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    f.lux resets color temperature when laptop lid is closed

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    • K
      korg250 last edited by korg250

      Hi.

      I am using f.lux v.4.33 on a Thinkpad T440s with windows 10 Pro (version 1703, build 15063.332). My laptop has an Intel i7-4600U with Intel HD Graphics 4400, using the latest drivers.

      When I close my laptop lid - and thus, turning the screen off - and then open it (screen on), my screen color temperature is reset to daylight. Obviously, I can only notice this behavior once the color is 3400k (halogen) or below. This bug is kinda annoying, since the screen is suddenly very bright and white right after I open my laptop.

      If, after opening the lid, I stay in the same window, the color stays as daylight. It is only back to normal (as set by the schedule) after I change to another window. Changing between tabs in a browser does not trigger f.lux to fix the color. The color is fixed at once, not slowly.

      Do you guys have any clues on why this is happening? Please let me know if I can provide further information or diagnostic.

      Thanks!

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

        thanks - we will look at this some more. it does "forget" the setting on wake, but we are supposed to be detecting this and fixing it.

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

          Can you post your video driver version also? Am running similar machine but with the "normal" Intel driver and cannot make it fail.

          1 Reply Last reply Reply Quote 0
          • K
            korg250 last edited by

            It's version 20.19.15.4531.

            Thanks.

            1 Reply Last reply Reply Quote 0
            • D
              disqQ last edited by

              This is basically the same as: https://forum.justgetflux.com/post/13522

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

                ok I think I got it.
                I was checking for "standby" but simply turning off the screen was important to watch for, too.
                next build has the fix.

                K 1 Reply Last reply Reply Quote 2
                • D
                  disqQ last edited by disqQ

                  4.34
                  still happens for me

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                  • K
                    korg250 @herf last edited by

                    @herf Thanks. I'm on 4.34 now and screen just blinks with daylight color and moves itself back to the current color. That's a fix for me, but maybe some else would expect the correct color without the blink.

                    Thanks!

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                    • herf
                      herf last edited by

                      Yes, this is the case on Creators update if you do not reboot after installing. If you reboot, it should be somewhat better.

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                      • D
                        disqQ last edited by

                        Why does my posts regarding this issue always get ignored since i reported it back almost 2 months ago?!

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

                          @disqQ we fix problems we can reproduce, and we haven't reproduced the NVIDIA issue yet. Can you keep us up to date with NVIDIA issues in another thread? Driver versions, and if any driver versions have worked previously?

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