F.lux Not Working on 2nd Monitor



  • As the headline says, f.lux is only have an effect on my Macbook's primary screen. I have a USB3.0-only (no HDMI) secondary monitor plugged in that I can't seem to get f.lux to work on.

    If it helps, my Macbook is a 2020 running Catalina 10.15.6, and the second monitor is an Asus MB169B+.


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