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Does the color temperature of a computer screen affect sleep patterns?

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21–27 of 27 posts

Re: Does the color temperature of a computer screen affect sleep patterns?

#21
post #7

For X11 users, there's also redshift ( http://jonls.dk/redshift/ ). I use it when using the computer at night as it makes for easier reading.

f.lux doesn't work with 2 monitors; does redshift?

Even the app-indicator version doesn't support 2 monitors? What setup is your dual monitors? I'm trying it out, I don't use gnome-panel applets, those bastardly things.

Re: Does the color temperature of a computer screen affect sleep patterns?

#22

Earlier quoted context omitted.

f.lux doesn't work with 2 monitors; does redshift?

Even the app-indicator version doesn't support 2 monitors? What setup is your dual monitors? I'm trying it out, I don't use gnome-panel applets, those bastardly things.

Flux definitely works on both of my monitors here just fine.

Re: Does the color temperature of a computer screen affect sleep patterns?

#23
post #6

Is this really controversial? As a commenter points out, the "opposite" effect is well established. Go to Google Scholar and search [bright light therapy circadian], and skim the abstracts. You can find papers there on color temperature affecting melatonin and core temperature, too. Anecdotally: I'm a F.lux user and I haven't had a severe insomnia episode once since I installed it, and that it in any case reduces eye…

Wow, this is crazy, I just installed F.lux, it dropped down to night-time settings, and I immediately felt my eyelids dropping.

I really needed this when I was a teenager.

Re: Does the color temperature of a computer screen affect sleep patterns?

#24

Am I the only person to feel that f.lux is counter-productive? I'm not sure if it's me or my laptop screen.

It changes screen to screen. on my macbook pro screen f.lux produces some mellow golden (?) tint to the screen and basically unnoticeable, but I have a cheap samsung 21 monitor, and on that f.lux makes screen quality deteirorate noticeably. Think of it like that: your lcd is certified to have a certain color gamut at 6800 kelvins. (daylight) But when you push it down to 3000K, there is no guarantee that your lcd will…

For me, it's a case of the colour not being uniform throughout - the lower part is considerably more "whitish" than the upper part, especially with f.lux fully kicked in at night. This basically irritates the heck out of me and I end up disabling it.

Re: Does the color temperature of a computer screen affect sleep patterns?

#25

Earlier quoted context omitted.

f.lux doesn't work with 2 monitors; does redshift?

Yes, RedShift does support that. I've just tested on a laptop with an external monitor attached.

I can confirm that.

Re: Does the color temperature of a computer screen affect sleep patterns?

#26

Earlier quoted context omitted.

f.lux doesn't work with 2 monitors; does redshift?

Even the app-indicator version doesn't support 2 monitors? What setup is your dual monitors? I'm trying it out, I don't use gnome-panel applets, those bastardly things.

I haven't been using f.lux since I learned about the flaw - it would only work with one of my monitors on Ubuntu Maverick (or Lucid, I don't remember now).

I'm now happily using redshift and it does work with two monitors.

Re: Does the color temperature of a computer screen affect sleep patterns?

#27

Earlier quoted context omitted.

f.lux doesn't work with 2 monitors; does redshift?

Which platform are you on? f.lux on OS X works just fine across many displays.

Yes, I should have mentioned my platform. It was Ubuntu Maverick or Lucid. I haven't checked it on any newer version.
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