Hi Felix and Lesik,

> You can investigate a lot already with 'lsusb' and then with 'alsamixer"
>> (from alsa-utils).  Alsamixer is a console program that uses Ncurses for
>> graphics and has some odd keybindings [2] but you may just have to
>> unmute it.

If I connect my Komplete Audio 1 with usb to my laptop:
I get this message:

gfp@Tuxedo ~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 2109:2812 VIA Labs, Inc. VL812 Hub
Bus 003 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 003 Device 004: ID 046d:c077 Logitech, Inc. Mouse
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 2109:0812 VIA Labs, Inc. VL812 Hub

gfp@Tuxedo ~$ alsamixer
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library 
/gnu/store/09z1wim457nxknh5yf2bwnwg84w3w0zq-alsa-plugins-1.2.2-pulseaudio/lib/alsa-lib/libasound_module_ctl_pulse.so 
(/gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6: 
version `GLIBC_2.38' not found (required by 
/gnu/store/50d4baa8q111wbbq00jsmc3g76159lcz-pulseaudio-16.1/lib/pulseaudio/libpulsecommon-16.1.so))
cannot open mixer: Kein passendes Gerät bzw. keine passende Adresse 
gefunden (No suitable device or address found).

That is without installing pipewire.
I installed pipewire etc, but after an sudo guix system reconfigure...
I had no sound at all. I lost what I had, and I didn't get pipewire.
So I had to change to an older generation to get rid of everything I had 
installed.

Approx. 2 years ago Csepp said: Guix home can´t be deleted if installed.
So I didn´t dare to install it.
Secondly I am not on that level to configure my system.

So I can´t use my audio interface at the moment.

Thanks for help

Gottfried



Am 29.11.24 um 18:41 schrieb Felix Lechner:
> Hi Gottfried,
> 
> On Fri, Nov 29 2024, gfp wrote:
> 
>> How did you manage to use it in Guix?
> 
> Lesik will give you a better answer, although "the Komplete Audio 1 is
> class-compliant." [1]
> 
> You can investigate a lot already with 'lsusb' and then with 'alsamixer"
> (from alsa-utils).  Alsamixer is a console program that uses Ncurses for
> graphics and has some odd keybindings [2] but you may just have to
> unmute it.
> 
> My understaning is all modern sound daemons such as PulseAudio or
> Pipewire are built on top of ALSA, which stands for Advanced Linux Sound
> Architecture.
> 
> Please send the songs you will records with your new system!
> 
> Kind regards
> Felix
> 
> [1] https://linuxmusicians.com/viewtopic.php?p=153946&sid=6e8deb756edcb3a4679d7e0a6a6ebd47#p153946
> [2] https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture#Unmute_with_alsamixer

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