@Luca1 said in Retropie install missing emulators:
1 & 2 buttons seem to be mapping to 2 buttons on my arcade cab fine
Well, that's half the problem. As for the joystick, the software might be expecting to find an axis and isn't seeing one. I took a brief look at the Xin Mo controls and it appears to present itself as a keyboard with each button activating a key press. My arcade control system does the same thing, but I only use it for MAME.
If you're really intent on getting the arcade controls to work, you may have to find mapping software capable of mapping keyboard keys to a virtual controller. I've been looking for a similar solution for a while and keep coming up short. I know that xboxdrv can't do it and I'm pretty sure you can't do it in Joymap. You might want to look into Linux Joystick Mapper. There are also a few people on the forums here who have contributed to the development of UAE4ARM, so it's possible that they might find their way here and have some input as well.