[Done] jamulus instalation on Mageia 7

[Done] jamulus instalation on Mageia 7

Postby JJF1 » May 6th, '20, 15:49

Anybody had experience in installing jamulus application on Mageia 7?
Trying to run jamulus after supposedly successful installation I received the following error

Code: Select all
The Jack server is not running. This software requires a Jack server to run. Normally if the Jack server is not running this software will automatically start the Jack server. It seems that this auto start has not worked. Try to start the Jack server manually.


I than installed Qjack (as suggested "somewhere") and received the following error:
Code: Select all
 Could not connect to JACK server as client.
- Overall operation failed.
- Unable to connect to server.
Please check the messages window for more info.
 


The Message info reported the following:
Code: Select all
       16:41:44.135 Statistics reset.
16:41:44.146 JACK is starting...
16:41:44.147 /usr/bin/jackd -dalsa -dhw:0 -r48000 -p1024 -n2
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot create RT messagebuffer thread: Operation not permitted (1)
Retrying messagebuffer thread without RT scheduling
Messagebuffer not realtime; consider enabling RT scheduling for user
no message buffer overruns
Cannot create RT messagebuffer thread: Operation not permitted (1)
Retrying messagebuffer thread without RT scheduling
Messagebuffer not realtime; consider enabling RT scheduling for user
no message buffer overruns
Cannot create RT messagebuffer thread: Operation not permitted (1)
Retrying messagebuffer thread without RT scheduling
Messagebuffer not realtime; consider enabling RT scheduling for user
no message buffer overruns
jackdmp 1.9.12
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
Copyright 2016-2017 Filipe Coelho.
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"
Cannot lock down 82280346 byte memory area (Cannot allocate memory)
16:41:44.232 JACK was started with PID=4470.
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
Released audio card Audio0
audio_reservation_finish
Cannot initialize driver
JackServer::Open failed with -1
Failed to open server
16:41:44.290 JACK was stopped
qjackctlJackGraph::clearItems()
16:41:46.362 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock

 



I'll appreciate any clue
Last edited by JJF1 on May 16th, '20, 19:38, edited 2 times in total.
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Re: jamulus instalation on Mageia 7

Postby doktor5000 » May 6th, '20, 17:37

FWIW, do you actually understand what a jack server is?
Also, the message info that you posted, that is from qjackctl or from jamulus ?
And did you start a jack server from qjackctl before trying to connect to that from jamulus ?
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Re: jamulus instalation on Mageia 7

Postby JJF1 » May 6th, '20, 19:07

I do not know what exactly are the relationship between jamulus and jack.
However running jamulus after "successful installation I got the message that jamulus needs the jack server in order to run .
I also noticed that various jack modules were installed by Mageia as part of various audio / sound utilities.

The 1st message was jamulus's
The 2nd message received when trying to run Qjackctl which directed me to the last message


The bottom line is how to run the Jack server ?
Tks

JJF1
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Re: jamulus instalation on Mageia 7

Postby doktor5000 » May 6th, '20, 22:08

JJF1 wrote:jamulus needs the jack server in order to run


Exactly, and jack audio server should be running before you start jamulus.

JJF1 wrote:The bottom line is how to run the Jack server ?

E.g. with the big start button in qjackctl ? Afterwards you can click the graph button in qjackctl, and you'll see a graphical map of the jack input and output streams,
and if you run jamulus then you'll see it pop up in that graph.
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Re: jamulus instalation on Mageia 7

Postby JJF1 » May 7th, '20, 09:22

Here is the problem
When I run Qjackctl
1st window displayed is the "jack Audio connection Kit" . Apparently I can press "start" or any other button , but, even before any action I get the
2nd window with "Error - JACK ....." after which the
3rd windows "Masage / Status - JACK Audio Connectio Kit" pops up

Any clue??

Tks JJF1
Attachments
Qjackctl-error.png
Qjackctl windows
Qjackctl-error.png (409.72 KiB) Viewed 437 times
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Re: jamulus instalation on Mageia 7

Postby doktor5000 » May 7th, '20, 22:29

Sorry, I can't reproduce. Even with some audio already running, after starting qjackctl, I press start and it will launch jack server.

Did you maybe change any of the settings in qjackctl ? You could try to remove ~/.config/rncbc.org/QjackCtl.conf and ~/.jackdrc and then try again.

You could also try this: http://people.uleth.ca/~daniel.odonnell ... ackctl#how
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Re: jamulus instalation on Mageia 7

Postby vmunich » May 15th, '20, 23:18

MAy I ask JJF1 if he finally managed to get jamulus to work under Mageia ???
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Re: jamulus instalation on Mageia 7

Postby JJF1 » May 16th, '20, 19:38

I managed to get jamulus to run, only after I killed pulseaudio. I have, alwayes , to kill PulseAudio first before I can run Jamulus.
There are other issues that makes Linux Jamulus unusable so run in my configuration
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