[PD] Raspberry pi 4 startup problem

[Simon Iten]

Ok, I have a strange one…

I have a raspberry PI 4 with a usb sound card as in/output and a patch that starts up on boot (via the simple autostart in /etc/xdg/lxsession/LXDE-pi/autostart)

Since I also need graphics from puredata.

Whenever pd is auto-started, it does not get any sound input. 
As soon as I go to the media -> audio settings menu, I can see that the card is correctly specified.
Now a simple “Apply” (without changing anything else) makes the sound work.

Opening a pd patch manually I have correct sound input without going to the menu…

Any tips?

I tried delaying the dsp 1 message on loadbang by 200ms since I read somewhere this could be the problem.