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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: 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.