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#1 2017-06-04 01:17

q4os_user
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Registered: 2016-01-21
Posts: 66

Night mode (reduced blue light) for Q4OS to avoid sleep problems

Windows and macOS already have such a feature built in, it would be nice to have it for Q4OS too. Here you can read about solutions for Linux.

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#2 2017-06-04 02:24

crosscourt
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Registered: 2017-05-07
Posts: 1,764
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Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

They also sell blue light filters for laptops,pcs and other portable devices that accomplish the same thing, reducing glare/eyestrain as well.

Last edited by crosscourt (2017-06-04 02:25)


Q4OS Gemini KDE   Dell Latitude 3340 i3 1.7ghz/3340 1.4ghz celeron, 8gb ddr3, 256gb Adata SSD

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#3 2017-06-04 09:52

Dai_trying
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From: UK
Registered: 2015-12-14
Posts: 2,971
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Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

Redshift that is available in the repositories would probably be the best choice, but I haven't tried it (yet). According to what I have read it is possible for a cli or gui package so suitable for everyone and as it can be manually turned on/off it would also be suitable for working with your own scripts enabling you to set your own timers. Sound like a pretty good package and I will be trying it out later to see if it works well with Q4OS. Thanks @q4os_user for the informative link. smile

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#4 2017-06-04 16:30

crosscourt
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Registered: 2017-05-07
Posts: 1,764
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Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

Redshift was inspired originally by f.lux but you can read more about it here,  http://jonls.dk/redshift/

It has some issues with certain video drivers and features just as f.lux does.

Last edited by crosscourt (2017-06-04 16:48)


Q4OS Gemini KDE   Dell Latitude 3340 i3 1.7ghz/3340 1.4ghz celeron, 8gb ddr3, 256gb Adata SSD

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#5 2017-06-04 17:06

Dai_trying
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From: UK
Registered: 2015-12-14
Posts: 2,971
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Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

Thanks CC, I will be trying it but I have to say I usually reduce the brightness at night using tdepowersave from the system tray, very easy to set. smile

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#6 2017-06-04 18:49

crosscourt
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Registered: 2017-05-07
Posts: 1,764
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Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

Same here and I also use filters on some of my systems as staring at computers all day is tough on the eyes.


Q4OS Gemini KDE   Dell Latitude 3340 i3 1.7ghz/3340 1.4ghz celeron, 8gb ddr3, 256gb Adata SSD

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#7 2021-05-23 23:45

LanceHaverkamp
Member
Registered: 2021-05-23
Posts: 13

Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

This is how I added redshift to Plasma:

sudo apt install redshift plasma-applet-redshift-control

Then add the following 4 lines at the bottom of /etc/geoclue/geoclue.conf

[redshift]
allowed=true
system=false
users=


These instructions are for Buster/Centaurus, it will be even easier in future KDE releases.

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#8 2021-06-27 02:15

joey_linux
Member
Registered: 2021-06-26
Posts: 10

Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

redshift works, but f.lux is so much easier and better. Just download and install the *.deb file. Then enter a rough location to get time zone and set color temp. DONE ... no config files to edit, all GIU and no wonky-ness (or at least to what I've experienced)

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#9 2021-06-27 13:44

Tolkem
Member
Registered: 2019-10-06
Posts: 483

Re: Night mode (reduced blue light) for Q4OS to avoid sleep problems

Plasma has a night color module in system settings.

Screenshot_20190612_232013.png

So there's no need to add or install anything.

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