See here:
https://forum.justgetflux.com/post/22207

The only thing I can think of is, turn off Night Light (the Windows feature).

18932 seems to be the July 3 insider build (so it's 3mo old if I've got it right?) Are you seeing this on newer ones like 18970?

You can make the screen more warm during the day using the "daytime" slider.

However, staying the same really is not what we're trying to do with f.lux. We think lights should change from day to night, it's the signal our bodies and eyes need to tell day from night.

There are some fixes in 4.111 for fullscreen disable and multiple GPUs.

The latest Windows update has quite a few bugs, and we've been working around them as we find out what they are exactly.

If you click the "overflow" (up arrow) in the notifications area, you can drag f.lux out of there into the main list. Does that help?

Okay we think in the latest version (v4.110) displaylink's "gamma ramp" registry fix should now be fully supported.

I have been looking for such an option, thinking there was. However I was unable to find it. However - I just found it to be under the "disable" menu instead of general preferences. Thank you so much.

Thank you for this - we are following up and it seems like the current situation is not working for both old and new adapters at the same time.

We will fix this, thank you.

@herf I will go back to the old driver, thanks for the quick help for now.

thank you - we will look into this more and fix it.
I don't think we tested sleep enough especially.

Can you please post f.lux options > driver info?
Also please try the new build (4.108) - you can join the beta or download again from the main page.

https://forum.justgetflux.com/topic/6289/to-join-the-f-lux-beta

It sounds like you might have an automatic brightness feature built into your laptop? This can be disabled through Display settings.

f.lux can be uninstalled through Add/Remove programs.

We have some data posted here, so I think you'll find that gunnar removes about 1/4 the melanopic light, similar to running f.lux at 5000K:

https://fluxometer.com/rainbow/#!id=iPad Pro/6500K-iPad Pro&filter=filter/GUNNAR PPK

https://fluxometer.com/rainbow/#!id=iPad Pro/5000K-iPad Pro

We recommend much stronger settings that remove 90% of the light at night.