Did I trick my XSX to do DV 120hz on my LG CX?

Same problem with XSX, LG Cx, Denon 1600h

It may be related to the MEMC as mentioned above....the LG CX is different as it has a native 120Hz mode

Do you have Dolby Vision enabled? If so, try disabling it as most TVs can't support DV and 120Hz at the same time....the higher end companies (LG, Sony etc) are slowing rolling it out but, I believe, only 2021 models so far

In the short-term, you could just leave it at 60Hz as I don't think any game really utilises the 120Hz fully yet. Might be worth dropping TCL a message to see if they can offer some solution or tell you if a firmware update is in the works:

https://www.my-tcl.com/en/contact?type=assistance

Pretty sure its down to LG to solve.

to be fair though, as far as i know, its only Battlefield 1 and Mass Effect Andromeda that take advantage of DV. May aswell just wait for the series X.

now i just use the built in netflix app on my CX if i want to make good use out of DV.

use FreeSync Premium for games.

To achive 4K at 120hz your TV needs to have HDMI 2.1 ports and supports 120hz, such as the LG CX TV,

The bandwidth limit of HDMI 2.0 will only allow 4K at 60hz.

Right now I’m on a 42 inch Samsung QLED 4K HDR set, but before the Series X is out I’m planning on upgrading to the LG C9 or CX in 65 inch. I need that HDMI 2.1 120hz OLED goodness in my life.