jackd server refuses to play under SuSE 10.0

Hallo friends,

I've been trying to get the jackd sound server to work under SuSE 10.0:

- kill some processes:
killall -9 artsd
killall -9 jackd

- Start the sound server:
jackd -vv -d alsa -d hw:0 & 

- Send a sine-wave to test it
ecasound -f:32,1,44100 -i null -o jack_alsa -b:1024 -el:sine_fcac,440,1   

-> Silence

- Start hydrogen, select a demo, play it

-> Silence

- Start zynaddsubfx &

-> Silence

My Tecra S3 can play everything through alsa and oss. So the sound system seems to work in principle.


Has anyone gotten jackd to play under SuSE 10.0 ?

Please help,

Cheers,

Wolfgang