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I'm working from home and my job gave me a Raspberry Pi to use. I've never used one before, and I have it running but there is no control panel or anything, I just want to add a blue light filter, that's it.

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    What Pi? What OS? there are extensive configuration options. What is "a blue light filter?
    – Milliways
    Mar 17, 2020 at 22:59
  • I dont know what Pi it is. Blue light filter is just a screen filter so there isnt so much blue light that's bad for your eyes. Is there a control panel or something? I don't know how any of this works
    – Clueless
    Mar 17, 2020 at 23:21
  • Depends on the OS you are running Mar 18, 2020 at 1:12
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    Please open a terminal session, type cat /etc/os-release, and tell us the output. Please edit that into your question rather than replying as a comment.
    – Bob Brown
    Mar 18, 2020 at 21:02
  • As per this blog, simply using the "warm" setting on your monitor should do: nrecursions.blogspot.com/2018/03/…
    – Nav
    Oct 23, 2020 at 4:44

2 Answers 2

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Your monitor might have a setting to do with that. My Benq monitor has a built-in "night" setting that provides you with a slightly orange light.

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Most Linuxes include a program redshift. Just type

man redshift

to see if you have it and how to use it.

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  • Before you recommend redshift, can you confirm (with reproduction steps) that you actually have it working on a Pi?
    – jimjamz
    Dec 20, 2020 at 8:37

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