Xbox Series x HDMI not flush

And what if I buy a cable will it work

The Xbox Series X will come with a HDMI 2.1 cable,

But whether you use a HDMI 2.1 cable or not, the HDMI port on the TV needs to be HDMI 2.1 to achieve the 120hz refresh rates at 4K.

using a HDMI 2.1 cable on a TV port with HDMI 2.0 will still only limit the Xbox Series X to 60hz refresh rates.

[table][tr][td]Xbox Console HDMI Port[/td][td]HDMI Cable[/td][td]TV HDMI Port[/td][/tr][tr][td]Xbox Series X, HDMI 2.1[/td][td]HDMI 2.1[/td][td]HDMI 2.1 = 4K at 120hz[/td][/tr][tr][td]Xbox Series X, HDMI 2.1[/td][td]HDMI 2.0[/td][td]HDMI 2.1 = 4K at 60hz[/td][/tr][tr][td]Xbox Series X, HDMI 2.1[/td][td]HDMI 2.1[/td][td]HDMI 2.0 = 4K at 60hz[/td][/tr][/table]

The Xbox One X is the only console that has HDMI 2.1. Xbox One S has HDMI 2.0.

The Xbox One S and One X both use HDMI 2.0,

The Xbox One uses HDMI 1.4

The Series X will have HDMI 2.1.

I have almost the same problem except the error message says

“if you’re using Xbox series X/S, note that HDMI audio can’t be turned off. In other consoles, either optical or HDMI audio must be on. (0x80bd0009)

Why can’t I turn off hdmi audio on Xbox series x it makes no sense?

So o can connect the hdmi 2.1 to a regular 4 k 2.0 hdmi port but I will not get the full experience or
there will be like some xbox series xs that have different cables.

No, The Xbox Series X has a HDMI 2.1 port therefore it will always ship with a HDMI 2.1 cable,

[table][tr][td]Xbox Console HDMI Port[/td][td]HDMI Cable[/td][td]TV HDMI Port[/td][/tr][tr][td]Xbox Series X, HDMI 2.1[/td][td]HDMI 2.1[/td][td]HDMI 2.1 = 4K at 120hz[/td][/tr][tr][td][td][td][/tr][tr][td]Xbox Series X, HDMI 2.1[/td][td]HDMI 2.1[/td][td]HDMI 2.0 = 4K at 60hz[/td][/tr][/table]

"So o can connect the hdmi 2.1 to a regular 4 k 2.0 hdmi port but I will not get the full experience or there will be like some xbox series xs that have different cables."

Yes, you can connect a HDMI 2.1 cable to a HDMI 2.0 port on your TV, you'll just be limited to 4K at 60hz, which is no different to what it like to play on the Xbox One X right now,

[table][tr][td]Xbox Console HDMI Port[/td][td]HDMI Cable[/td][td]TV HDMI Port[/td][/tr][tr][td]Xbox One X, HDMI 2.0[/td][td]HDMI 2.0[/td][td]HDMI 2.0 = 4K at 60hz[/td][/tr][tr][td][td][td][/tr][tr][td]Xbox One X, HDMI 2.0[/td][td]HDMI 2.0[/td][td]HDMI 1.4 = 4K at 24hz to 30hz[/td][/tr][/table]

As long as you have HDMI 2.0 port on your TV you'll be fine to use the Xbox Series X, but if your wanting to experience 4K at 120hz, you'll need a TV or Gaming monitor that has HDMI 2.1 ports.

That the Xbox Series X supports HDMI 2.1 doesn't mean your TV needs to support that too. You can user your old TV with the Series X for sure.