@zero00 we have had better luck with DisplayLink or native (thunderbolt or displayport) connections. I should ask if this monitor has worked in the past for you with dimming controls?

@VitaAurum777 this is in our very-beta root-only build for Android, but it is not really maintained for current devices.

@vsrawat Just use the '/noshow' parameter [source].

@Luh-Geekem

Why aren't you using the Page Up and Page Down keys that are above the Arrow Keys instead? So above the arrow keys there's Insert, Delete, Home, End, Page Up, Page Down.

@Lions23 open f.lux preferences and look for the word "Location:" in that panel

@WhiteColorQuestion f.lux does load the system profile to set the "normal" white mode it shows during the day, but it should leave no lasting effect if you uninstall & reboot. Are you aware of any other software that might have reduced the brightness previously?

@Shaylala try this - https://justgetflux.com/news/pages/macquickstart/

@herf
Thanks, I see that now but I didn't notice it before you mentioned it.
What does the Disable for a specified program do? Does it set the display to 6500K and is that what the Return to Full Brightness does?

Do all these options do the same thing? Or can the colour temperature be at 1900K when "Return to Full Brightness" is enabled? It's not very clear what the keyboard shortcuts do. I would think that if the colour temperature was set to 1900K then Alt+PgDn would only reduce the brightness from 1900K and go up to 1900K maximum. That would be different to Full Brightness would it not?

@flux_onetimepost I am wondering, whether some old version of f.lux would work in such a manner that we are able to manually specify the screen colour without extra smarts from the software?

@duskdevilza usually this is due to a USB connected monitor (which does not have full color controls). Sometimes these notes can help:

https://forum.justgetflux.com/topic/4653/tinted-screenshots-or-fullscreen-apps-and-games-missing-f-lux

@herf I gave that a shot and its still missing. Yep, its def. running. It shows in the activity monitor and the color shift still works. Actually, the reason I posted last night is because I was editing photos and I wanted to make sure I got the color correction right so I wanted to turn it off but couldn't until I finally restarted the computer.

@TeaTeacher you're saying disable by app is not working in Sonoma? It does seem to be working in Sonoma 14.4 here - which version are you using?

@gtfhercules f.lux functions as a "VCGT" loader, so any part of the profile in this header will be loaded and preserved. If this is not working, could you please send it to email - support at justgetflux.com?

@accessolutions our corporate build requires activation but transmits no personal information to do it. The license is per-machine.

@influxensa first, yes it should do nothing!

I'll be slightly more correct than our FAQ:

Monitors use a chromaticity called "D65" which has a tiny bit more green in it than 6500K does and is also around 6504K, and basically every display in the world is calibrated to show this color as white. When you ask f.lux to use 6500K it really uses D65....but that's why it does "nothing".

@reina3 These color effects are not on the "planckian locus" meaning there is no CCT that matches them exactly - this one is very close to 6400K but not really! We should allow scheduling these in a future version.