Multi monitor setup under XORG on Linux

multi_monitor.md

Multi monitor setup under XORG on Linux

These configurations have been tested on Manjaro with XFCE.

Working perfectly on 2 monitors:

1920x1080p

3840x2160p

First, you will need to download the xorg-xrandr package:

Arch / Manjaro

sudo pacman -S xrandr-xorg

Debian / Ubuntu

sudo apt update && sudo apt install x11-xserver-utils

Script

This script will probably change over the time, so you need to know the name of the monitors and it's respective locations, read the xrandr documentation.

Create a file called display.sh and paste the script below:

#!/bin/sh

xrandr --output HDMI-A-0 --auto --pos 0x1080 --output DisplayPort-2 --scale 0.70x0.70 --pos 1920x0 --right-of HDMI-A-0

Then make the it executable:

chmod 755 display.sh

After that, move the script to: /usr/local/bin

sudo mv display.sh /usr/local/bin

Make it permanent

Edit the file /etc/lightdm/lightdm.conf and uncomment the line: display-setup-script= and add the path to your script:

display-setup-script=/usr/local/bin/display.sh

Useful links

• https://forum.manjaro.org/t/solved-make-xrandr-permanent/69859/4
• https://superuser.com/questions/485120/how-do-i-align-the-bottom-edges-of-two-monitors-with-xrandr
• https://wiki.archlinux.org/index.php/Xrandr
• https://wiki.archlinux.org/index.php/Multihead
• https://unix.stackexchange.com/questions/450835/how-to-execute-command-before-user-login-on-linux

Todo

• Test in another desktop environment (Gnome, KDE).