I have the aforementioned Z1 card and it works juts fine in Ubuntu 18.04
under pulseaudio. But not via ALSA. Here are some details:
--------
boris@cencerro:~$ aplay -L
default
Playback/recording through the PulseAudio sound server
....
sysdefault:CARD=Z1
Traktor Kontrol Z1, USB Audio
Default Audio Device
....
--------
Testing via "speaker-test -Ddefault -c 2 -t wav" works well. However,
"speaker-test -Dsysdefault:Z1 -c 2 -t wav" produces no sound. It does
run (no errors) but no volume!
I thought that maybe it was muted, so I went to the ALSA mixer but the
mixer says "this sound device does not have any controls". The default
device has controls.
Note that the first test (-Ddefault) must be using the right card, since
I plug in my earphones into the external (Z1) card for testing.
As another tidbit of information, I have also attempted to use this card
with mixxx. Mixxx can detect it just fine, and plays media without any
warnings on the console (when run in the developer mode with extensive
debugging log). However, again, there's no volume.
This has been driving me crazy and is definitely far beyond my knowledge
of the Linux soundsystem. Thank you in advance for any leads.
Boris
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