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Installing SC on Ubuntu 16,04: server failed to start

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Installing SC on Ubuntu 16,04: server failed to start

PULT
Hello,
I am new to supercollider and i have a problem with the installation.
I installed supercollider and i can not start using it because it
allways gives a error message:

init_OSC
empty
compiling class library...
     NumPrimitives = 679
     compiling dir: '/usr/share/SuperCollider/SCClassLibrary'
     compiling dir: '/usr/share/SuperCollider/Extensions'
     pass 1 done
     numentries = 782347 / 10874136 = 0.072
     4979 method selectors, 2184 classes
     method table size 11740984 bytes, big table size 86993088
     Number of Symbols 11504
     Byte Code Size 359694
     compiled 320 files in 0.24 seconds
compile done
Help tree read from cache in 0.0016582012176514 seconds
LID: event loop started
Class tree inited in 0.02 seconds
Welcome to SuperCollider 3.6.6. For help press Ctrl-D.
booting 57110
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2014 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
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
could not initialize audio.
RESULT = 1
ERROR: server failed to start
For advice:
[http://supercollider.sf.net/wiki/index.php/ERROR:_server_failed_to_start]

I checked if there is something running with the taksmanager but
nothing. so the wiki cant help to find the problem. I use Ubuntu 16.04 LTS.

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Re: Installing SC on Ubuntu 16,04: server failed to start

ddw_music
PULT wrote
Hello,
I am new to supercollider and i have a problem with the installation.
I installed supercollider and i can not start using it because it
allways gives a error message:

audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
could not initialize audio.
RESULT = 1
ERROR: server failed to start
First, note the text at the top of the SC Mailing Lists page:

~~
These forums are archives of the SuperCollider Users (sc-users) and SuperCollider Developers (sc-dev) mailing lists.

N.B. You must subscribe to sc-users / sc-dev or sc-users-acl / sc-dev-acl (for non-delivery) in order to post from these forums.

Add an address to sc-users-acl

Add an address to sc-dev-acl

For information on the lists, please see: http://www.beast.bham.ac.uk/research/sc_mailing_lists.shtml
~~

That is: This is not a web forum. It is a web-forum-like interface to a couple of mailing lists. Most people use the mailing lists, and they are not seeing your message for two reasons:

1. You didn't subscribe to sc-users-acl.

2. You posted your message "freestanding" instead of posting under the SuperCollider Users subcategory.

Now, the technical question: It's actually not a SuperCollider-specific question. You will have this problem with any audio application that uses JACK.

Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
could not initialize audio.
This means JACK is trying to access the sound card (hw:0 is almost certainly the built-in interface), but for some reason, it can't. Usually this is because something else (probably PulseAudio) is already using the soundcard.

There are many possible solutions -- searching the web for ways to make JACK and PulseAudio cooperate is the best place to start.

hjh
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