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How to create a Virtual Screen using xrand on Debian Jessie FluxBox desk

This is a very short tutorial how to setup a virtual screen also known as second monitor (no twin monitor).

My laptop has three main outputs, eDP1, VGA1, and HDMI1. eDP1 is LCD, VGA1 and HDMI1 output are on the side of my laptop.

You can identify your Outputs using the following command

$ xrandr | grep connected
 eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
 VGA1 disconnected 1440x900+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm
 HDMI1 disconnected (normal left inverted right x axis y axis)

You can setup the Video resolution, in my case I have chosen 1440×900 for VGA1

$ xrandr --output VGA1 --mode 1440x900

After that you must choose where the Virtual Screen will be setup, on the right (--right-of), left  (--left-of), above (--above), or bellow (--below) of your major output video (eDP1)

$ xrandr --output VGA1 --right-of eDP1

https://pkg-xorg.alioth.debian.org/howto/use-xrandr.html
https://wiki.archlinux.org/index.php/Xrandr

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