Hi, i recently re-installed Arch Linux on my laptop after a disk swap and suddenly JACK2 (non-dbus) doesn't run with my Behringer UMC1820 anymore. I kept the old system up-to-date and it was working perfectly well. Also, I don't remember making any special adjustments to get it up and running. My other cheapo Behringer (UCA202) still works fine, so i assume it's not a general USB audio problem ? The device is still shown in alsamixer, levels can be set. A friend tried it on her Mac and it worked there, so I assume the interface itself is still running. uname -a says: Linux atarashii 5.0.13-arch1-1-ARCH #1 SMP PREEMPT Sun May 5 18:05:41 UTC 2019 x86_64 GNU/Linux I usually start jack2 like this (works with the other device): jackd -P98 -dalsa -dhw:2 -p512 -n3 -o2 -r44100 The error message is: ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 24bit little-endian in 3bytes format ALSA: cannot set channel count to 2 for playback ALSA: cannot configure playback channel Released audio card Audio2 audio_reservation_finish Cannot initialize driver JackServer::Open failed with -1 Failed to open server Has anybody experiences something similar ? I don't have any idea right now ... Best, Niklas _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
