Plasma 6 Wayland + NVIDIA

I've just upgraded to Plasma 6 on EndeavourOS and X11 works, but booting on Wayland via SDDM gives me a blank screen. The display enters power saving mode and switching to a TTY doesn't wake it up.

Anyone else having this problem, or with a workaround suggestion?

    
NVIDIA Driver 550.54.14-4
Operating System: EndeavourOS 
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.8-arch1-1 (64-bit)