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    Dual monitors, F.Lux affects one but not the other.

    Windows v3
    nvidia dualmonitor windows 10
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    • C
      Chads last edited by

      I have 2 monitors and F.Lux affects one but not the other. There seem to be a few threads asking whether monitors can have separate profiles in F.Lux, and it seems I have acheived this by mistake :(

      Installed Windows 10, and now F.Lux does not work on my second monitor. If I go into F.Lux and run the "24 hour preview", I can see that one monitor (Display Port) changes colour temperature and the other (HDMI) does not. I did not have this problem under my old Windows 7 64 install.

      F.Lux v3.10
      Windows 10 Pro 64
      Nvidia GTX760 card with 355.60 driver (current)
      Dell monitor connected by Display Port
      LG TV connected by HDMI

      Any help would be appreciated.

      C 2 Replies Last reply Reply Quote 1
      • C
        Chads last edited by

        Last night I noticed that F-Lux appears to work on the non-working monitor (HDMI) when it is playing a full-screen game. It stops working when I return to the desktop.

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        • C
          Chads last edited by

          Nvidia driver updated to 355.82; issue persists.

          As no one else has responded to this tread, I'm wondering whether anyone else is affected by this issue?

          Any other users? Are devs working on this? Am I alone?

          Please post if this issue affects you.

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          • M
            mandyrs last edited by

            I have the same problem on Windows 7.
            I used to have a desktop with 2 screens and no problems with that all.

            My desktop was replaced by laptop and still using 2 external screens with it, but somehow flux is now only working on my laptop screen and not anymore on the 2 external screens.

            It's horrible and once again I leave the office with a headache everyday.
            Already searched around the internet for solutions, but nobody seems to have one :(

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            • C
              Chads last edited by

              BUMP

              I have just reinstalled Windows, Nvidia drivers and F.Lux. Problem persists.

              Again requesting some kind of acknowledgement...

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              • M
                milanvo last edited by

                I have exactly the same problem.

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                • M
                  mikeD last edited by

                  I have this problem as well.... Almost. on mine, they are affected, but to different degrees.

                  Windows 10 on Dell E series Docking Station. the dock has 2 DVI ports.
                  Intel HD Graphics 5500 display adapter.

                  I have 2 Dell 1707FP monitors. both are set identically (reset to factory defaults) the primary monitor is WAAY redder than the right monitor when f.lux is enabled.
                  when I disable f.lux, the monitors again have the same identical look.

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                  • C
                    Chads @Chads last edited by

                    @Chads
                    BUMPING as problem presists, and is also mentioned in these threads:

                    https://justgetflux.com/forum/topic/231/windows-10-second-screen-doesn-t-change
                    https://justgetflux.com/forum/topic/222/flux-not-working-on-second-monitor
                    https://justgetflux.com/forum/topic/328/windows-10-with-3-screens-one-screen-doesn-t-work-with-f-lux

                    Asking again for an acknowledgment from devs?

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                    • R
                      ReCrunch last edited by

                      I have the same problem. My Main monitor (connected through hdmi) is working excellent with f.lux. My secondary screen (connected through a hdmi with vga-adapter) however is not working with f.lux.

                      I heard it helps to 'mention' the admins so I'm just gonna type @lorna and hope for the best :)

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                      • C
                        Chads @Chads last edited by

                        @Chads F-Lux working on both screens tonight! No changes to PC that I'm aware of. Last GPU driver update was over 2 weeks ago. I'll post on any changes, otherwise consider the issue mysteriously resolved...

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                        • A
                          Anthropicus last edited by

                          If you figure it out, let me know, because it's still doing it for me.

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                          • herf
                            herf last edited by

                            Two separate issues in this thread:

                            1. HDMI stopped working in Windows 10. This means all color controls are not working. LOTS of stuff changed in the Windows 10 driver model, and people online are saying NVIDIA has been slow to reach feature parity on Win10. I would expect this one to resolve in a future driver update.

                            2. Docking station troubles -- this sometimes involves DisplayLink (USB monitor) and currently there is no fix for this, since this adapter does not support color profiles.

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                            • C
                              Chads @herf last edited by

                              @herf Thanks for responding herf. When F-Lux works, I love it.

                              Unfortunately after my "it works" post of last week, it reverted to its not working state the next time i used the monitor. I don't know why it began working, or why it stopped again.

                              So, regarding HDMI / F-Lux. Are you saying this is an Nvidia issue, and that I need to wait for a fix from them? Is F-Lux not working for all users with a combination of Nvidia drivers and HDMI output, or am I just unlucky?

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                              • C
                                Chads @herf last edited by

                                [@herf Okay, so I just went into Nvidia control panel / Set up multiple displays, then clicked on "Clone source", and switched it from screen 1 to screen 2.

                                The screen with F-Lux working on it switched from my Display Port monitor to my HDMI one. So instead of F-Lux on the DP and not on the HDMI, it was the other way round.

                                I have disconnected the DP cable, and F-Lux works on the HDMI screen, then reconnected the DP and it stops on the HDMI. Plugging or unplugging the HDMI screen does not affect Flux on the DP screen.

                                This would suggest that it can and will work on Win10/Nvidia with HDMI, and one of either DP or HDMI, but not both at the same time.

                                Not sure if related, but I have also noticed that the "Adjust video colour settings" are greyed out for the monitor that F-Lux does not work on, whether that's the DP or the HDMI.

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                                • S
                                  smithsd last edited by

                                  I am having the same problem. f.lux is working on my primary monitor, but not on my secondary monitor.

                                  Windows 8.1 Enterprise, 64-bit
                                  NVIDIA GeForce GTX 745 with driver version 358.91 (up-to-date)
                                  2 identical Dell monitors connected directly to desktop: primary connected via DVI, secondary connected via VGA

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                                  • R
                                    Remi89 last edited by

                                    I'm having the same problem on my dual monitor setup, it's only working on my main monitor and not the 2nd.

                                    Windows 10.0 (build 10240)
                                    Nvidia GTX780 v358.91
                                    2 monitors connected via DVI-D (main) VGA (2nd)

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                                    • M
                                      Marenghi last edited by Marenghi

                                      I'm also having trouble with my dual monitor setup, however, my second monitor is the one that works all the time (HDMI) and my first (display port) will not work with flux until I manually start the program.

                                      the issue arises when the computer has been asleep or the scrensaver has been on. so far it's consistent that it's always the display port monitor not working after sleep/screensaver.

                                      I am also using an AMD GPU.

                                      edit - the DP monitor is also a 144hz monitor where the HDMI is your normal 60hz

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                                      • C
                                        Chads last edited by

                                        Mine reverted to working about 5 days ago.

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                                        • herf
                                          herf last edited by

                                          Our Surface Pro started not working with "mirror" mode (it's all Intel, not NVIDIA) - if you use "extend" mode it works fine.

                                          I think we're just getting weekly driver updates for Windows 10 right now, and everything will settle down eventually.

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                                          • James Whittet
                                            James Whittet last edited by

                                            I'm having the problem of Flux only working on my Main display and not on my second monitor, but I am running Windows 7 and am not using HDMI or any docking station so I don't understand why this would be happening.

                                            Windows 7 Ultimate SP1
                                            NVIDIA GeForce GT610 v359.00
                                            2 monitors connected via Dual Link DVI-D (Main) and VGA (2nd)

                                            Tungsten_smooth 1 Reply Last reply Reply Quote 0
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