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Sadly, this page is just copied from the Linux [[How Do I: A Linux Q&A]] page for now. Details on these commands will be added in the future.xrandr:== [DISPLAY RESOLUTIONS AVAILABLE FOR MONITOR OR SET FROM COMMAND LINE] ==The command structure is xrandr --output displayname --brightness brightness where displayname is the connected display that you have chosen from the list that you get with the command xrandr -q | grep " connected"and brightness is a value of your choosing (1 being the default). Values above 2 will wash things out to the point of being virtually unreadable, and values of .1 or below aren't recommended either. xgamma: Sadly, some of this page is just copied from the Linux [[How Do I: A Linux Q&A]] page for now. Details on these commands will be added in the future. == Display Resolutions Available for the Monitor ==== [ADJUST DISPLAY CONTRAST AND TINT FROM COMMAND LINE] ==Interesting side note: A Linux Mint system with an analog VGA LCD monitor connected is identified as 'VGA1' on a Mint 18.3 system, and 'VGA-1' on Mint 19.2. Notice the addition of the dash since the update. Which module this comes from and why development is so inconsistent is unknown. To the developers I suggest keeping the same name convention. VGA1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm == Adjusting the Display Contrast, Tint, and Brightness from the Command Line ==== testing == $ xgamma -> Red 0.700, Green 0.700, Blue 0.700 $ xrandr --output VGA-1 --gamma 1.5:1.5:1.5 $ xgamma -> Red 0.700, Green 0.700, Blue 0.700 $ xrandr --output VGA-1 --brightness 0.5 $ xgamma -> Red 0.700, Green 0.700, Blue 0.700 $ xgamma -gamma .9 -> Red 0.700, Green 0.700, Blue 0.700 <- Red 0.900, Green 0.900, Blue 0.900Restore default xrandr --output VGA-1 --gamma 1:1:1 --brightness 1.0== eye strain relief ==The full brightness setting is: xrandr --output VGA-1 --gamma 1:1:1 --brightness 1.0The nighttime setting is: xrandr --output VGA-1 --gamma 1.1:0.8:0.7 --brightness 0.55Reading setting: xrandr --output VGA-1 --gamma 0.9:0.9:0.8 --brightness 0.85High contrast for gaming: xrandr --output VGA-1 --gamma 0.9:0.9:0.9 --brightness 1.3