[PD] ubuntu linx: a couple of pd+jack errors

João Pais jmmmpais at googlemail.com
Fri Feb 3 23:04:49 CET 2012

Hi list,

I was trying Pd-Ext (last stable version) with jack on ubuntu linx, and  
got a couple of mistakes. Can someone elucidate on what they are?

this one appears when I try to start Pd -nogui:

"error: JACK error: cannot lock down memory for RT thread (Cannot allocate  

This one appears when I load a complex patch. It also crashes Pd:

"tk scaling is 1.3187954309449634
pd_gui: pd process exited"

Funnily, Pd+Jack works with the same patch - as long as I start Pd with  
alsa, and after loading the patch change the audio to jack.

Thanks as usual,


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