f.lux does not work with my LG 4K monitor

  • I used to have a 23", 1080P monitor and worked good.
    I got a new LG 32", 4K monitor and since then, f.lux does not work.
    I have installed the drivers for my monitor and even uninstalled and reinstalled f.lux numerous times, and still does not work.

    Any suggestions what I can do to get it to work?

  • Can you post f.lux options > driver info?
    Also, does the new monitor use HDR mode in Windows?

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