[PlanetCCRMA] Can get jackd to run

Sat Feb 18 12:40:07 2006

On Saturday 18 February 2006 20:35, rick parker wrote:
> --- Nigel Henry <cave.dnb@tiscali.fr> wrote:
> > On Saturday 18 February 2006 06:38, rick parker
> >
> > wrote:
> > > I'm using an M-Audio 1010, which I do get output
> >
> > from
> >
> > > and in the envy24control I can see input levels
> >
> > on, so
> >
> > > that seems to be working.  With Frame/Period 1024
> >
> > it
> >
> > > still just dies about 5 seconds after starting.
> > > I don't see any messages that say "xrun" when I do
> > > this (I'm just looking in the jack mesaage window,
> > > don't know where else to look).
> > > When I uncheck Realtime, it seems to stay running
> > > though, I don't really know what it's for but I'm
> > > thinking it's probably important. Truthfully, I
> >
> > don't
> >
> > > even know what I'm supposed to do it jack to use
> >
> > it
> >
> > > once it's running...
> > > I did read the FAQ you listed, and I'll take a
> >
> > look at
> >
> > > the sourceforge list as well in the meantime..
> > >
> > > Thanks.
> >
> > Hi Nick. The first thing I notice from your first
> > post was that the Midi
> > patchbay was not available. The Midi patchbay has
> > nothing to do with Jack,
> > but is a facility to enable Midi connections in
> > Qjackctl. Run /sbin/lsmod on
> > the command line as user. The module you're looking
> > for is snd-seq-midi,
> > which you will no doubt see is missing. To force
> > loading of this, again on
> > the command line, this time as root, type the
> > following.
> > /sbin/chkconfig alsasound on .  The snd-seq-midi
> > module should now be loaded
> > each time you boot up.
>
> The sound card I'm using, the M-Audio Delta 1010,
> doesn't have midi, should I still follow these
> instructions?

Hi Rick. Sorry about messing with your name. I think my mind was on Dr Nick 
Riviera, and again my eyes arn't so good. I would do the snd-seq-midi stuff, 
as, for instance. If you have a midi keyboard and want to link it to 
ZynAddSubFx synth
>
> > For realtime to work you need the packages "rtirq"
> > and "rtload" and the kernel
> > thats designed to use them. To check if you have
> > those 2 packages.
> > rpm -q rtirq
> > rpm -q rtload
>
> Both seem to be there, and I'm using the low-latency
> kernel:
> # rpm -q rtirq
> rtirq-20050415-1.rhfc3.ccrma
>
> # rpm -q rtload
> rtload-0.0.2-1.rhfc3.ccrma
>
> # uname -r
> 2.6.11-0.3.rdt.rhfc3.ccrma

I'm using the same kernel, and there are no problems with realtime. On FC3, 
and Qjackctl, I have the following.
Realtime checked
Priority 60
Frames/Period 1024
Sample Rate 48000
Periods/Buffer 2
Port Maximum 128
Latency is showing as 42.7 msec. Really bad but no noticeable delay from 
keyboard to synth.  Nigel.
>
> I did try running jackd and jackstart both (since I
> didn't know the difference and neither was working),
> but I guess I'll just stick with jackd from now on.
>
> Thanks.


