Thanks, @herf. All that does, though, is make the sunset level almost as bright as daylight with a huge dropoff at the bedtime level. It doesn't change the length of the sunset period nor when it starts.

Thank you! That registry setting has solved both of my problems.

Now if only I could manually change monitor settings independently... Eg. secondary in "Movie Mode", primary in normal f.lux.

I appreciate the work you've put into a program which is free to use, along with the helpful and prompt support :)

Thanks for this note - we designed the timing for a totally different feature, and what you're saying makes sense.

The timing is designed for "disable by app" and people who alt-tab from Photoshop to email/chat and back a lot....so in that case going too fast would be not very good.

But in the case you're describing, going from a dark video to a white webpage, we should do better.

All the Hue lights work well with f.lux.

You're just responsible for turning them on and off.

nobody has had this problem before? Am I really the only one? I can't understand why video playback and Chrome struggle so hard with f.lux. I have to turn off f.lux to watch a video it's so bad.

Ok, then what is your "earliest wake time" set to?

You can also just switch to "Classic f.lux". That disables the bedtime mode so that the only two modes for color temperature changes are daytime and night.

@herf alright, I'm terribly sorry; i'll do one more test and see if it's fixed...

So much this. In the old v3 i liked the very slow and gradual dimming effect i got so that when it was almost bedtime flux would be doin it's thing in full force, now it's just annoying when it's three o clock and it just switches on almost directly. the only solution i can think of right now would be to set my location in some other country further south.

The same for me...

Does anyone have any ideas on how to fix this?

I thought the developers would be more interested in looking into this by now, considering that version 4 has been out for quite some time and the fact that there are other users who are also having similar issues.