loujezJust to let you know that i have found what was the issue.
Actually the GPIO's pins of my raspberry seem to be defective. I have tried an image of retropie built by one of my mate and the issue was still here. I have also tried my arcade controlers with recalbox and the same buttons didn't work. I'm going to operate the warrenty of the product and this will be the end of all my troubles.
I did not have luck this time. Next will be the good one.
Regarding to usb zero delay device, i would like to avoid it because i have already one usb port used by my keyboard, another one by my hard disk, and i would like to keep 2 usb ports free.
It would let me to eventually connect other devices such as bluetooth guns (to play “time crisis” for instance) or to add 2 more arcade joystick for 4 players game and so on. I could use a usb HUB to do all theses things but i dont want to add too many intermediate electronic composants to the chanel. Either way if it had been the only solution, i will have chosen this method ?
Now i have seen a video on MLP youtube channel where he explains how to fix and reboot controls on any images he has shared.
t=619s
I bet on this one when i will get back my repaired raspberry.
Thank you all of you for gaving me advices during this period of troubles ^^ I hope this topics will be able to give help for thoses who meet similar issues.
Cheers from france