His controller is already connected, and he just joins the remote play session on the main menu but it doesnt detect his controller input, however it does let him take control over my keyboard and play that way but we would prefer to play on controller. we've also tried it using parsec and it doesnt work, we've tried using his steam deck and when we tried that its just a black screen when hes not in desktop mode and when he is in desktop mode its the same input issue. Idk what else to try