My PS4 pro would not allow the Samsung tv to go into game mode. My tv goes into game mode but when I connect the Ps4 it drops the game mode. I use this solution found here. Basically
you still aren't in game mode but it works out ok. Don't buy any upgrades.
First of all use the DVI HDMI input.
Activate UHD Colors before plugin a HDMI cable to the TV's DVI port (IMPORTANT)
now insert the Cable in TV HDMI DVI port.
Rename the Source as PC on your tv set(important) If you skib this part your not going to get full 4:4:4 chroma (RGB) If you want Game mode rename to default but after that you will get a higher imput lag and be limited to 4:2:0 chroma
On your Playstation set Everything to Auto in the Video-Output settings.
Your Ps4 Pro's tv info should now be.
3840 x 2160 - 60hz With RGB
Kick back and enjoy
You dont need HDCP 2.2 to play games so dont overthink it. its just a copy protection input
