Hi, you still having problems? I think I have figured out what it is. You have to use a power source for the chromcast ultra that is strong enough to support the Stadia app in 4K. On the Fire T...
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Hi, you still having problems? I think I have figured out what it is. You have to use a power source for the chromcast ultra that is strong enough to support the Stadia app in 4K. On the Fire TV stick, if you don’t use a strong enough Power adapter then the experience on the TV is limited. I think it is a similar thing happening here. All I know is when I am using the TV is USB port to power the chrome cast, The options for 4K and HDR are not available. When I power the chromecast using the adapter provided with it, then the options for 4K and HDR are available. I think it is an automatic setting on the chromecast Ultra