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    Screen strobes when going from daylight to sunset mode

    Windows v4
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    • G
      gwp176 last edited by

      When f.lux changes to sunset mode, the screen strobes between day and sunset (Transition set to "gaming: very fast") until I go to options and change modes - ie cave painting to recommended colors and then back to cave painting

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      • herf
        herf last edited by

        Can you please look for conflicting apps? Do you use a Lenovo device for instance?

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        • G
          gwp176 last edited by

          No Bluetooth or Lenovo devices. How else can I search for conflicting apps?

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          • herf
            herf last edited by

            Please post f.lux options > driver info... that will give us a place to start!

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            • G
              gwp176 last edited by

              This post is deleted!
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              • G
                gwp176 last edited by

                This post is deleted!
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                • herf
                  herf last edited by

                  It's also text so you can just paste.

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                  • G
                    gwp176 last edited by

                    Thanks...

                    NVIDIA 26.21.14.4223: NVIDIA GeForce GTX 960 (20200131)

                    Acer T232HL, 509 x 286mm, built 2017
                    Chromaticities:
                    R=0.644531 0.330078
                    G=0.315430 0.620117
                    B=0.154297 0.064453
                    W=0.313477 0.329102
                    sRGB gamut: 96%, AdobeRGB gamut: 67%

                    Winlimit=0, 1
                    Monitor 1 on NVIDIA GeForce GTX 960: VCGT=0 gamma=1

                    Windows Build: 17134.885

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                    • herf
                      herf last edited by

                      Okay, in f.lux options can you try turning on "Always use windows internal color table" to see if this helps?

                      17134 is EOL'd by Microsoft, so I may have missed a test case there.

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                      • G
                        gwp176 last edited by

                        I can't find the option "Always use windows internal color table".

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                        • G
                          gwp176 last edited by

                          Just as an update, sunset kicked in, and f.lux worked as it should. There was no more strobing!

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                          • G
                            gwp176 last edited by gwp176

                            Well, just over two hours later the strobing started again, out of the blue. Went and kept changing the color schemes a few times (8?) and settled on Recommended Colors and the strobing stopped, although the selection says Custom Colors.

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                            • herf
                              herf last edited by

                              Can you see if Windows Night Light is diabled also?

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                              • G
                                gwp176 last edited by

                                Thanks for the reply. It was enabled... It's now turned off so will see in 10 hours or so.

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                                • G
                                  gwp176 last edited by

                                  Well, after 2 nights all is good. It appears that having Windows Night Light enabled caused the problem. Since disabling this option, all f.lux works as it should. Thanks for the help.

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