Power savings (screen off) in SDDM (Plasma 6)

Help
1

Hi folks,

I recently upgraded from Plasma 5 to Plasma 6

services.xserver.enable = true;
services.displayManager.sddm.enable = true;
services.desktopManager.plasma6.enable = true;

I noticed that after rebooting, my laptop / PC screen stays on. To let it go off after a timeout, I need to log in (to enable Plasma 6 power settings).

Do you know how to enable power settings before login?

Thank you.