Compatibility Sony TVs and NVidia RTX 3000\4000 graphics cards.

[lapinv]

I have some problems with connection my TV Sony XR-65X90K and RTX 4080 through HDMI.

I tried to connect cable to all the HDMI ports, but it doesn't work. Furthermore, I tried to change HDMI mode on HDMI ports and it gives some result. Sony HDMI modes:

• Standard - doesn't work
• Enhanced - doesn't work
• Enhanced (Dolby Vision) - doesn't work
• Enhanced (VRR) - works, but the picture isn't perfect.

If I use the VRR HDMI mode on TV, I have a picture, but:

• I can't use full screen mode when I play games.
• VRR mode disables Local Dimming.
• The picture has a washy and faded picture.
• Some games, for example Outlast, have graphics artifacts in shadows.
• HDR looks like it doesn't have enough brightness.

It's just beyond frustration when you buy a quite high-end TV, you paid a lot of money for all the cool functions and modes BUT it works only in one mode and not even as it should work.

UDP:
I add photos with issues.
HDMI modes:

Game Outlast has graphics artifacts:

Broken color depth:

And I add a link to the forum where people discuss the same problem.
https://www.avsforum.com/threads/hdmi-is-broken-on-newer-sony-tvs-with-nvidia-rtx-3000-4000-series-c...

[lapinv]

UPD2:

I installed update for Sony TV v6.6474 and the new driver for Nvidia Graphics Card v528.49.

Sony TV:

Asia

https://tv.update.sony.net/OND/2021/as/main/PS212795/sony_atvotafull_2020_1606474100_paa_auth.zip

NА

https://tv.update.sony.net/OND/2021/na/main/PS212793/sony_atvotafull_2020_1606474100_naa_auth.zip

EU

https://tv.update.sony.net/OND/2021/eu/main/PS212794/sony_atvotafull_2020_1606474100_eua_auth.zip

After that, all the HDMI ports and modes started to work. However, sometimes the sound disappears. And I need to reset the TV to fix. It's a random issue, I don't know what it depends on.

[SkyNet404]

Is this related to G-sync at all? I mean have you disable it to test it? 
Also about the ray tracing, is it enables/disabled? Cause I honestly don't know if the TV is able, or can handle them. 
Before the latest update they used to struggle with VRR and local dimming, so throwing a 4000 series to it might be an overkill 😅.

After all they're meant to function more with consoles than a full-fledged gaming PC.