(QN90A) HDR not working with Game Mode on (Windows 10/AMD)

[Ombrenoirz]

Need help about HDR not working when game mode is on. Even if VRR is turned off.

My graphic card is a Sapphire Vega 64 Nitro+ which has HDMI 2.0b ports.

To keep it simple, here's the things I did:

• Certified HDMI 2.1 Cable
• Windows HDR Turned On
• Input Signal Plus Activated
• Resolution 3840 x 2160 @ 60Hz (Because 2.0b limited to this)
• YcBcR 4:2:2 12bit in AMD Settings
• 10bit Option Enable in Graphism Settings in AMD Settings
• VRR Enable
• TV Firmware Updated
• AMD Drivers Updated
• Windows 10 Updates Done

After all this, everytime I put Game Mode on, VRR is FreeSync Premium Pro and HDR is always Off. Why is it like that ? My TV, my GPU, my cable supports HDR. Is it Windows because all HDR options are activated. I'm not sure its a brandwidth problem because even if I test 1080p with 30Hz, its still the same problem, VRR On HDR Off. HDR works only if I disable Game Mode, but the latency is horrible...

This is really driving me crazy, I really want to make it works. Game Mode is really nice and I want to keep it. Thank you in advance.

[Yesname]

Have You tried to set the input to PC on TV? It might not help to keep HDR in Game Mode but input lag will be much less.

[Ombrenoirz]

PC on TV is for wireless connection no ?

[Yesname]

No. You can set the input type in the source menu on the TV. Set the used HDMI input to PC.

[Ombrenoirz]

I found out what was the issue. I think there was a problem with resolution of entry versus desktop resolution. On newer games, i prefer to play 1080p 60fps, so i set my ingame resolution at 1920x1080, on forza horizon 5. In order to make hdr + vrr work in game mode i need to either set ingame res to 4k or down my desktop res to 1080p. Maybe its just the game. Because i tested nfs heat, hdr wont work in both ways. I found this game has some issues with hdr. Tested Mk11 and it worked fine.