Hi,
I saw the problem.
It's having the keybozrd + the joysting that creates the issue.
Removing keybord is OK to solve
Thanks

Hello,

I'm building my bartop with a Pi4 and last release of recalbox.
Testing it on the screen with a keyboard is OK. Everything is working well.
Games are launching fine.
But when I connect the joystick, then after trying to launch any game I have a black screen with undervoltage detected and the game is not launching saying it's probably a bios error.

Can you help ?

Thanks!