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-   -   JACK issues with audio software (https://www.linuxquestions.org/questions/linux-software-2/jack-issues-with-audio-software-607127/)

Doug52392 12-16-2007 11:39 AM

JACK issues with audio software
 
Hi, I am getting errors with zynAddSubFx and another audio program. When I try to run it, I get these error messages:
Quote:

lash_open_socket: could not look up host 'localhost': Servname not supported for ai_socktype
lash_open_socket: could not connect to host 'localhost', service '14541'
lash_comm_connect_to_server: could not create server connection
lash_init: could not connect to server 'localhost' - disabling LASH
lash_init: LASH_START_SERVER unset, not attempting to start server automatically

ZynAddSubFX - Copyright (c) 2002-2005 Nasca Octavian Paul
Compiled: Mar 14 2007 22:15:48
This program is free software (GNU GPL v.2) and
it comes with ABSOLUTELY NO WARRANTY.

Try 'zynaddsubfx --help' for command-line options.
Sound Buffer Size = 256 samples
Internal latency = 5.8 ms
ADsynth Oscil.Size = 512 samples
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]
JACK tmpdir identified as [/dev/shm]

ERROR: Cannot make a jack client (possible reasons: JACK server is not running or jackd is launched by root and zynaddsubfx by another user.).
I Googled around and found that this can be caused by the the JACK server not running, so I downlaoded Qjackctl, but when I clicked the Start button, I got this error:
Quote:

12:37:53.367 Patchbay deactivated.
12:37:53.372 Statistics reset.
JACK tmpdir identified as [/dev/shm]
12:37:53.433 MIDI connection graph change.
12:37:53.579 MIDI connection change.
12:38:10.190 Startup script...
12:38:10.191 artsshell -q terminate
JACK tmpdir identified as [/dev/shm]
12:38:10.421 Startup script terminated with exit status=256.
12:38:10.421 JACK is starting...
12:38:10.421 jackd -R -dalsa -dhw:0 -r48000 -p1024 -n2
12:38:10.422 JACK was started with PID=31770 (0x7c1a).
jackd 0.103.0
Copyright 2001-2005 Paul Davis 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
JACK compiled with System V SHM support.
cannot use real-time scheduling (FIFO at priority 10) [for thread -1208293696, from thread -1208293696] (1: Operation not permitted)
cannot create engine
12:38:10.429 JACK was stopped successfully.
12:38:12.476 Could not connect to JACK server as client. Please check the messages window for more info.
JACK tmpdir identified as [/dev/shm]
Why won't this work? I have a Gateway GT5428 computer, and Fedora 7 Linux.

comprookie2000 12-25-2007 04:47 PM

is hw:0 the midi port?
you may be able to use it without jack;
from the doc's
If you use ALSA, don't forget to connect the midi output device (or program) with ZynAddSubFX (you can use "acconect" or "alsa-patch-bay" to do this)

winfried 08-29-2009 06:38 AM

Quote:

Originally Posted by comprookie2000 (Post 3001374)
is hw:0 the midi port?
you may be able to use it without jack;
from the doc's
If you use ALSA, don't forget to connect the midi output device (or program) with ZynAddSubFX (you can use "acconect" or "alsa-patch-bay" to do this)

How do I know, which is the midi port?

Winfried


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