Da click si citeste ce e la workaround:
Quote Originally Posted by Microsoft
4K/120hz
Known issue: If you're using a 4K@120Hz TV that also supports VRR you might encounter no signal or a corrupted image when the Xbox is configured for 4K120+VRR. This issue occurs with various TVs from LG, Samsung, or Vizio.
Known Issues on Xbox Series X|S - Microsoft Community