>
> > If they are not there, there are a couple of
> > packages to install as follows.
> > apt-get update
> > apt-get install planetccrma-core
> > apt-get install planetccrma-core-edge
> > These are low latency kernels, and with one of the
> > packages you get some
> > extras. "rtirq" , "rtload" , and a couple of Alsa
> > packages.
> >
> > You should now have more kernel options on Grubs
> > menu, and realtime should now
> > work. Make sure in Qjackctl's setup that the command
> > to start Jack is jackd,
> > and not jackstart, which is specific for 2.4
> > kernels.
> >
> > See how you get on. Nigel.
> >
> > > --- David Slimp <rock808@gmail.com> wrote:
> > > > Not sure I can help much with this one...
> > > >
> > > > What sound card are you using?
> > > >
> > > > If that is a 500MHz machine... is it possible
> >
> > your
> >
> > > > settings
> > > > are too demanding to keep up?  (are you seeing
> >
> > xrun
> >
> > > > messages?)
> > > > Try a lower sample rate - not 48000.
> > > > Try a higher Frames/Period - not 512.
> > > >
> > > > Have you looked at the jack
> >
> > website/FAQ/HowTo/docs:
> > > > http://jackit.sourceforge.net/docs/
> > > >
> > > > Have you posted/searched the jack mailing list?
>
> http://sourceforge.net/mailarchive/forum.php?forum_id=3040
>
> > > > ... not trying to avoid your question, but more
> > > > people on
> > > > the jack site can probably answer jack questions
> > > > faster, and
> > > > might have more experience with how to debug
> > > > problems.
> > > > (good to ask/look in both places)
> > > >
> > > > david
> > > >
> > > >
> > > > On 2/17/06, rick parker <rickparkerz@yahoo.com>
> > > >
> > > > wrote:
> > > > > First, forgive me if I'm just totally doing
> > > >
> > > > something
> > > >
> > > > > wrong, I'm pretty new at this...
> > > > > Ok, so I have an older computer (pIII 500) and
> > > >
> > > > wanted
> > > >
> > > > > to try Ardour, so to start fresh I wiped it
> >
> > and
> >
> > > > > installed Fedora Core 3 (from the links on the
> > > >
> > > > Planet
> > > >
> > > > > CCRMA website).
> > > > > Went through the Feddora install ok, then
> > > >
> > > > installed
> > > >
> > > > > the CCRMA kernel and Alsa drivers and booted
> >
> > into
> >
> > > > it.
> > > >
> > > > > Seemed to run fine so I ran the apt-get
> >
> > install
> >
> > > > > audio-apps and installed of the audio apps.
> > > > > Now my problem, when I try to run qjackctl
> > > >
> > > > (running
> > > >
> > > > > with the default settings since I didn't
> >
> > really
> >
> > > > know
> > > >
> > > > > what to set it to), it starts and then soon
> >
> > dies.
> >
> > > > > Here's what the ouput says, if anyone can tell
> >
> > me
> >
> > > > what
> > > >
> > > > > I'm doing wrong I'd be grateful...
> > > > > 21:12:25.212 Patchbay deactivated.
> > > > > 21:12:26.469 Statistics reset.
> > > > > 21:12:26.585 Could not open ALSA sequencer as
> >
> > a
> >
> > > > > client. MIDI patchbay will be not available.
> > > > > ALSA lib seq_hw.c:451:(snd_seq_hw_open) open
> > > > > /dev/snd/seq failed: No such file or directory
> > > > > 21:12:40.548 Patchbay deactivated.
> > > > > 21:13:01.674 Startup script...
> > > > > 21:13:01.675 artsshell -q terminate
> > > > > 21:13:02.495 Startup script terminated with
> >
> > exit
> >
> > > > > status=256.
> > > > > 21:13:02.500 JACK is starting...
> > > > > 21:13:02.503 /usr/bin/jackd -R -dalsa -dhw:0
> > > >
> > > > -r48000
> > > >
> > > > > -p512 -n2
> > > > > 21:13:02.530 JACK was started with PID=5119
> > > >
> > > > (0x13ff).
> > > >
> > > > > 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 = 48000
> > > > > creating alsa driver ...
> >
> > hw:0|hw:0|512|2|48000|0|0|nomon|swmeter|-|32bit
> >
> > > > > control device hw:0
> > > > > configuring for 48000Hz, period = 512 frames,
> > > >
> > > > buffer =
> > > >
> > > > > 2 periods
> > > > > nperiods = 2 for capture
> > > > > nperiods = 2 for playback
> > > > > 21:13:04.562 Server configuration saved to
> > > > > "/home/rickparkerz/.jackdrc".
> > > > > 21:13:04.566 Statistics reset.
> > > > > 21:13:04.906 Client activated.
> > > > > 21:13:04.913 Audio connection change.
> > > > > 21:13:04.923 Audio connection graph change.
> > > > > jackd watchdog: timeout - killing jackd
> > > > > zombified - calling shutdown handler
>
> === message truncated ===
>
>
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