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i've recently started using f.lux [1], which adjusts the color temperature of the screen based on the time. after a night of coding, i've noticed i've been able to fall asleep more quickly, probably since my eyes adjust to the ambient warm light in the room while coding.

[1] http://stereopsis.com/flux/

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I used it for awhile, but found the transition to be really jarring - it happened over a period of ten seconds.

You can set it to transition over an hour, so it's a lot more subtle.

f.lux is great when it works, but if you plug into an external monitor at all, it seems to stop working automatically. I'd go three days and suddenly realise that I'm staring at a very blue screen at 11pm. This is on a Mac, it might be fine on other platforms.

As another anecdotal data point, I have had f.lux working fine for months with 3 monitors on my Mac Pro (running the latest version of Mac OS X).

Good to know. I only have problems when switching between internal and external on an MBP.

I've have similar issues when switching back and forth to an external monitor. After switching though I just quit and restart f.lux and it looks fine again.

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