On Sat, 8 Jul 2017 19:11:31 +0300, alex wrote:
 jackd -dalsa -dhw:1 -i2 -o4 -p512 -r48000 
Hi,
run the command from command line, perhaps you get something like
"ALSA: cannot set channel count to 2 for capture"
and/or
"ALSA: cannot set channel count to 4 for playback"
Regards,
Ralf
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