[LAU] Behringer UMC1820 suddenly stopped working with JACK2 (after re-install)

nik at parkellipsen.de nik at parkellipsen.de
Mon May 6 23:18:23 CEST 2019

Chris Caudle wrote on 06.05.2019 23:04:
> On Mon, May 6, 2019 3:24 pm, nik at parkellipsen.de wrote:
> > 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 usually start jack2 like this (works with the other device):
> >
> > jackd -P98 -dalsa -dhw:2 -p512 -n3 -o2 -r44100
> Have you verified the device number? The device number can change between
> reboots even, so definitely could change when reinstalling your OS. 
> Easiest to check using aplay -l to list all ALSA devices, perhaps hw:2 is
> no longer your UMC interface.

Thanks for the quick reply !

Yes, i checked that, so that problem can be ruled out. 


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