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Hi, I am Vladimir Smagin, SysAdmin and

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Dimming plain desktop display under Ubuntu Linux (not notebook)

№ 11106 В разделе Sysadmin от September 17th, 2020,
В подшивках: Linux

NOT COMPATIBLE WITH REDSHIFT! Turn it off completely, not just disable.

Easiest way:

sudo add-apt-repository ppa:apandada1/brightness-controller
sudo apt-get update
sudo apt-get install brightness-controller-simple

Not easiest way:

xrandr -q | grep " connected"
xrandr --output HDMI-0 --brightness 0.5

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