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CAC-1080, can i force VRR through hdmi at 1440p@120hz? from a 2080ti to a LG C9?

CAC-1080, can i force VRR through hdmi at 1440p@120hz? from a 2080ti to a LG C9?

Updated on 10-01-2025 in Adapters and Cables

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Pittyh 5 0 on 01-08-2019

Hi,

i have a LG C9 with hdmi 2.1 ports, the TV is capable of 4K@120hz over hdmi2.1

I also have a 2080ti which has hdmi 2.0b

If i connected them with a CAC-1080 and used nvidia control panel to turn on adaptive sync as below.

https://nvidia.custhelp.com/app/answers/detail/a_id/4768/related/1

There is a feature which enables adaptive sync output over displayport

Can i get 1440p@120hz with adaptive sync (VRR) working?

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CLUBBIE 0 0 on 02-08-2019

Hello Pittyh,

Thank you for your question. The answer is no i’m afraid, Adaptive sync at 1440p@120 will not work.

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Pittyh 0 0 on 02-08-2019

Ok thanks mate, hopefully the displayport 1.4 to hdmi 2.1 adapter you “may” or “may not” be working on will fix all the issues. 😛

Thanks.

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magicarpet 0 0 on 06-08-2019

VRR requires HDMI 2.1

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CLUBBIE 0 0 on 06-08-2019

Hi,

The option to use VRR is not possible with the cac-1080 due to lack of bandwith.

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ChristineIverson 0 0 on 10-01-2025

It’s great to see that you’re exploring HDMI 2.1 capabilities! Just a heads-up, while your 2080 Ti supports HDMI 2.0b, you might want to consider how to maximize your gaming experience. If you’re into classic games, have you tried the Pacman 30th Anniversary game? The vibrant visuals shine even in 4K! Connecting using the CAC-10 might also help enhance gameplay. Happy gaming!