Do you have an antivirus running that might have f.lux as a false positive?

And can you find an update to your display drivers?

If added, there’s another feature that should be optional.
I have .exe’s open all the time, with this, it would never dim down.

DisplayLink has no support for color calibration, so f.lux can't make changes to DisplayLink monitors. Unfortunately, you can only use f.lux today on displays that are directly connected to your computer. (e.g., it usually won't work over remote desktop either.)

Not to be overzealous, but if you do make a change,
could it also include an optional Sun rise function ?

I'm surprised you all aren't asking how to get just one to dim!

What GPU do you use -- visit it's control center and look for "allow other programs to change color settings" or something like that.

Update your drivers today, if you haven't done so in the past week.

thank you for this, it works like a charm!
I love it!!!

This is normal, and the only way to not see it quite so much is to get a better display.

Yeah, I would love to be able to choose any color temperature regardless of what time it is. I don't have a consistent day/night sleep schedule either, and there are times where I will be going to bed right in the middle of the day. I first block all incoming light from outside, dim my room lights, dim my monitor all the way, and then I choose 2700K and then I dim f.lux so that it can go warmer than 2700K. Then I continue doing what it was I was doing on my computer for an hour or two and then go to bed.

Right now, f.lux is very limited because if I want anything warmer than 2700K, then I'm forced to choose either 2300K, 1900K, or 1200K.

By the way: the Lighting at Night menu has lower-case k's. They should be capitals.

What I recommend is, changing your color temperature to match your Day setting until you're done playing the video game.

Alternatively, you can also just exit f.lux and open it back up when you're done. Leave yourself a note somehow though until this becomes an automatic habit for you.

boboprf: I don't know if timpster is on the right track, but he meant Ctrl+Shift+Esc is an alternative way to open Task Manager. Ctrl+Shift+End was a typo + brainfart all in one. hehe :)

The right-clicking of the Taskbar method is simply this: right-click an empty spot on the Taskbar and choose "Start Task Manager".

So new update: Checked in at the Intel and Toshiba websites, apparently the driver is a custom manufacturer driver (which I should have picked up on when I saw that in the Intel Driver Update, need to stop doing this so late at night) and there is no new version of the driver available. All other drivers up to date as well.

Hi, sorry I took long to respond. f.lux is in slow 60m mode. I have the latest nvidia drivers. I only install the driver + physx when I install the drivers.

I'm using windows 7 64bit, with an i5 4690k and an nvidia gtx 770 with the latest 353.06 driver.

I'll try switching to fast mode and I'll try safe mode too.

Thanks for the suggestion! We just added that. Team members are herf and lorna.

Hi ghatokacha, thanks for your question. What's your goal? Our numbers say that if you want to use a higher kelvin value in f.lux, you'll need to dim your screen to keep the alerting light down. For keeping the screen's brightness higher, we use 2300K for a bedtime setting (f.lux's Mac defaults are 1900K before bed).

Yep those drivers can really **** stuff up.
Here's a nice story.

I installed a new CPU. Put my own well third party thermal paste on (you can NOT run any CPU without this.

I started up a game called Dirt 2. Well it ran fine for about 4 minutes of playing and would crash and that was very new.

So I thought "what could cause this--well what did I change: CPU".

So I took it out and reapplied thermal paste.
No change. I kept getting some strange error about "Graphics driver crash" but i'd just updated the video drivers after i'd installed this 775 socket quad core CPU I'd paid $125 for.

I kept reapplying thermal paste five or six times and eventually put too much and killed the CPU. It never did overheat.

I kept thinking it was something I had changed.

Put back in luckily still working dual core CPU and got the SAME ERROR.
Yeah that sucks so it wasn't the cpu. It was that damn buggy new driveri thought I wanted. And lots of people complained about crashing.

Itwas Nvidia famous 320. Something drivers. They were really bad.

Pay close attention to driver updates and don't rule them out. Sometimes they cause major issues that aren't your fault.

I since upgraded CPU + motherboard to support the new processor, to Intel Xeon 1230v3 that idles at 20 watts which is probably close to mobile CPUs. The old one used over 50 watts at idle.

If the game uses directX 9 then you will have to run the game in Windowed mode.

DirectX 9 does not support gamma color changes.

This usually depends on the video drivers. Can you find which version you have, and if there is an update?

Thank you for your responses.