Auto-detect limits to 640X480 resolution - 4k set manually

It reverts back to low res after switching to 720p or 1080p. I changed the auto detect to hdmi and ran the same test. The screen goes black displays no signal then goes back to the settings dashboard. It stays on 640x480 resolution mode.

Just to cover all bases I even tried testing on a 4k tv. That didn't work but that's probably unrelated to the primary issue.

Also please check if your samsung set on auto detection of resolution this xan avoid conflicts with resolution

If you dont use 4k with a certain mode like uhd or hdr

Or certain refresh rates I forgwt which one xbox supports

You can refer to.the manual

Thank you! Id already seen this video. So ive reset it into Low Res mode and then i cant change the resolution to any higher than 640x480.

i have three other options:

720p, 1080p and 4K UHD but whenever i click on any of those it just loses connectio for 20s then comes back in 640x480. Its a brand new TV, bramd new HDMI. Ive changed it from the auto detect mode to HDMI and still its the same. I’ve never been so frustrated!

Make sure your monitor supports HDMI 2.0 so it can do 4k at 60hz. HDMI 1.4 can only do 4k at 30hz and the xbox one does not support that. For example, my monitor does not support 4k 60hz with HDMI but it does with display port. My max resolution is 1440p
on HDMI. I do have HDMI 2.0 though, but something must not be detecting it properly.

Monitors are trickier than TVs because auto-detect sometimes does not work correctly and the xbox does not know that the monitor can do 4k at 60hz through HDMI. And if you select Manual from Auto Detect on the xbox one settings, you can't select 4k because
4k is only available when you have auto detect enabled, to my knowledge.

Display port is one thing that monitors like yours have, that support 4k at 60hz and more, but the xbox does not officially support display port and you would need a special "active" adapter for that and xbox can't guarantee that that will work.

Hi mike hstry,

Sorry you're having issues with your 4k TV and your Xbox. Did you manually put in your video settings, or did you let the Xbox auto-detect them? If you manually put them in, try going to your video settings and allowing the Xbox to Auto-detect your settings.
Also try following this link to troubleshoot some 4k display issues.

Let us know if you're still having problems after this.