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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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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 Aquarius 5.x KDE HP Elitedesk 705 G4 Mini - Ryzen 5 2400g, 16gb ddr4, 1tb m.2 nvme ssd
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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.
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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 Aquarius 5.x KDE HP Elitedesk 705 G4 Mini - Ryzen 5 2400g, 16gb ddr4, 1tb m.2 nvme ssd
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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.
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Same here and I also use filters on some of my systems as staring at computers all day is tough on the eyes.
Q4OS Aquarius 5.x KDE HP Elitedesk 705 G4 Mini - Ryzen 5 2400g, 16gb ddr4, 1tb m.2 nvme ssd
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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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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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Plasma has a night color module in system settings.
So there's no need to add or install anything.
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