Audio driver (jackdmp) error on OS X

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Posts: 3
Joined: Sun Feb 17, 2008 1:18 am

Audio driver (jackdmp) error on OS X

Post by kiwiplant » Sun Feb 17, 2008 1:29 am


I am trying to run linuxsampler for the first time ever and am using
OS X 10.5.2, JackOSX.0.76, and linuxsampler_20080107

I'm getting the following audio driver error (see below).
Ok up to step 4.2 in
It doesn't want to create an audio device.
JackPilot shows that is it still running ("Stop" button is visible)
Any ideas what to do ?


messages in linuxsampler
jackdmp 0.691
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2007 Grame.
jackdmp 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
LinuxSampler 0.5.1
Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck
Copyright (C) 2005-2007 Christian Schoenebeck
Detected features: MMX SSE SSE2
Creating Sampler...OK
Registered sampler engines: 'GIG'
Registered MIDI input drivers: COREMIDI
Registered audio output drivers: JACK
Loading instrument editor plugins...OK
Registered instrument editors:
Starting LSCP network server (
LinuxSampler initialization completed. :-)

StartNotification name = default
Reading Preferences fInputChannels: 2 fOutputChannels: 2 fAutoConnect: 1
Reading Preferences fDefaultInput: 0 fDefaultOutput: 0 fAutoConnect: 0
Reading Preferences debug: 0
Initialize inSelf = 291 name = jackdmp
Error calling AudioUnitSetProperty - kAudioOutputUnitProperty_CurrentDevice
Cannot initialize driver
Cannot start server... exit

LSCPServer: Client connection established on socket:4.
LSCPServer: Client connection established on socket:5.
ConnectPort: can't find mach server port name = jackdmp_entry_default err = unknown error code
Cannot connect to server Mach port
jack server is not running or cannot be started
Seems Jack server not running.

qsampler has these messages
19:02:39.522 Client connecting...
19:02:39.523 Client receive timeout is set to 10000 msec.
19:02:39.524 Client connected.
19:02:39.532 New session: "Untitled1".
19:32:04.862 New Audio device lscp_create_audio_device: Seems Jack server not running. (errno=100)
19:32:04.865 New Audio device Could not create device. Sorry.

Posts: 5
Joined: Sat Jan 26, 2008 1:12 pm

Re: Audio driver (jackdmp) error on OS X

Post by sletz » Mon Feb 18, 2008 2:45 pm

I suggest that you carefully read JackOSX documentation especially the part concerning "Aggregate devices". You should try to setup jack outside of any use with LS, that is :

- configure audio device for your machine (especially if you are using a Mac Intel machine)

- try to use standard applications like iTunes or Quicktime with jack

- when this is running, try using LS

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