@mitu thanks very much for the quick reply

@mitu It works just fine within EmulationStation, but once I start RetroArch everything freezes until I connect the USB controller.

@jakejm79 Did you ever figure this out? I was thinking it would be awesome to use the same idea to unlock the console with key inputs to be able to use a coin dispensor. But am not finding anyway to do what you were requesting either.

@roguecaveman I was thinking the same and whilst this might work with an IPAC I can’t see how you would do it with one of those generic USB encoders as they have mini Molex type plugs? Therefore I am also keen to know how to assign Exit to one button in the config?

@PonasM I put together a guide here for xboxdrv. It's an involved process, but very flexible.

Ahhh shoot. Thanks both. Out of interest, is there any way to set the Logitech as the 'primary' controller - so that when I plug in the RetroFlag one the Logitech continues to be the one that can access the RGUI menu?

Nevermind solved the issue.

@classicgmr said in USB controller: @ecks Sweet. :) Glad it worked out! Well i would recommend that controller only if you plan on buying a Pi for a family member or friend lol.

actually i think there is a hardware problem with the controller. as i booted retropie right now.. no controller was found. unless i plug in the other controller. so i probably think there is a hardware issue with the one controller..

@arj5193 once you get into the game press your hotkey & X at the same time.

@stevepax Hello and belated welcome to this forum. I'm close to finishing my own arcade cabinet myself and I plan to do something similar to you but with two bluetooth controllers for players 3 + 4. I didn't dive into the matter deeply yet, however, but I'll try to answer your questions to the best of my current knowledge. If the emulator and the game rom support four players, you should be able to configure the controls for players 3+4 just like those for players 1+2. Mind that some games come in different versions (roms). TMNT has 2 and 4 players versions, for example. Its 2 players versions have "2p" in their rom names. At least Retroarch should recognize your controllers upon reconnection. A common advice is to connect them every time to the same usb ports in the same order. There's also a script by @meleu called joystick-selection that simplifies the mapping of controllers to players, and if the controllers should be recognized by their names or by the ports they're plugged into. Alas, I don't know. You're rightly terrified to lose your configuration if you didn't backup it recently. Do so now, because bad things happen all the time to "valuable" data, e.g. storage failure. (I put "valuable" in quotes because there is a saying that data with no backups isn't important by definition; if it were, it would have backups.)

Default behaviour is to assign controller number in the order of connection. You could use the @meleu 's joystick-selection script (available from experimental packages) to map your controllers by core (ie snes pad for snes games).

Ok have resolved this issue by performing a fresh install after backing up roms via network Installed using retropie v4 video installing controller from fresh install all works fine, 2nd player works fine too also start & select now exits games

On my system sudo apt update sudo apt dist-upgrade install kernel 4.9.35-v7+. DragonRise Inc. Generic USB Joystick works without any problem (just redo controller configuration from EmulationStation). You should never use rpi-update ;-)

@megafacehead The dispmanx driver should not be something that makes a game from unplayable input lag to playable. It should make a playable game from good input lag to better. He probably altered the config or is using a 3rd party image.

@retropied You can try looking at @meleu's handy joystick selection script - https://github.com/meleu/RetroPie-joystick-selection - and adapt it to automatically re-order the controllers based on the emulator started.

@barbudreadmon thanks for reply. I’m sure mame2010 only supports 1-2 players so installed mame2014 and it’s now working great!