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

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    • N
      Naruto_64
      last edited by

      Windows Night Light is not enabled.

      1 Reply Last reply Reply Quote 0
      • TwoCablesT
        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.

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

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

            1 Reply Last reply Reply Quote 0
            • herfH
              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
              • herfH
                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

                  1 Reply Last reply Reply Quote 0
                  • 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
                      • herfH
                        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
                                  • herfH
                                    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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