@yon100 said in Wire-Connection between two Retropie consoles:

Is there a possibility to use Netplay simply by connecting the two Pies with LAN cable?

Yes, as long as the 2 Pi have a network connection, Netplay doesn't care about the medium used (WiFi/Ethernet/Bluetooth/etc.).

@mitu Thank you, that was the problem!

I may have missed something in the documentation. I thought I had to configure input twice, once for the main box, and once for the second box. But configuring for the second box, even with all the buttons plugged into the same slots, caused the important buttons on the main box (coin, 1P, 2P) to be forgotten.

Ok, thank you

Weird. I tried this a while back and it didn't work. I was using my typical Logitech F310 and a Rock Candy Wired controller. (Granted that the rock candy controller would disconnect if you sneezed on it.) They didn't work together.

You could just make a custom collection and then just add 2 player games to it. I did this to create a separate list of vertical screen arcade games from horizontal ones.

This is highly dependant on the game - some games support 2 player consecutively (like Pac-Man or Super Mario Bros), others support 2 players simultaneously (like the Street Fighter games). It's not something that can be configured in the emulator.
If you have just one gamepad (joystick + buttons) but the game expects 2 players, then you can't change it - the 2nd pair of controls would insert the coin (Select) and also use Start to enter the game.

What game are you trying to play ?

Please add more details about your setup by adding the info specified in https://retropie.org.uk/forum/topic/3/read-this-first, especially the parts about controllers and emulator used.

Do you guys think there is fix for this?

I found the problem. Mame seems to define a controller + a keyboard as possible inputs. Since my controller is a device that is mapped through RetroPad the event gets fired twice: once through the keyboard emulation and once through RetroPad. If the mapping is even different in the retroarch.cfg in can cause some strange events overlapping each other.
Solution: I changed the MAME input configuration to only receive one input (RetroPad). That solved it :)

Maybe you did not install the USB HID quirks for Raspbian? It is a known issue with the older Linux kernels and is described here in the section "Installing USB HID Quirks for the GamepadBlock" at https://blog.petrockblock.com/2017/10/10/tutorial-gamepadblock-raspbian/.

If you require 2 players with joystick and up to 8 buttons on each control (equivalent to SNES controller) you could hook up directly to the gpio using mkarcadejoystick module that is in the drivers in Retropie.

I have 2 cabinets using this system.

@tonythetiger not everyone knows the answer to everything and a lot of times people dont provide enough info for anyone to help. All help here is done in peoples free time and with how many posts get posted in a day some posts can get lost at the bottom of the pile. It would be cool if you posted your solution to be able to help others who have this same problem.

@Ghost-Note

I didn't no, but it depends on your controller. You would have to modify the pins to pick up 4 players.

You might want to check out this thread: https://retropie.org.uk/forum/topic/2565/retropie-psx-emulator-only-1-controller-works/22

I am running original PSX/PS2 controllers on a dual PSX adapter, so it doesn't seem to be affected by the problem you are seeing (that or my configs are just really old and not affected).

@boie said in How can I setup 2 player controls for emulators other than Mame. Specifically for the "arcade" set of emulators.:

After doing more reasurch I found that my problem is that I need to configure my second player for PiFBA.

This is true and once again, if you read the guide it will tell you how and with what file. Please do not ask any further questions until you have read https://retropie.org.uk/forum/topic/3/read-this-first. It is obvious that you have ignored it despite it being printed at the top of the page and despite agreeing to it when you signed up.

@backstander just to make sure we're not having miscommunication, you're using multiple controllers at once? The hid quirk seemed to have no affect....
Thanks again for the replies!

I renamed the file.

I also went to RetroArch congifuration and put the digital->Left analog to P2 and P3 (silly me!!)

It worked like a dream.

Thanx @meleu

@polygaryd you were replying to a reply from 2 years ago, from a thread originally started back in 2016. it's not helpful to bump ancient topics because they can contain a lot of outdated/wrong/irrelevant advice. if you have an issue please post a new thread.