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Asked: 2024-09-24T15:45:03+05:30 In:

How can I adjust the color temperature in Redshift to a specific value on my Ubuntu system?

I’ve been trying to figure out how to adjust the color temperature in Redshift on my Ubuntu system, and it’s driving me a little nuts! I’ve read some online tutorials and forum posts, but nothing seems to work quite right for me. I think I might not fully understand how to set it up properly.

So here’s the thing: I often split my time between working during the day and then doing some coding late into the night. After a while, the blue light from my screen really starts to bother my eyes, especially when I’m trying to wind down. I’ve heard that adjusting the color temperature to a warmer tone can help reduce eye strain and make it easier on the eyes at night. Redshift is supposed to help with that, but I’m not sure how to get it to the exact setting I want.

I’ve installed Redshift, but I’m kind of lost when it comes to actually setting the color temperature. I want to know how to adjust it to a specific value, say around 3500K, but I’m not sure if I should be using command-line options or if there’s a graphical interface I can use. If anyone has gone through this process, could you share the exact steps?

Also, does adjusting it to a specific value really make a noticeable difference? I read somewhere that going too warm can affect color accuracy, which is something I need for some of my design work. If anyone has tips on balancing warmth and color accuracy, I’d really appreciate it!

Are there any particular commands or configurations in the configuration file that I need to tweak? And I’m also curious if there are any other tools or alternatives to Redshift that might be easier to use for color temperature adjustments on Ubuntu. Thanks in advance for any help you can provide!

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    2 Answers


    1. To adjust the color temperature in Redshift, you can indeed control it through the command line. After ensuring that you have Redshift installed, you can launch it with specific parameters to set your desired color temperature. To set it to 3500K, you can use the following command in your terminal: redshift -O 3500. This command sets the color temperature immediately. Additionally, if you want Redshift to automatically adjust your screen temperature based on your location, you can add options to specify your latitude and longitude using -l, for example: redshift -l 37.7749:-122.4194 -O 3500. If you prefer a graphical interface, you might consider using gRedshift, which provides a user-friendly way to adjust settings without entering commands manually.

      It’s worth noting that adjusting the color temperature to a warmer tone like 3500K can help alleviate eye strain during late-night coding sessions, making it easier to wind down. However, as you mentioned, there is a trade-off regarding color accuracy, especially for design work. It’s advisable to find a balance by using slightly warmer tones during the night and reverting to a cooler temperature during the day for better color representation. If you want to control Redshift’s behavior further, you can edit the configuration file located at ~/.config/redshift.conf to set a custom day and night temperature. For alternatives, consider xrandr or Night Light, which are also suitable for similar adjustments on Ubuntu.




    2. Adjusting Color Temperature in Redshift on Ubuntu

      Adjusting Color Temperature in Redshift

      So, you’ve got Redshift installed—awesome! Now, let’s get that color temperature adjusted to help your eyes out. It can definitely be a bit confusing at first, but I’ll try to break it down in simple steps!

      Setting Up Redshift

      First, to set the color temperature to around 3500K, you can use the command line. Open your terminal and type the following command:

      redshift -O 3500

      This will immediately change the color temperature to 3500K. No fuss, no muss!

      Using a Configuration File

      If you want Redshift to start with this setting every time, you can create a configuration file. Follow these steps:

      1. Create a file called “.config/redshift.conf” in your home directory.
      2. Add the following lines to the file:
      [redshift]
temp=3500

      Now, whenever you start Redshift, it’ll use this temperature setting!

      Color Accuracy vs. Warmth

      About your concern on color accuracy—yeah, going too warm can mess with how colors look, especially if you do design work. A good balance is to keep it warmer at night, but you could consider using a temperature around 4000K instead of 3500K if you need a bit more accuracy while still reducing eye strain.

      Graphical Interface

      If you’re not into the command line, you can also look for graphical tools like GNOME Redshift, which might make it easier to adjust settings without typing commands.

      Alternatives to Redshift

      If Redshift doesn’t seem to work for you, you might want to check out f.lux. It’s pretty popular and has a friendly interface for adjusting settings. Just search for it in your package manager or download it from their site.

      Final Thoughts

      Adjusting the color temperature can really make a noticeable difference, especially when working late hours. Don’t hesitate to experiment a bit to see what works best for you!


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