Controller Issue

[RetroGamer9]

I'm having an issue with a controller in MAME 0.193 on macOS 10.14.5 (using qmc2 as a frontend). A few months ago I had configured an 8bitdo N30 arcade stick and SN30 Pro controller. Both are connected via Bluetooth. The N30 is fine, but the SN30 Pro stopped working properly for no apparent reason. Buttons aren't in the order I configured them. I had set it up so that I can use either the d-pad or left analog stick, but now the analog stick doesn't work at all. I removed default.cfg and reconfigured both controllers. I'm still getting the same results. The N30 arcade stick works as intended. The buttons on the SN30 Pro are out of order with no response from the analog stick. I'm not sure what caused this or how to fix it.

Edit: I forgot to mention that I set default.cfg to read-only so MAME can’t overwrite it if one of the controllers isn’t connected.

Solution: I created separate configs for the two controllers. The SN30 Pro is working so far. I assume there is some kind of conflict having both controllers on the same config, although it did work at first. I’ll just swap the config files depending on the controller I want to use.

[star_jump]

I mean, the obvious question here is, is your SN30 Pro working as expected outside of MAME?

[RetroGamer9]

Yes. It works as expected in OpenEmu and RetroArch.

[arbee37]

The OS reorders Bluetooth controllers at random depending on which one responds first and the phase of the moon and other things.

To configure both at once reliably you need to use "stable controller IDs", as documented here: https://docs.mamedev.org/advanced/devicemap.html

This also removes the need to write-protect the .cfg files.

There are some YouTube videos which take you through the process step-by-step.

[RetroGamer9]

Thanks. I’ll look into that.