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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: 1,773
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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   Lenovo Thinkcentre M700 Tiny   2.2ghz i5 cpu, 16gb ddr4, 256gb ssd

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#3 2017-06-04 09:52

Dai_trying
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From: UK
Registered: 2015-12-14
Posts: 2,974
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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: 1,773
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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   Lenovo Thinkcentre M700 Tiny   2.2ghz i5 cpu, 16gb ddr4, 256gb ssd

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#5 2017-06-04 17:06

Dai_trying
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From: UK
Registered: 2015-12-14
Posts: 2,974
Website

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: 1,773
Website

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   Lenovo Thinkcentre M700 Tiny   2.2ghz i5 cpu, 16gb ddr4, 256gb 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: 485

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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