[PD] midi problem under osx

[Nicolas Montgermont]

Hello list,

I run into a special problem with MIDI input under osx...

I am getting some MIDI inside Pd, the MIDI is coming from an interface-z 
card that is transducing a sensor.
The midi info is on two control number for higher (12bit) precision. 
Sometimes the MSB value is not updated well, but the LSB is, and that 
gives me weird behaviors.

I have tested the same patch with Pd-extended 0.42.5 under mac osx lion 
and on another computer with osx snow leopard, both have the same 
problem, but the same patch on a third computer with windows xp is 
working well.
I have tested as well two midi->usb interface (a basic one and a motu 
micro lite) with the same behavior.

So it seems to me that the problem looks like Pd midi driver on osx.
I have tested to modify the audio latency, to change the MIDI latency, 
but that gives me no better result.

Do you have an idea of where i can look, or a workaround i can find?

Best,
n
-- 
http://nim.on.free.fr