Reply To: Retropie 3 beta 2 issue – unable to 'Configure Retroarch Controller'

[Floob]

I’d recommend going back to the clean image as you have edited the retroarch.cfg files quite a bit. You could put them back how they were but may well be easier starting again.

When you configure the retroarch joypad from the menu, it updates the controller file in this directory.

/opt/retropie/emulators/retroarch/configs

This is referred to in the main retroarch.cfg file
/opt/retropie/configs/all/retroarch.cfg in these line

input_autodetect_enable = true
joypad_autoconfig_dir = /opt/retropie/emulators/retroarch/configs/

If you start editing the retroarch.cfg its very easy to screw this up.

Rule of thumb is if you want auto detection etc.. keep the default truned on.
If you want to heavily customize the controller for each system, do it in the system config directories, I’d really try to leave retroarch.cfg alone.

I *think* your joypad is the USB_Gamepad_.cfg file

This video should help

You can double check your controller settings with jstest