1st Gen 4K Apple TV only showing 1080p as max resolution

My Apple TV is only showing 1080p as my max resolution. It shows 720p and lower ones at different frame rates. I’ve tried different HDMI ports, HDMI cables, making sure my tv and Apple TV are fully up to date.


my setup:

1st Gen 4K Apple TV

Samsung UN50NU7100FXZA

Rocketfish 8K 48gbps HDMI 2.1 cable

UNU7100,

Posted on Dec 5, 2021 9:49 AM

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Question marked as Top-ranking reply

Posted on Dec 6, 2021 3:55 PM

Your TV has HDMI 2.0 ports. Apple TV 4K (1st generation) has HDMI 2.0 ports. HDMI cables certified for 18 Gbps would be enough (but 48 Gbps would work fine too).

Verify if your need to configure your TV HDMI ports for ‘enhanced’ high bandwidth use (some TV brands do).

Verify that you set the HDMI Output on Apple TV to YCbCr (not RGB), and set Chroma to 4:2:0. Then you will have enough bandwidth for 4K HDR.

If you still don’t see 4K options after that, then Reset the video settings on Apple TV.

2 replies
Question marked as Top-ranking reply

Dec 6, 2021 3:55 PM in response to AMDouglas

Your TV has HDMI 2.0 ports. Apple TV 4K (1st generation) has HDMI 2.0 ports. HDMI cables certified for 18 Gbps would be enough (but 48 Gbps would work fine too).

Verify if your need to configure your TV HDMI ports for ‘enhanced’ high bandwidth use (some TV brands do).

Verify that you set the HDMI Output on Apple TV to YCbCr (not RGB), and set Chroma to 4:2:0. Then you will have enough bandwidth for 4K HDR.

If you still don’t see 4K options after that, then Reset the video settings on Apple TV.

Dec 6, 2021 9:50 AM in response to AMDouglas

Greetings AMDouglas,


Welcome to Apple Support Communities. We can understand the concern with this trouble you're having with the Apple TV 4K, and we're happy to help. We suggest trying an Apple approved HDMI cable for optimal results. You can get info on such a cable here:


Belkin UltraHD High Speed 4K HDMI Cable (2m)


Should your issue persist after doing so, get in touch with Apple Support for additional assistance:


Get Support


Have a great day!

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1st Gen 4K Apple TV only showing 1080p as max resolution

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