Yes if you pick any other preset, it will take you out of this.
Also there is a "Classic f.lux" menu that you can uncheck to do it by hand.

Having the same problem. Did you ever find a solution?

@fnhanks yes that's right. The only detail is: whenever you re-calibrate the screen, make sure to quit f.lux first and reload it after.

Thanks for the review of the problem. I’ve been getting similar problems during the last few weeks, and I didn’t know what to do.
I have tried to fix the problem myself, but I am not a professional, and I think I have made things even worse. My light bulbs are from vont.com, and I decided to contact them and ask for help. They answered quickly and offered to send me a pair of new smart bulbs for free instead of trying to fix the old ones. They said that this case was guaranteed and they had to deliver me new bulbs instead.
It was a nice surprise from them.

@5357ziv There was a post here with a reply from f.lux that they need to get an HDR monitor to test out issues there. And that a user said they disabled the HDR setting in Windows 10 and it seemed to hide the issue for them.

I'd guess your built in laptop screen is standard color and brightness, and the 5k screen is wide gamut and HDR.

One question I'd have...is SnagIt supposed to get exactly what you see or what would be shown normally without f.lux?

It'd be nice to get the normal UI, but I can imagine it not knowing how to remove whatever f.lux does to the screen. I have no idea if there is an API to allow changing what users physically see without altering what other programs read (for screenshot grabs).

@sleepwakecycle (Random internet person here who has used F.lux a lot)

Don't think their UI lets us do that. I have the same issue in my location. Using 8am allows an hour or two of less color shift before really mangling the colors. But 6am is a straight shot.

I agree you're not alone in wanting that much control. I'll bet night shift workers would benefit from being able to force changes outside of the normal day/night cycle (that they likely block outside light from windows anyway). Wish this was Open Source so users could add that.

@macbain

Hi macbain, I too am trying to apply the flux filter to my Samsung TV using AirPlay however the flux settings are not carried over and the TV screen is bright enough to wake up the neighbors! Wondering if you may have found a way to wirelessly carry over the flux settings? Thank you for any thoughts you be be able to share. Steven

@herf

Hello. So sorry for not replying... Chronic migraines will do that to a person...

What is the "expand color range" menu item? Is it in the Options screen? It can't be the "expand slider ranges" check box. Under the color menu there are just special effect options...

Heres my driver info. I have an old Thinkpad W530, it has a wide gamut monitor. If I use certain color profiles with this monitor then when f.lux ramps down the color temperature then it seems to maintain the white point better, but at the trade off of not having as intense of color.

I have three profiles I am playing with, the best one with the deepest colors is the one that even on the Sunlight setting if I click the box to use the internal color table then I can see that the white point is moved way into the yellow...

NVIDIA 25.21.14.2678: NVIDIA Quadro K2000M (20200529)
Intel Corporation 10.18.10.5059: Intel(R) HD Graphics 4000 (20180816)

LCD 1920x1080, 344 x 193mm, built 2009
Chromaticities:
R=0.675781 0.314453
G=0.214844 0.665039
B=0.140625 0.069336
W=0.313477 0.329102
sRGB gamut: 102%, AdobeRGB gamut: 91%

Unlimited gamma ramp=1, Internal ramp=0
Monitor 1 on Intel(R) HD Graphics 4000
Has VCGT profile=1, Gamma Ramp works=1

Windows Build: 19044.1620
0

Same behavior if you disable f.lux for a specific app disables f.lux across all monitors now :(

@moomoolan we do have a feature for this and it's only available via a hotkey: windows+End will toggle it on or off. Possible to do accidentally?

@ersanzop
how to resolve it.? . .

Just discovered: disabling Windows HD Color option returns this to proper f.lux color, i.e. virtually the same as the other 3 monitors.

Screenshot 2022-03-31 223852.png