Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

roku ultra only 16:9 in 4k

I have a roku ultra LT from wal mart and an older one 5yrs old from best buy.

When streaming 4k they will not allow playback of anything but the 16:9 with black bars on top and bottom why?  We wont get into dolby vision yet, another topic.

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Level 21

Re: roku ultra only 16:9 in 4k

Are you saying it forces everything into 16:9 or you would like to stretch and distort the picture so that it fills the screen?  That's a function of the TV, not the Roku.

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