ok thanks, with qjackctl and alsa it works,
thanks, best alex
o'la totes,
i used not very elegant way but it works:
in shell >>
run qjackctl (without activate the start button) run pd and set 'alsamidi' in the media menu.
after this step it should appear in ALSA section of 'connect' button in qjackctl the device (in this case UC33 and puredata)...you only have to connect them .....ckeck it out in a pd patch if it works.