LEAP 15.1 Nvidia optimus on Leap with bbswitch

Hello, Is there any working tutoria for optimus laptops for Leap? How to make this fully working with bbswitch?
With suse-prime, cards are changing but Nvidia is all time ON in background which make it overheating. With package suse-prime-bbswitch ... its not working at all.
Same problem with Leap 15.1 and 15.2 Beta.
Nvidia MX150 + drivers 440

Thanks