I agree the lighting is off in places but I have had great success tinkering with calibration settings and RGB settings on both my 1080P plasma, 1080P Acer TV and 1080p DLP projector along with making changes to the output from the Xbox one. Whether it’s a PC or Xbox both have settings for RGB (see below). Let it be said though, Forza on Xbox has always had it’s fair share of lighting issues often resulting from the color range settings being used, often far too dark when it’s daylight or when lighting’s corrected an overall washed out effect prevails. Which is why I say pick your poison…
I believe the display you are using is a TV not a PC monitor and may be the culprit if your PC is sending a Full RGB signal(which pc games do by default) via HDMI and your display interprets it incoming as limited RGB.
Just trying to help/understand…here’s some info that may assist…
Black colors may look washed out and gray if you connect your PC to its display via an HDMI cable, and it’s not your display’s fault. This is due to the way your graphics card is converting data to colors, and there’s an easy fix.
RGB Full vs. RGB Limited
PCs, TVs, and other devices represent colors using a range of numbers. “RGB Full” represents colors using values from 0 to 255. 0 is the blackest black, and 255 is the whitest white. “RGB Limited” represents colors using values from 16 to 235. 16 is the blackest black and 235 is the whitest white.
TV shows and movies use RGB Limited. PCs and PC games use RGB Full. If you have your PC set to output content in RGB Limited format, colors on your PC will look more washed out. Your graphics card will send 16 for the blackest black, but your monitor will show it as grey, expecting 0 for the blackest black. In other words, they’re mismatched. And vise versa when your PC is set to full but your display is set to limitted.
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What’s the Difference Between HDMI and DVI? Which is Better?
If you connect your computer to its display via HDMI, your graphics drivers may select RGB Limited if they suspect you may have connected your PC to a TV. That’s why this problem only seems to occur when you use an HDMI connection, although some people do report it happens on DisplayPort connections. If you connect your PC to a display using DVI, your drivers should automatically choose RGB Full.
Long story short: Unless you’re watching movies on a home theater PC, you’ll almost always want your computer to output color in full RGB. Your driver should automatically select RGB Full for PC displays, but this doesn’t always happen. But you can change it manually.