Auto disabled HDR while resume gaming ob XSX

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?

if you went away for a while and the xbox auto turned off when you turn it back on to resume it turns the auto save off.

I will try plugging it into the wall without a surge protector, I have it connected to hdmi port 2 because the tv manual says ports 2 and 3 have hdr and hdmi 2.2 support.

And as far as the hdr setting on the tv I have it set to auto, the options are auto,hdr 10 and hdl. But come to think of it I just downloaded a firmware update that adds Dolby Vision to the tv.

I have the same model of Sony. You have to select HDR 10 as "auto" doesn't seem to work while playing games.

Hi JayJoe1,

So there is no difference, you enable HDR on your TV then your console will auto enable it when you play HDR content, otherwise if you play a game or a video that does not support HDR it will not enable HDR. Like Darkist1 said the picture especially in shows
on Netflix will appear a lot darker, this is the HDR showing more colors, you can try adjust your picture while watching a HDR video to try improve this to your liking.

Hi,

In addition to Arminator's comments, HDR is best set to 'Auto' on your TV/monitor.

Setting it to always on won't look right for SDR content, luminecence and colour will be all wrong on SDR games and video content with HDR forced to on.

With HDR set to Auto, your display will only use HDR when HDR content is detected.