LED local dimming

[Tony Ortega]

I have an Xbox Series X and have an LG nano85una TV. The goal I want is to have Local LED Dimming turned off on the TV at all times while using the xbox series x. Local LED Dimming is off when I’m on the xbox home menu, until I launch a game, then the TV says instant game response in the right upper hand corner and Local LED Dimming is turned on during the game making everything look grayed out in dark areas even tho its still set to low. I want it off and it is grayed out in the tv menu not allowing me to change it. Anyone know what settings on the xbox I would have to change? When I set the xbox off of Auto-detect to manually test out what setting is making this happen, it says my TV is not 4K, but it is, and everything looks way below 480p. Spent 2 hours on the phone with LG to find out its the xbox making the LED Local Dimming turn on, not the TV itself. Any advice would be welcome. Thank you.