I have recently purchased the 65” S95C and after initial setup of the PS5 via HDMI it will just show the HDMI not connected screen whenever it is selected.

Other consoles show and work consistently and have tried multiple different ports and different HDMI cables but no difference.  The same PS5 works and shows perfectly well on the Frame TV in another room.

can anyone suggest why this is the case? 

firmware is updated to current version and Samsung soundbar is connected via optical cable.