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how to get 4k 120Hz on LG C1 OLED under macos?

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Mar 15, 2017
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Motherboard
Acrock Z390 Phantom Gaming-ITX/ac
CPU
i9 9900k
Graphics
RX Vega 64
Mac
  1. iMac
  2. MacBook Pro
  3. Mac Pro
Mobile Phone
  1. iOS
Hi folks, I was wondering if there is any way to achieve 4k 120hz under macos in a hackintosh?

I have done some research and it seems that the HDMI is only 2.0 even under the RX6900XT and other navi 2x GPUs.

There are some DP1.4 to HDMI2.1 adapters which depend on DSC, but it seems DSC on macOS is broken since Big Sur. And I also do not see anyone reporting that they can get 4k120hz successfully via a DP port and an adapter.

So, is there any way to make it possible to get 4k120hz under macos for a HDMI only monitor? Thanks.
 
i will buy LG 42 C2 OLED TV and want to it get 4k120hz.

lg 42 c2 support DSC, but not sure whether it can ge 4k120hz via dp1.4 to hdmi2.1 adapter/cable.

i also have the same question.
 
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