@herf said:

If you can, follow the instructions here to disable our profile writer (requires some mucking around in Terminal):

https://justgetflux.com/news/2014/10/28/profile.html

My thought is that you may have an app that is using an incredible amount of CPU when we change the profile (this isn't normal but it is possible), so disabling the profile writer may help find the problem.

This seems to have done the trick, battery drain has stopped.

@lorna single GPU model. MacBook Pro (Retina, 13-inch, Early 2015)

@Oclair yep the team really doesn't like this. It's why the EULA SPECIFICALLY says to not repackage this or redistribute it. For this right here.

Brightness, distance from your eyes, and color all have an affect, as well as what time you're using the screen and for how long you use it! I would suggest you adjust the screen to what feels comfortable to you and after you get used to it try adjusting it again to see what you like. I like it when my screen looks like a piece of paper in the room I'm in.

Hi, I found this article to be quite useful. I took the values that they produced and carried them over to illustrator. I then used those colors as a color burn setting over my original colors. You might have to tweak them just a bit to get the exact color saturation you are looking for, but it does work. I hope this works for you!

@lorna I've got MBP 15'' from 2015, the version without extended GPU.

for what you are telling us seems the problem is cause for flux itself and not by the MacOSX automatic brightness.

Interesting. :-/

@Elhem-Enohpi Wow, you've really got it down! I'm very impressed. I wonder just how many people do things like this, I wish more people were aware of the effects, but until then, this is still awesome!

@lvpjl look near your clock for an outline of the f.lux icon!

I have the same issue! Running OS X El Capitan on a 2013 MBP 13" retina.

Movie mode is definitely not almost the same as having f.lux disabled, or set to 6500K. I think it's basically 4000K but a little brighter overall. It's very close to the 4100-4200K setting. You have to look very hard to see any difference. If you set your Daytime and Sunset to 4100K, and Bedtime all the way up to Sunset Only, that should be close enough for "permanent movie mode".

@theejimpee It's not available yet, but if you click the search icon on the forum and search for "single display" or similar terms, it has been discussed. The team is very busy, and it may take a while, but there is probably a good chance that it will be implemented in the next version.