Lauda89 That's a good point, when I installed the new card, it likely downloaded whatever the newest NVIDIA driver for it is.

    @Seagull Thanks for all the suggestions. I tried using both GPUs with the method you linked, but unfortunately it turns out that only works with 1 integrated and 1 discrete GPU. With 2 discrete GPUs, my only option was the one plugged into the monitor, and if I customized the settings in the NVIDIA control panel, those were ignored.

    I got a new monitor, an MSI G24C4, which has relatively low brightness (VA panel). I'll see how it works with the 3090.

    • MPaz replied to this.
      6 days later

      screengazer I recently purchased an Nvidia RTX 3090, and once I got it set up, I find it gives me eyestrain!

      try the combination "nvcolorcontrol.exe RGB 2" +win10(2004)
      https://www.avsforum.com/threads/2020-lg-cx%E2%80%93gx-dedicated-gaming-thread-consoles-and-pc.3138274/page-21#post-59699820

      at least when I using such a combination, the picture on the test smooth gradient changes on gf1030 (dithering may be disabled/changed)

          glvn Thanks, would you make a shortcut to the file? and then make it -> NvColorControl.exe RGB 2

          • glvn replied to this.

              Quad43 would you make a shortcut to the file

              i use simple .cmd
              echo y|NvColorControl.exe RGB 2

                19 days later

                Thanks, do you re-do this each restart or only once ever?

                This definitely helped!

                • glvn replied to this.

                  Also interesting NvColorControl comes up on Malwarebytes with PUP.Optional.SearchProtect

                  2 months later

                  screengazer Hi, how are you feeling now with your new monitor? I'm also having issues with RTX 3090 on 3 different monitors, but it seems to make it even worse if I change color output format from RGB Full to YCbCr422. So I guess GPU doesn't cause me problems (with RGB Full), but all of these monitors cause it for some other reason. However, it might also be that the GPU is causing the problems - just different color formats use different kind of dithering and thus the symtoms are different (eye strain only VS. eye strain + hard to focus). But... I'm not sure how to test whether it's the monitor or GPU.

                    11 days later

                    Does anyone know why NvColorControl helps so much? This combined with IntelPWMControl (can't figure out which one is helping). Strange if it's the latter given I have Intel properly disabled, removed from Device Manager etc and there's no PWM (based off slow-mo mode on iPhone)

                      Quad43 Does it eliminate your symptoms completely? I'll also try this and would let you know.

                          MPaz I'd say makes 90% better. The best was using Ditherig 1.11 which I can never get running now 🙁

                              Think I made an error by doing the very latest Windows update, 1.12 won't work now either, only 1.14 and it doesn't help as much

                              How did you determine that it doesn't work anymore?

                                Sunspark It won't load - it gives me an error when trying to open it. Only 1.14 successfully runs 🙁

                                  This is very peculiar. Only you have this problem. I wonder if it's a video driver version # issue.

                                  I get "Failed to load a DLL" or "Failed to configure the registers"

                                  Quad43 Does anyone know why NvColorControl helps so much?

                                  I never ever got it to work ever... it always threw an Nvidia API error no matter the version of Win 10.

                                  • glvn replied to this.
                                      dev