Hello, Does Xbox One X support auto hdr?

Himinchevsavchev ,! I'm Luis, a fellow Xbox Gamer . Thanks for reaching us out here.

Unfortunately no

Auto HDR is supported by Xbox Series X|S consoles only

Hello There! For most games that support boost, the feature is on by default. However, for some games, you’ll need to enable it manually. This why i advise you to check the link bellow for further assistance.

Configure your Xbox Series X|S to support FPS boost and auto HDR | Xbox Support

I'm more interested in knowing if Xbox One S/X will support 1080p and HDR for gaming. I'm fine with ignoring 4k for now.

Thank you!

Yes, it does. HDR does not depend on 4K output. If your 1080p television supports HDR, then it will work for the games that have HDR color palettes available. It is up to the developer to enable this option in their games.

The only Xbox One family console that does not support HDR for gaming is the original, first-generation Xbox One.

you need hdr for 4k output

Actually, you don't.

Uhd and hdr are required for 4k output

You need UHD, in the sense that you need the TV to support 3840 x 2160 resolution, but you don't need HDR enabled to reach 4K. UHD 4K is the amount of screen resolution available measured in pixels, HDR is the ability of the TV or monitor to display more
natural colours.

Note that the Xbox One S can do HDR in games that support such a feature, but regardless of what resolution you set, all games max out at 1080P internally. If the display is 4K, it will remain in 4K, but games will only be upscaled. Only the Xbox One X
can play Enhanced titles in 4K natively.

You should be able to disable HDR, how you disable it depends entirely on your TV. Disabling HDR via the TV settings should not disable 4K screen resolution. Indeed, some Xbox One games do not support HDR, Fallout 4 on the One X can play in 4K for instance,
but it does not support (or indeed have an option for) HDR.

On my Sony Bravia Android based TV, I had to go to the main settings and enable HDR functionality. Even then, I had to set the HDR setting to 'Auto' on the HDMI port I have my console connected to. If you have HDR set to 'On' all of the time, non HDR games
will display the wrong colours, look oversaturated. With 'Auto' enabled, HDR will only operate when it detects an HDR supported game. This may not be a feature of your display however.

What make and model is your TV?

I would highly recommend adjusting your settings to what's mentioned here => Configure your Xbox Series X|S to support FPS boost and auto HDR | Xbox Support