UbSt 9,10........Jack?

Thu Nov 5 02:34:47 GMT 2009

Ricardo Lameiro wrote:
> So, you need to have rt rights. Follow the info in this webpage
> https://help.ubuntu.com/community/UbuntuStudioPreparation
>
> You will need to add your use to an audio group and give to that group 
> RT privileges.
>
> 2009/11/5 Tommy Hjalmarsson <tommy.h at bredband.net 
> <mailto:tommy.h at bredband.net>>
>
>     Eric Hedekar wrote:
>>     On Wed, Nov 4, 2009 at 4:20 PM, Tommy Hjalmarsson
>>     <tommy.h at bredband.net <mailto:tommy.h at bredband.net>> wrote:
>>
>>         I have installed UbSt 9,10 64 bit. And I can start Jack and
>>         Ardour if I
>>         have the starter for them on my desktop and write gksudo (and
>>         I don't
>>         need to write my root password, thats strange) in
>>         preferences/commando.
>>         The shorter version, Jack work when I'm are "root", and it is
>>         honky
>>         dory, it's working anyway.
>>
>>         But...................
>>
>>         I can't however not connect as a "client" to the Jack server
>>         with Jack
>>         as "user", only as "root". The error message points on that
>>         Jack can't
>>         connect as a client. And this last line (not in red color):
>>         /(<unknown>:13353): Gtk-WARNING **: Theme directory
>>         scalable/animations
>>         of theme Ny_hjalle has no size field/
>>
>>
>>         hjalle=me/user. I don't get the error message as root, *and I
>>         dont know
>>         if it is a big error*. If I somehow have made a strange user
>>         "Ny_hjalle"  for the sound server, in what config file can i
>>         find it?
>>         (I cant find Ny_hjalle in my user settings)
>>
>>
>>         Must I make a Jack user group with "user rights " or....what?
>>
>>         9,10 sounds better than 9.04 however on my laptop.....but
>>         only as root:)
>>
>>         /Tommy Hjalmarsson
>>
>>
>>     Tommy, it's not the last error message that should be looked at,
>>     but rather the first error message.  If you can't determine which
>>     error message is first, copy and paste the entire output of the
>>     messages windown on an attempted jack start (not using root).  If
>>     it's a huge output (may be if you have verbose messages turned
>>     on) you may want to paste it in a pastebin like
>>     http://pastebin.ubuntu.com then post the link here.
>>
>>     -Eric
>     Ok here is the text:/
>     /
>
>     /02:23:24.598 Patchbay deactivated./
>
>     /02:23:24.598 Statistics reset./
>
>     /02:23:24.624 ALSA connection graph change./
>
>     /02:23:24.819 ALSA connection change./
>
>     /02:23:32.753 Startup script.../
>
>     /02:23:32.755 artsshell -q terminate/
>
>     /sh: artsshell: not found/
>
>     /02:23:33.159 Startup script terminated with exit status=32512./
>
>     /02:23:33.160 JACK is starting.../
>
>     /02:23:33.161 /usr/bin/jackd -R -dalsa -dhw:0 -r44100 -p1024 -n3/
>
>     /no message buffer overruns/
>
>     /jackd 0.116.1/
>
>     /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
>     -647842064, from thread -647842064] (1: Operation not permitted)/
>
>     /cannot create engine/
>
>     /02:23:33.184 JACK was started with PID=15696./
>
>     /02:23:33.188 JACK was stopped successfully./
>
>     /02:23:33.189 Post-shutdown script.../
>
>     /02:23:33.190 killall jackd/
>
>     /jackd: ingen process hittades/
>
>     /02:23:33.604 Post-shutdown script terminated with exit status=256./
>
>     /02:23:35.261 Could not connect to JACK server as client. -
>     Overall operation failed. - Unable to connect to server. Please
>     check the messages window for more info./
>
>     /(<unknown>:15688): Gtk-WARNING **: Theme directory
>     scalable/animations of theme Ny_hjalle has no size field/
>
>     *End*
>
>
>     *And this i my problem, I didn't see it earlier:*
>     /cannot use real-time scheduling (FIFO at priority 10) [for thread
>     -647842064, from thread -647842064] (1: Operation not permitted)
>     /*But not as root*
>
>
>     This is a Ubuntu 9,10 64 bit installtion with Ubuntu Studio 64 bit
>     package and rt kernel installed with Synaptik. So /Elliott
>     Barcikowski/ guess that I don't have the right to use realtime
>     kernel as user, only as root is probably right .So the problem
>     isn't Jack.
>
>
>
>     --
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>
>
>
>
> -- 
> Fagote / Contrafagote
> Bassoon / Contra-bassoon
> http://myspace.com/ricardolameiro
*Solved*, it's working now as user.

With this:

/sudo su -c 'echo @audio - rtprio 99 >> /etc/security/limits.conf'
sudo su -c 'echo @audio - nice -10 >> /etc/security/limits.conf'
sudo su -c 'echo @audio - memlock unlimited >> /etc/security/limits.conf'

I was already us'er for audio.
/
>From here:
https://help.ubuntu.com/community/UbuntuStudioPreparation.

Thank you.
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