Kalvus1
Wanted to add for anyone experiencing black screen flickering that disabling "instant game response" on my LG CX solved the issue in all games I tried to run at 4k 120hz. 

That would add a pretty serious amount of input lag to this display. I've found that the black screen flickering is caused by gsync, which is broken on a lot of 'gsync compatible' displays. Just disable gsync for the time being. It's being working near flawlessly for me. 

RavenmasterNot sure why you're setting color to 12-bit instead of 10-bit. 

 
I was under the impression sending the TV the full signal would be best and the CX supported input of 12-bit signal and the TV will adjust to best possible picture to display using the actual signal data.  But sounds like that might not be the case?  do you know what technically happens if you send 12-bit vs 10-bit?
 
I'm by means no expert here, just read up a little bit on the CX and watched a few videos over the months.

Did you have to get the new firmware to get g-sync working?

There are some comprehensive threads at avs
https://www.avsforum.com/.../page-93#post-60131856

and the reddit group tracking the current CX issues, given the C9 got patched last week
https://www.reddit.com/r/...ling_issue_megathread/

Currently the CX is taking the image sent at 120hz 4k RGB/4:4: and downsampling it to Chroma 4:2:2. And the VRR/GSync issue. These are being worked on by LG and will hopefully be out soon.

we arent getting the CX 48" in australia for a while so i went with the 55" and mounted it on the wall and pulled the desk out a bit.

as mentioned, the CX has enough bandwidth for 4K @ 120hz, 10bit, RGB/Chroma 4:4:4, VRR, HDR at 40.1Gbps. Plus its a 10bit panel.

have you guys tried some HDR games at 120fps 4k? so far in order of best to worst;
MS Flight sim 2020 (is the $1 xbox pass still avail?) best HDR implementation i have seen to date, alomost makes me look away
Division 2 - the day scenes are stunning
Ghost Recon Breakpoint - not bad
Horizon Zero dawn - not bad
RDR2 - i had to crank the white balance a lot - a bit meh

i can only read about your stories, hanging out till the KP hybrid drops.
please keep the posts coming as to how good it is etc

I just find it incredible that there are so many people on here who were able to purchase the FTW3 Ultra 3090 - I can't find a SINGLE GPU for sale anywhere. How on earth did these guys get it?
 
This is the most frustrating product launch ever.

Nice, thanks, I've been waiting for these cards for a long time since I got my LG OLED, can't wait to experience 4K120hz with G Sync and HDR

Awesome info Bettc! 

Anyone have experience hooking a 3080 up to a samsung TV? The 2020 QLED models also support 4k/120hz VRR and was wondering if anyone got it working/knows of problems.

Baasha
I just find it incredible that there are so many people on here who were able to purchase the FTW3 Ultra 3090 - I can't find a SINGLE GPU for sale anywhere. How on earth did these guys get it?
 
This is the most frustrating product launch ever.

Bud you are not the only one. I am soooo frustrated.

Very informative thread!