Hi 44
Welcome to the Roku Community!
We understand that you're having issues with Dolby Atmos on your TV screen. Let's work on it.
We'd like to know what Roku device you are using right now. Commonly with some Roku streaming players, you can stream 4K Dolby Vision with a compatible TV and streaming channels. However, you may not be able to view Dolby Vision content at 4K resolution if your Dolby Vision-capable TV was manufactured prior to 2018. These models, and a few manufactured in later years, only support 4K Dolby Vision at lower frame rates like 30 frames per second (or 30fps). Unfortunately, some streaming channels, such as Netflix, will not play 4K Dolby Vision when the TV does not support higher frame rates like 60fps.
We do have a support article to check your Dolby vision, check this out: Why is 4K Dolby Vision not working on my Roku streaming player?
Keep us posted for further assistance.
Regards,
Arvy
