@mitu i updated the firmware to the latest release v1.36 and tested the result yesterday evening.
A step forward: the pad does now work perfect when it is connected wireless.
As soon as i use it wired the strange behavior returns :)
But in the end i can live with that, i now can finally try all the games that do not show up importent text in "lr-ppsspp".

@zemaduvant said in 8BITDO SN30 PRO PPSSPP:

So i figured out the solution.

That's more like a workaround, since lr-ppsspp doesn't use the same input configuration as the standalone ppsspp.

What you could try is get the latest gamecontrollerdb.txt and copy it to /opt/retropie/emulators/ppsspp/assets/, then see if your controller behaves better.

Since the destination folder is not writeable by the pi user, copy the file to the roms folder first, then run, from the command line:

sudo cp $HOME/RetroPie/roms/gamecontrollerdb.txt /opt/retropie/emulators/ppsspp/assets/

I just realized that while i wait for a fix, i can just mod the ps1 version and play that! relief is here yay

@ReadyPlayaWon thanks!
I removed the other PPSSPP I had and installed the lr-PPSSPP package, the controls all worked out of the box!
Thank you again!

Installed, same issue. So I dunno then.