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Is there any way to use Redshift on Raspberry Pi 4? I used redshift -P -O 3700 -g 0.7 -b 0.7 and it only works from time to time. Some times after restarting it doesnt filter the blue light anymore. Tried to enable openGL but still doesn't work. Or is there any other app that would dim the light?

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    How is this question off-topic? Are Stack Exchange mods unhinged? Commented Oct 20 at 21:57
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    @brettinternet The funny thing is that I found a solution to this problem, but I can't post it now. Oh, well. It's called "eyesaver" and you can find it on github. Commented Oct 22 at 5:52

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found the clue

ddcutil setvcp 10 50
ddcutil setvcp 12 50

will do it

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  • Don't forget that I2C needs to be enabled for ddcutil to work. Commented Oct 22 at 5:52

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