On Tue, Oct 25, 2016 at 9:20 AM, John Rigg <j@jrigg.co.uk> wrote:
On Mon, Oct 24, 2016 at 08:45:24PM +0200, Alexandros Drymonitis wrote:
> 20:34:37.681 /usr/bin/jackd -dalsa -r48000 -p1024 -n2 -Xraw -D -Chw:USB
> -Phw:USB -i2 -o4

What happens if you leave out the -i2 and -o4 options?
The same. Here are the messages when using the default Channels I/O:

10:04:03.999 Patchbay deactivated.

10:04:04.003 Statistics reset.

10:04:04.117 ALSA connection change.

connect(2) call to /tmp/jack-1000/default/jack_0 failed (err=No such file or directory)

attempt to connect to server failed

10:04:04.151 ALSA connection graph change.

10:04:21.737 JACK is starting...

10:04:21.738 /usr/bin/jackd -dalsa -r48000 -p1024 -n2 -Xraw -D -Chw:USB -Phw:USB

connect(2) call to /tmp/jack-1000/default/jack_0 failed (err=No such file or directory)

attempt to connect to server failed

jackd 0.124.1

Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others.

jackd comes with ABSOLUTELY NO WARRANTY

This is free software, and you are welcome to redistribute it

under certain conditions; see the file COPYING for details

10:04:21.753 JACK was started with PID=3690.

JACK compiled with System V SHM support.

loading driver ..

apparent rate = 48000

creating alsa driver ... hw:USB|hw:USB|1024|2|48000|0|0|nomon|swmeter|-|32bit

configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods

ALSA: final selected sample format for capture: 32bit integer little-endian

ALSA: use 2 periods for capture

10:04:23.820 Server configuration saved to "/home/odroid/.jackdrc".

10:04:23.822 Statistics reset.

10:04:23.929 Client activated.

10:04:23.933 Buffer size change (0).

ALSA: final selected sample format for playback: 32bit integer little-endian

ALSA: use 2 periods for playback

10:04:24.721 Buffer size change (1024).

10:04:24.722 JACK connection graph change.

10:04:24.733 JACK connection change.

10:04:25.674 Shutdown notification.

10:04:25.682 Client deactivated.

10:04:25.684 JACK is being forced...

cannot read server event (Success)

cannot continue execution of the processing graph (Bad file descriptor)

graph error - calling shutdown handler

cannot send request type 7 to server

cannot read result for request type 7 from server (Broken pipe)

cannot send request type 7 to server

cannot read result for request type 7 from server (Broken pipe)

10:04:25.692 JACK has crashed.

10:04:25.885 JACK was stopped