Roku Device Features, Settings & Updates

Help configuring Roku device settings, using Roku OS features such as screen mirroring, adjusting display type and audio settings, using Guest Mode, and assistance with software updates.
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Level 7

Display not 4K on 4K TV

I recently bought a Roku Premiere for my 4K TV, when I go to display options it says it should be running at 4K 60hz but the picture quality doesnt look any different than 1080p leaving everything with this blurry look to it. Any help would be greatly appreciated, I bought this to get the most out of my TV.

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5 Replies
Level 14

Re: Display not 4K on 4K TV

What apps are you using? Not all support 4K, and even then, not all material is 4K. For some services, like Netflix, you have to pay extra for 4K access.

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Level 7

Re: Display not 4K on 4K TV

@andyross my Netflix account is able to stream in 4K but I just meant everything in general, regardless of what I use on the roku the quality looks really low

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Level 21

Re: Display not 4K on 4K TV

When you look at the Settings/Display menu in the Roku, what does it show for the resolution setting? If it's not displaying 4K/60, you could try setting it manually. It's also possible the HDMI cable isn't rated for 18 Gbps speed, which is what 4K/60 requires.

Are you connected through an AVR?

Also, many 4K TVs require a settings change in their menu to enable full 4K/60 operation. Samsung calls it UHD Color, and must be enabled on each HDMI input separately. Finally, not every 4K TV offers 4K/60 on every HDMI input. So you could check that as well. 

Dan
Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
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Level 7

Re: Display not 4K on 4K TV

When I'm in the display menu it auto detects 4k60 and even when I manually set it to manual 4k60 nothing changes, and I've tried using the HDMI wire that comes with the roku and the HDMI wire from my PS4pro and the port I've got that hooked into because I know that it works and still no change. I don't know what AVR means as I dont mess around with TVs very often but everything seems like it should be ready 4K so I dont understand why it wont work.


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Level 21

Re: Display not 4K on 4K TV


@ShadyShawnn wrote:

When I'm in the display menu it auto detects 4k60 and even when I manually set it to manual 4k60 nothing changes, and I've tried using the HDMI wire that comes with the roku and the HDMI wire from my PS4pro and the port I've got that hooked into because I know that it works and still no change. I don't know what AVR means as I dont mess around with TVs very often but everything seems like it should be ready 4K so I dont understand why it wont work.



Sorry, I should have spelled that out. AVR is audio-visual receiver. But if all your devices are connected directly to the TV, then you likely don't have an AVR, as everything would connect to it, and only it would connect to the TV.

Since your Roku is auto-detecting 4K/60, then that's what it should be sending out. Now the Roku user interface itself is just 1080, but they still look nice and sharp on my 4K TVs. As mentioned, not all content available is 4K, so you have to make sure what you're watching is really 4K. YouTube has an HDR Channel that offers some true 4K video, and for the most part provide a great test of your display. It's certainly possible there's something amiss with your TV settings, but I wouldn't know where to begin telling you what to check there. If you have a Samsung, I might be able to compare it to mine. 

Dan
Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
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