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How do I go about changing my laptop's display's color temperature? And I don't mean through something like the Red, Green, Blue sliders in the NVIDIA config menu. I'm talking about like adjusting in degrees, like editing a photo's white balance.

So now I've found Redshift and it's doing me pretty good. I thought it might be helpful if I out here the command I'm using.

redshift -t 5000:5000 -g .5

By adding this to my start up commands I should be good.

I'm still open to other suggestions, because I'd like something that actually edited my xorg.conf or something like that.

Braiam
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RPG Master
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8 Answers8

23

redshift -O 5000 works for instantly turning on warm mode instead of messing with location data

CornSmith
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13

Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

I'm not sure if this is what you need because, as far as I know, it won't let you adjust the colour temperature manually. It may help though, so Here's the website anyway.

Helix
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5

If you've got any form of colour-calibration hardware (or can find a profile on the internet) then gnome-color-manager will load and apply monitor calibration system-wide.

Windows drivers for monitors and laptops will often come with an .icm colour profile you can use, which, while not perfect, would almost certainly be better than nothing.

RAOF
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2

This follows @CornSmith answer :

  1. Check System Panel icon for RedShift App

enter image description here

  1. Disable it.
  2. Execute following command

redshift -O 3000

  1. Color temperature of your display should change
  2. To revert, just go to System Panel and Enable it, Automatic Feature will be back!
Sohan Nipunage
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In case you are using proprietary drivers, its quite easy with the built in gamma and color control, otherwise follow the methods listed above. Even Intel cards have GPU tools that can be installed via x-swat ppa.

Arup Roy Chowdhury
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1

Another option is sct (set color temperature?). If you like small, compact programs with few dependencies, sct might be a good option.

https://packages.ubuntu.com/search?suite=all&searchon=names&keywords=sct

mpb
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I installed the f.lux gui, but have scripted xflux a bit instead of using the gui, to just make the changes when I wanted. on 10.04, redshift was out of date.

Andrew
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LPROF http://lprof.sourceforge.net/ seems to be your best bet for adjusting color temperature via software. There's also ArgyllCMS which looks to have an even steeper learning curve.

I have not used either but LPROF is available as an ubuntu package. sudo aptitude install lprof