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@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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