Ok so I tried two other DLSSg files and still no HDR, renaming it is the only ways to get HDR working.
The game has version 1.0.2, I tried 1.0.3 and 1.0.4 (found in today's Portal RTX update).
That's fine, no need for frame generation, the 4090 can handle 4K120 with ease anyway 🙂
After todays massive 9GB+ update the same problem persists.
Need to delete or rename 'nvngx_dlssg.dll' file to make HDR work on RTX 4000 cards.
I do not know what is causing this as other games seem to use DLSS3 FG with HDR just fine (ex Cyberpunk 2077).
At least make HDR work with DLSS3 FG disabled on the in-game settings if it can't work for some reason with it on. Now we need to fiddle with files :S
