What to do if HDR10 and Dolby Vision are greyed out on Xbox Series X and S
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xbox series x not recognizing 4K at 60 fps - Microsoft Community
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PS5 is finally getting Variable Refresh Rate (VRR) and it can also work without game support - Neowin
Amazon.com: llano HDMI 2.1 Switch, HDMI Auto Switcher 4K@120Hz 8K@60Hz with IR Remote, Switcher Selector 4 in 1 Out Supports ARC, CEC, HDCP2.3, 3D, HDR10+ VRR ALLM for PS5 and Xbox :
Why is VRR greyed out on LG C9? : r/xboxonex
Variable refresh rate and other features greyed out on Series X : r/xbox