@herf Sorry to open up this old topic again, but I am still having the same issue. Do you have an update on this?

@janat08 Alt+Shift+Page Up (and Alt+Shift+Page Down).

If this doesn't work, then you can enable this keyboard shortcut in the f.lux Options.

This keyboard shortcut will enable you to adjust the color temperature whenever you want.

@sourdough05 yes it's important to calibrate displays. I can imagine doing some more of it in the future.

The "best" solution for this is to use a hardware calibrator like the i1display or the Spyder. These can account for not just the chromaticity of the whitepoint (like you describe) but the particular changes to render RGB properly also, and also they can make the "gamma curve" correct so that intermediate tones look right as well.

There are some apps that let you do this without the hardware, like QuickGamma: https://quickgamma.de/indexen.html and anything that adjusts ICC/ICM profiles like that tends to work with f.lux

@fluxr0x I would check first that "disable for app" is not turned on for VLC.

Otherwise it may be turning on a discrete GPU in your machine that resets the color settings, and the usual fix for that is to update all the video drivers. You can post f.lux options > driver info if you would like us to look.

@password you could try using our "LAN API" to post to a webserver that controls the keyboard. A simple python script could listen and f.lux would talk to it.

Can confirm the same issue still applies as of 2023.

f.lux version 4.124.0.0 1 Personal Edition

2x Acer Nitro VG280K 28" 4k 60Hz (8-bit RGB SDR)

I'm still having problems with the Darkroom mode....when I try to enable it, it immediately quits and returns to whatever the current F.lux setting is. I'm hoping there will be a Darkroom update soon.....

@eenoramic is it possible you were using our soft-dimming features before disabling? These are accessed via Alt+PgDn or Alt+PgUp, and we don't make them as prominent right now because they mostly appeal to desktop users and people who are sensitive to flicker on laptops.

@Alex5525 we do maintain three presets in this version - one for when the sun's up, another for the early evening, and another for right before bed. You can make the second two the same, just move the slider as you like.

@Alex5525 we are not seeing your screenshot. Can you try again to post it?

It seems like you may have a timezone or location issue - timezone is set by Windows and not f.lux.

To be sure your time settings are correct, check the webpage https://justgetflux.com/timesync.html

@itssfchris these settings are all in the "Disable" menu and it should be clear how to toggle them off once you find it!

@justsomebody for #2 yes we notice when timezones change and adjust things then, but this doesn't account for north-south travel.

We have done some tests with looking for changes to WiFi networks and the like, but it is a pretty noisy signal and so it requires us to chat with a server and becomes a privacy issue, so we have not shipped it, because we don't want to track anyone's location in detail.

@hooddy Chrome is kind of a special case because they install a system-level service to handle updates. Most apps do not have this kind of privilege.

As it is, we often need to make rapid updates when Windows or drivers change, so only our corporate build installs to Program Files.

@PingableUsername this is almost certainly Intel's DPST and not f.lux. See if your manufacturer provides a way to disable it.

We sometimes do disable it because it interacts badly with our more extreme settings, but we do not enable it.

Make sure you're using the latest version of f.lux. Sometimes, updates include bug fixes and better compatibility with newer operating systems like Windows 11.