Is there a way for my computer to switch dynamically?

I think PulseAudio can do that. Normally (with bare ALSA drivers) you would need to reconfigure every application separately whenever you want it to play to a different card or change the default with .asoundrc and restart all applications.

Sweenu

Member

Registered: 2016-12-08

Posts: 27

Re: USB Audio Interface not in /proc/asound/cards if not plugged at boot

Thank you! Running dmesg showed me that I had an issue with my alsa-base.conf file but I switched to Pulseaudio and added load-module module-switch-on-connect to my ~/.config/pulse/default.pa file and now everything works perfectly.