I am truly sorry @voljega , I was so sure mapping the buttons did not work but I totally failed. After having done the tutorial and then trying to map the I-PAC2 using EmultationStation it in fact did work. Sorry about that. It seems fine now.

@luke Can you f**kin stop embarassing yourself and finally agree to follow the tutorial posted as the first response to your questions and the advices of people having a working IPAC2 on recalbox ?

I told you twice I already did that

I filed a GitHub Issue

Hello, I have a pre-2015 model of the I-PAC2 which is recognized as a single keyboard by the system (which is not an issue of EmulationStation, that is just how it was built). However, it seems impossible to set up 2 players using a single player with EmulationStation. I can only map one player who uses the I-PAC (recognized as a single keyboard for both players) to EmulationStation. When I want to set up the second player it removes the inputs of player one—it seems because one player can only use one device (in my case the I-PAC-"keyboard"), I cannot have 2 players use the same keyboard.

https://github.com/Aloshi/EmulationStation/issues/667

So I found the config file to set up the keyboard controls, it's in /system/.emulationstation/es_input.cfg. There are lots of entries ("inputConfig"s) for different device mappings. However, each one is for a single player only and for keyboard I can only seem to have 1 entry, so for 1 player only.

If you find something let me know because I have the exact same problem and I cannot find anything.

All it would take would be an option (like a config file) to enter keyboard controls for 2 players.

And I cannot map 1 keyboard to 2 players using emulation station. So I am simply looking for a config file or something where I can enter the exact keys as they are mapped on my I-PAC2

Dude this is the quote I have from the maker of I-PAC, Andy Warne:

The pre-2015 boards don’t have the game controller device so there should not be any issue.

I am sorry if I have upset you but I am telling you the I-PAC is recognized as a keyboard and I have followed the instructions from the Wiki and when I do that the mappings are wrong. I steer with stick 1 and have to push buttons from the buttons of player 2, some buttons of player one and all buttons of player two are not mapped at all.

I mailed the maker of the thing. He told me this is a common misconception because some dude on Reddit said it but it is wrong. It is a keyboard.

@voljega The instructions don't say anything about a controller. The I-PAC2 acts as a keyboard and is recognized as a keyboard by the system.

Then just remap directions and buttons in Emulation Station and everything should be fine

The problem is, in Emulation Station you can only assign the keyboard to one player. I cannot map some keys to player one and some to player to. When I configure the keyboard for player one and then for player two, the keyboard as a device gets assigned to player two and the mappings for player one are lost.