Hi I'm using bodhi linux ubuntu 14.04, low latency kernels, kx studio plug ins and ladish utilities on an AMDx2 3.0gz 3gb RAM and NVIDIA 304.117 drivers.

I'm working with pd-extended 0.43.4-1 on a pure midi-controlling and sequencer patch, the only audio processing done by pd is some audio samples using readsf~. Everything was working perfect and fast, GUI, samples, midi controlling, sequencers with pd version 0.43.1 until I update my system to pd 0.43.4-1 and now everything is slow, NumberBox, sliders, knobs. My patch is purely graphic and midi oriented. Is there a way to do it faster again?. Or I have to go back to pd 0.42.5? Thank you very much...

I've checked processor load and when I hit the play button, Xorg goes up to 65% and when I stop the sequencer it comes down to 6-8%. Any Idea?

Do I have any chance to go out of this problem? Maybe compile pd-extended with a different toolkit? or maybe do another GUI with python and QT or GTK? What are my options? Thank you very much...

I've heard pd's tcl/tk based GUI objects are somewhat CPU intensive..

In my experience, pd's GUI acted much slower when running in Mac than running on Windows.

Are you using lots of GUI widgets? as much as to fill the whole screen?

Hi!,

Yes, My screen 1900x1080 is full of sliders, numbers, knobs, radios, bangs, etc. I was working on this patch for one year and everything was working perfect, really fast. One day I updated the system and after that all numbers and controls where incredible slow... I heard they changed PD, splitting the sound processor from the GUI, doing them two different process....

it looks like this is caused by certain 2d operations not supported (accelerated) by the graphics-card driver.
this happens here with the opensource radeon driver, as well as on a mac-mini (running ubuntu)
with the nouveau driver.
it is worse, the larger the window is.
proprietary fglrx runs fine (concerning this issue...), opensource intel too.