Xbox One X, HDMI 2.1, and 4K @ 120Hz for XH90 (XH9005 XH9296)

[EmGee313]

I can't get the Xbox One X to set a 4K resolution at 120Hz, advice?

(VRR and ALLM boxes remain unchecked)

Setup

• I've updated my XH9005 (XH90) to the latest HDMI 2.1 firmware (6038).
• Using a premium HDMI 2.1 (48Gbps rated) cable plugged into TV's Port 3 and Xbox One X.

Background

• Xbox One X has HDMI 2.1 support, so 4K @ 120Hz should be in spec
• I am aware the GPU cannot get close to 120Hz in 4K, but the lower intensive games should be in the threshold of VRR for the XH90.

What am I doing wrong? Much appreciated.

[stormyuk]

The PS5 does not yet support VRR as you say so it won't matter if the TV supports it or not until the PS5 gets a firmware update to add VRR unfortunately.

There is also a lot of misleading info out there on Xbox One X. If you refer to the Xbox official site it only claims HDMI 2.0 support. (Screenshot attached)

See; Explore Tech Specs

https://www.xbox.com/en-GB/consoles/xbox-one-x

Might be better contacting MS directly for clarification.

[EmGee313 · Accepted solution]

Thanks, I've reached out to a "specialist" at Microsoft Support. 

They weren't immediately sure,  but eventually sent me this link:

https://support.xbox.com/en-US/help/hardware-network/display-sound/4k-gaming-at-120hz

Saying that 4K @ 120Hz is only possible with the Xbox Series X and not for the One X... 😓

[EmGee313]

Thanks, I've heard of the "120Hz blur", but have not looked closely while playing Dirt 5 before and after the latest 6041 firmware to give any comment.

Now the long wait for the VRR and ALLM features to be enabled on both the XH90 and the PS5...

[Lsr101]

Apologies, I thought you had the Series X.  I have both One X & Series X and could have explained the above.  One X is only capable of 60fps so looks like a new purchase if you want the 120fps.

I solved my issue by going deeper into the menu which I wasn't aware existed.

[jed104]

Hey can you tell me have you ever got the ALLM and VRR boxes checked on your one X? I just got a XH90 and they're greyed out. Nothing I've done has changed that including firmware updates and tinkering with settings....

[EmGee313]

No luck on the ALLM or VRR. 

The XH90 does not support those HDMI 2.1 features yet.

Only 4K @120Hz has been enabled in the 6041 firmware.