[PlanetCCRMA] Re: JACK configuration

[Bob Bailey]

Ron,

Thanks.  Actually I am using the 2.6 kernels.  I had the same problem in
both the latest stable release and a couple of the edge kernels.  The
issue seems to be related to the realtime patch.  I can start jackd, but
not jackd-realtime (JACK Connection Kit gives 3 options in 'Server
Path').

How can I check to see that I have the realtime module loaded at boot
and running?  I did find the following information when I checked
'serviceconf':

Realtime kernel module is loaded, current parameters are:
any=1; gid=-1; mlock=1

-bb

On Sat, 2005-04-09 at 08:24, R Parker wrote:

> --- Bob Bailey <bob at digisonus.com> wrote:
> > Mark,
> > 
> > I had enabled the alsa sound start up script with
> > '/sbin/chkconfig
> > alsasound on' 
> > 
> > cat /proc/asound/version:
> > 
> > Advanced Linux Sound Architecture Driver Version
> > 1.0.9rc1.
> > Compiled on Mar 22 2005 for kernel
> > 2.6.10-2.1.11.rhfc2.ccrma.
> > 
> > cat /proc/asound/cards:
> > 
> > 0 [M410        ]: ICE1712 - M Audio Delta 410
> >                        M Audio Delta 410 at 0xd000,
> > irq 10
> > 
> > Starting JACK from the terminal worked using 'jackd
> > -d alsa -d hw'. 
> > When I look into the settings for qjackctl it is
> > using 'jackd-realtime'
> > as the Server Path.  Could that be why it couldn't
> > find the JACK server
> > even though I have the the Realtime kernel module
> > loaded?
> 
> All apps must be started by the same user. I assume
> this is a 2.4 kernel. If correct, use jackstart and
> start qjackctl with your normal user account and
> follow suit for all other applications.
> 
> ron
> 
> > RESULT:
> > jackd 0.99.36
> > Copyright 2001-2003 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.
> > loading driver ..
> > creating alsa driver ...
> > hw|hw|1024|2|48000|0|0|nomon|swmeter|-|32bit
> > configuring for 48000Hz, period - 1024 frames,
> > buffer - 2 periods
> > nperiods - 2 for capture
> > nperiods - 2 for playback
> > 
> > MusE started fine.  Now I'll reboot and try this
> > with an Edge kernel. 
> > I'm trying to get a system to the point that a non
> > technical user can
> > use it, preferably with no need to use command lines
> > (ie. system used
> > only as DAW, boots into realtime kernel, alsa
> > started and running
> > indefinitely, JACK control Kit configured with
> > pre-patch for sound card,
> > apps pre-configed, etc..)  
> > 
> > If you see anything else... it is much appreciated. 
> > 
> > 
> > Bob
> > -- 
> > 
> > digi|SONUS
> > p:: 877.769.3173
> > e:: info at digisonus.com
> > 
> > 
> > On Fri, 2005-04-08 at 21:51, Mark Knecht wrote:
> > 
> > > Bob,
> > >    Is Alsa running? cat /proc/asound/version   and
> >   cat /proc/asound/cards
> > > 
> > >    Try a couple of simple things first:
> > > 
> > > (as a user)
> > > jackd -d alsa -d hw
> > > 
> > > Does it work?
> > > 
> > > If it does then man jackd and look at the options.
> > If it doesn't we'll
> > > look at why.
> > > 
> > > Interesting options (from memory...)
> > > 
> > > jackd -R -d alsa -r 44100 -n 2 -p 256 -d hw
> > > 
> > > [mark at Godzilla mark]$ jackd -R -d alsa -r 44100 -n
> > 2 -p 256 -d hw
> > > jackd 0.99.36
> > > Copyright 2001-2003 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.
> > > loading driver ..
> > > apparent rate = 44100
> > > creating alsa driver ...
> > hw|hw|256|2|44100|0|0|nomon|swmeter|-|32bit
> > > configuring for 44100Hz, period = 256 frames,
> > buffer = 2 periods
> > > nperiods = 2 for capture
> > > nperiods = 2 for playback
> > > 
> > > 
> > > Interesting. I'm not seeing realtime getting
> > enabled. PlanetEdge kernel.
> > > 
> > > Anyway, give it a try.
> > > 
> > > Cheers,
> > > Mark
> > 
> > 
> > 
> 
> 
> 		
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-- 
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