[PD] Freezes with Pd-Extended and Jack

[Roman Haefeli]

Hi all

Johnny-come-lately I am . . .

I've experienced this problem since 0.43 (vanilla and extended), I
believe, but I haven't really investigated it, because it didn't happen
that often and I wasn't able to reliably reproduce it. Now I figured out
a way to reliably reproduce it. It seems the likeliness is related to
jackd's latency settings. The shorter the latency, the likelier is pd
going to freeze. With a setting of 128 frames/period and 2
periods/buffer, I can reliably freeze pd by turning DSP off and on. 

The problem seems related to the fact that switching DSP also switches
the jack client on and off. I think the preferred way would be to be
able to switch DSP on/off independently from switching audio back-end
on/off.

@Miller
Are you still planning to seperate dsp switching from audio backe-end
switching for 0.44?

Roman



On Mit, 2012-11-21 at 20:35 -0200, Esteban Viveros wrote:
> Hello,
> 
> 
> I'm using pd-extended 0.43.4, installed via Hans-Cristoph Steiner ppa.
> I'm using this version because I can't install the stable version in
> Ubuntu 12.04.
> 
> 
> The problem is, when I start pd with Jack in -rt mode or wherever
> mode, if I turn on dsp, they work well, but if I turn off, and try to
> turn on yet dsp, pd-extended freeze...
> 
> Closing Qjackctl (after some time ubuntu can close that)
> pd-extended returns to work, and I can use on alsa directly
> sucessfull..
> 
> 
> Someone knows where I can comunicate this bug to the developers? Is
> here the place?
> 
> 
> Thanks a lot!
> 
> 
> -- 
> 
> 
> Esteban Viveros
> 
> (27) 8815 7170
> (27) 3066 0359
> (11) 95761 4125
> (11) 2738 7868
> 
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> 
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> 
> http://www.papodecompositor-es.blogspot.com.br/
> 
> http://expurgacao.art.br/
> 
> 
> 
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