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    f.lux reporting 1900K, but screen is still at 6500K.

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    • N
      Naruto_64 last edited by

      I'm having an issue where it isn't working at all, my OS is Windows 10 Enterprise Insider Preview (Build 18305). I also reinstalled it and it didn't work in fixing it.

      1 Reply Last reply Reply Quote 3
      • N
        Naruto_64 last edited by

        I upgraded to Build 18305.1003, and even made sure that the full color range was turned on (I restarted). Same issue.

        1 Reply Last reply Reply Quote 0
        • TwoCables
          TwoCables last edited by TwoCables

          Microsoft Night Light might be enabled and overriding f.lux.

          1 Reply Last reply Reply Quote 0
          • N
            Naruto_64 last edited by

            Windows Night Light is not enabled.

            1 Reply Last reply Reply Quote 0
            • TwoCables
              TwoCables last edited by

              Damn. Hmm. I think (but I'm not certain) I had this happen to me on my computer (and I have Windows 7). If I can recall what caused it and how I fixed it, I'll post again. That's the best I can do at the moment.

              1 Reply Last reply Reply Quote 0
              • N
                numpad0 last edited by

                Same issue here. 10 Pro IP 18305. f.lux launches, stays in the tray, shows notifications, but won't change colors. Windows Night Light isn't working either.

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                • herf
                  herf last edited by

                  Do you have any HDR options on? Or an HDR-capable monitor?

                  1 Reply Last reply Reply Quote 0
                  • herf
                    herf last edited by

                    Also can you post f.lux options > Driver info?

                    One report of this so far included a recent NVIDIA update, so I'm trying to tell whether this is 18305 or NVIDIA.

                    N 1 Reply Last reply Reply Quote 0
                    • herf
                      herf last edited by

                      "Night Light functionality has been impacted by a new bug in this build. Root cause is underway, and we expect to have this fixed in an upcoming build."

                      https://blogs.windows.com/windowsexperience/2018/12/19/announcing-windows-10-insider-preview-build-18305/

                      1 Reply Last reply Reply Quote 1
                      • D
                        davidkaba last edited by

                        I have the same problem after the update W10 Pro & W10 Home Insider preview. Windows Night Light is disabled

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                        • B
                          Blacklight last edited by Blacklight

                          Same Problem. Windows 10 Enterprise Insider preview 18305. Was working fine in 18298. I'm on Intel HD 510 btw, so probably not an issue with NVIDIA

                          1 Reply Last reply Reply Quote 0
                          • N
                            numpad0 @herf last edited by

                            @herf
                            Sorry for a late response! here's the info. Currently it seems to be semi-working, as the color temperature is changing as expected, although hotkeys, disable/enable, exiting f.lux or dimming is not working.

                            Also I posted this in Reddit around the time of my original comment and someone said there "Night Light and F.lux not working in 18305 is a known issue" without specifying known to whom.

                            f.lux 4.86
                            None of displays is HDR capable
                            Night Light is turned off
                            "V223HQL (Digital)" is 3 FHD panel spanned using NVIDIA Surround

                            Intel Corporation 9.17.10.4459: Intel(R) HD Graphics 3000 (20160519)
                            NVIDIA 25.21.14.1722: NVIDIA GeForce GTX 1070 (20181129)

                            V223HQL (Digital), 1440 x 290mm, built 2013
                            Chromaticities:
                            R=0.639648 0.330078
                            G=0.299805 0.599609
                            B=0.150391 0.059570
                            W=0.313477 0.329102

                            sRGB gamut: 100%, AdobeRGB gamut: 64%

                            Generic PnP Monitor, 337 x 270mm, built 2005
                            Chromaticities:
                            R=0.634766 0.336914
                            G=0.287109 0.613281
                            B=0.143555 0.085938
                            W=0.312500 0.329102

                            sRGB gamut: 93%, AdobeRGB gamut: 65%

                            NEC LCD93VXM, 376 x 301mm, built 2009
                            Chromaticities:
                            R=0.640625 0.336914
                            G=0.303711 0.620117
                            B=0.140625 0.073242
                            W=0.313477 0.329102

                            sRGB gamut: 93%, AdobeRGB gamut: 66%

                            Windows Build: 18309

                            1 Reply Last reply Reply Quote 0
                            • herf
                              herf last edited by

                              temporary fix here:
                              https://justgetflux.com/flux-setup4-91.exe

                              We are waiting on MSFT for the real fix.

                              1 Reply Last reply Reply Quote 1
                              • N
                                Naruto_64 last edited by

                                Now the issue came back in Build 18850, but Windows night light still works fine.

                                1 Reply Last reply Reply Quote 0
                                • N
                                  Naruto_64 last edited by

                                  Well, there does not seem to be an issue anymore, but I have noticed something new in Build 18860, where the UAC and lock screen are correspondingly colored by the f.lux colors correctly, which is nice.

                                  1 Reply Last reply Reply Quote 0
                                  • N
                                    Naruto_64 last edited by

                                    Now it is quite the opposite, where f.lux is reporting 6500K, but screen is still at 1900K. It even persists when f.lux is closed, this issue has only shown up once I woke up my computer from sleep mode, and it has not happened until this one time in Build 18865.

                                    1 Reply Last reply Reply Quote 0
                                    • N
                                      Naruto_64 last edited by

                                      I fixed it with a simple restart. Sorry for the inconvenience.

                                      1 Reply Last reply Reply Quote 0
                                      • F
                                        f0ff886f last edited by

                                        I can confirm that coming out of sleep mode and flux breaking happens for me as well. By breaking I mean that the screen temperature just doesn't change. Flux v4.100 A reboot helps.

                                        NVIDIA 25.21.14.1722: NVIDIA TITAN V (20181129)

                                        Generic PnP Monitor, 518 x 324mm, built 2018
                                        Chromaticities:
                                        R=0.660156 0.332031
                                        G=0.301758 0.613281
                                        B=0.150391 0.063477
                                        W=0.313477 0.329102

                                        sRGB gamut: 100%, AdobeRGB gamut: 69%

                                        Generic PnP Monitor, 518 x 324mm, built 2018
                                        Chromaticities:
                                        R=0.660156 0.332031
                                        G=0.301758 0.613281
                                        B=0.150391 0.063477
                                        W=0.313477 0.329102

                                        sRGB gamut: 100%, AdobeRGB gamut: 69%

                                        Windows Build: 17763

                                        1 Reply Last reply Reply Quote 0
                                        • herf
                                          herf last edited by

                                          Ok - I am running 17763 on the NVIDIA "1735" build but I'm on a Pascal and not a Volta series.

                                          Does moving the sliders within f.lux stop working entirely? I would recommend trying a newer driver version, but I don't know which one. :)

                                          F 1 Reply Last reply Reply Quote 0
                                          • F
                                            f0ff886f @herf last edited by

                                            @herf Moving sliders "physically works", meaning I can grab the temperature slider and move it back and forth, but there is no effect on the screen at all.

                                            I updated to the latest driver, 425.31, for now it seems Flux is working through a sleep (I didn't even restart between the driver update, and the following sleep). Will keep you posted!

                                            1 Reply Last reply Reply Quote 0
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