[PD] [PD-dev] problem with PA and Jack on OS X

[Marco Matteo Markidis]

>
> so what was the error message?

I start Jack from JackPilot on OS X, and Jack fails to start, not Pd fails
to connect to Jack.

> so when using Pd with jackd:
> - start jackd (e.g. using qjackctl)
> - then start Pd

Yes I did it properly.

> it seems like you are using the "PA" acronym for different things.
> Pd has a PortAudio backend (s_audio_pa.c), but afaik this does not
> involve any service/daemon/programm which could be refered to with "and
> magically PA starts".

Mmm no. With PA I mean PortAudio exclusively. When I started Pd it froze
and looking at system monitor it stops at pa_send_dacs at some cerror
function call (maybe some pthread init, but I not remember properly).
Just to be clear: I started Pd with -pa flag but when I switch on the DSP
Pd froze and on system monitor I saw that Pd was locked at some error.
With Jack, Jack didn't start directly.

So, what I'm saying is that can be an idea put a red Pd error con parent
window in order that the user can understand that it is a PA error and not
a Pd error.

My solution was to reboot and everything worked properly, in this sense "PA
magically starts".

Marco


2016-06-14 14:58 GMT+02:00 IOhannes m zmoelnig <zmoelnig at iem.at>:

> On 2016-06-14 12:57, Marco Matteo Markidis wrote:
> > Dear list,
> >
> > Sunday I had a gig in Poland. After connect all cables, mixer and sound
> > card I started my Pd patch without problems. When I switched on the DSP
> Pd
> > frozen and I didn't understand really what happens. After a while, I
> > started the system monitor and I saw that in calling PA it stops with an
> > error. I tried to start also Pd with Jack and in this case Jack didn't
> > start properly giving me an visible error message.
> > So I rebooted and magically PA starts.
> >
> > I'm sending you this email just to say that can be a good idea in this
> case
> > to report an error message very visible on Pd parent or something like
> > this, in order to understand that it is a PA error and probably an error
> to
> > access to sound card or something like this.
> >
> > I'm sorry to cannot report a complete log message, but I remember that Pd
> > stops at pa_send_dacs function in s_audio_pa.c file. I hope you can
> > understand that in a real live situation with Wayne Horvitz waiting that
> > you finish your soundcheck it's not a proper occasion to get log message
> > file and stuff like this.
>
> it seems like you are using the "PA" acronym for different things.
> Pd has a PortAudio backend (s_audio_pa.c), but afaik this does not
> involve any service/daemon/programm which could be refered to with "and
> magically PA starts".
>
> there is PulseAudio on linux, which can be used via the PortAudio
> backend, but afaiu you are on osx so i don't think that this applies.
>
> >
> > Best regards and sorry if this mail can be off topic.
> >
>
> i don't think it is off-topic, but probably more interesting for pd-list
> (rather than pd-dev), as it is no more development-specific than any
> other bug and more people could share there experiences.
>
> therefore i'm answering via pd-list...
>
>
> fgasmdr
> IOhannes
>
>
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