I just got a new USB Audio card for my Lynx Aurora 8. So far, I’ve tried to run it in Linux Mint 20 with no luck… I can see it and it does show up in some advanced settings, but configuring it is beyond me.
I have verified that it works with Windows.
AlsaMixer v1.2.2 sees it but gives me a screen that says “This sound device does not have any controls.”
So far, I’ve modified the /etc/modprobe.d/alsa-base.conf file by commenting out the options snd-usb-audio index=-2 code after following this guide. I still haven’t set device ID in the file.
A friend of mine has an Aurora 16 + LT-USB card. Have you tried updating the firmware of the LT-USB on your windows machine/partition? Beyond that possibility, someone else would have to chime in…
From your posts it is not clear what you did try. I am using Linux Mint 20 (and I do not see that your question is related to Ardour). If you right-click the speaker in the tray, sound preferences, output tab, choose a device for sound output: Can you select your sound card? (Make sure that Jack is not running)
I can get audio out of the headphone output from my motherboard. I can see Line Out built in audio and Digital Output built in audio in the sound tab. My card doesn’t show up as a device in Linux Mint sound settings. It does show up in Alsa Mixer though. My question is related to Ardour because I can’t use it if I can’t configure the sound card.
Try to get sound out of it from terminal with a command like this:
aplay -D plughw:1 somefile.wav
where somefile.wav is any .wav file on your machine.
You can also try accessing it with qjackctl - you should specify the I/O channel count as 8 (Setup->Settings->Advanced->Channel I/O), that sometimes help. This is a better way to test multichannel hardware, system settings (Pulseaudio) sometimes handle multichannel cards badly out of the box.
It would be really nice to have another high end converter functional on Linux (besides Merging and Mytek) and the fact that it is shown in /proc/asound/cards is a good sign. I hope you can work it out!
dave@dave-System-Product-Name:~/Downloads$ aplay -D plughw:0 song.wav
Playing WAVE ‘song.wav’ : Signed 24 bit Little Endian in 3bytes, Rate 44100 Hz, Stereo
ALSA lib pcm_params.c:2226:(snd1_pcm_hw_refine_slave) Slave PCM not usable
aplay: set_params:1314: Broken configuration for this PCM: no configurations available
dave@dave-System-Product-Name:~/Downloads$ aplay -D plughw:0,0 song.wav
Playing WAVE ‘song.wav’ : Signed 24 bit Little Endian in 3bytes, Rate 44100 Hz, Stereo
ALSA lib pcm_params.c:2226:(snd1_pcm_hw_refine_slave) Slave PCM not usable
aplay: set_params:1314: Broken configuration for this PCM: no configurations available
dave@dave-System-Product-Name:~/Downloads$ aplay -D plughw:0,0 song.wav
Playing WAVE ‘song.wav’ : Signed 24 bit Little Endian in 3bytes, Rate 44100 Hz, Stereo
ALSA lib pcm_params.c:2226:(snd1_pcm_hw_refine_slave) Slave PCM not usable
aplay: set_params:1314: Broken configuration for this PCM: no configurations available
dave@dave-System-Product-Name:~/Downloads$ aplay -D hw:0,0 song.wav
Playing WAVE ‘song.wav’ : Signed 24 bit Little Endian in 3bytes, Rate 44100 Hz, Stereo
aplay: set_params:1314: Broken configuration for this PCM: no configurations available