This assumes you are installing on a RPI 4 with 4GB of memory

If not you need to modify the video memory split to suite your needs in both the ‘raspi-config’ step as well as the ‘Skip the prompt for GPU Split’ step

Download Raspbian Lite

RaspberryPi Downloads

Use SD Formater and Win32 Diskimager to load the image to a Micro SD Card

log in and run ‘sudo raspi-config’

  • Change the password for the ‘pi’ user
  • Under Network Options:
  • N1 Hostname: [Your Hostname]
  • N3 Network Interface Names: Yes
  • Under Boot Options:
  • B2 Wait for Network at Boot: Yes
  • Under Localisation Options:
  • I1 Change Locale: en_US.UTF-8 UTF-8 | en_US.UTF-8
  • I2 Change Timezone: America | Chicago
  • I4 Change Wi-fi Country: US United States
  • Under Interface Options:
  • P1 Camera: No
  • P2 SSH: Yes
  • Under Advanced Options:
  • A1 Expand Filesystem
  • A3 Memory Split: 2048

Once completed the pi will prompt you to reboot

Log into the pi using SSH

Make sure stuff is up to date 

sudo apt-get update && sudo apt-get upgrade -y && sudo reboot

Download DisplayCameras

cd /tmp/
wget https://github.com/Anonymousdog/displaycameras/archive/master.tar.gz

Decompress and get started

tar -xvzf ./master.tar.gz
cd ./displaycameras-master/

Skip the prompt for GPU Split 

sudo sed -i -e '/Enter a custom gpu split if desired/,+6d' install.sh
sudo sed -i '/ a custom split desired/a\split=2048' install.sh

Skip the prompt to view the ReadMe 

sudo sed -i '/Installation Successful/a\exit 0' install.sh

Install

sudo chmod +x install.sh
sudo ./install.sh

cd ..
sudo rm master.tar.gz*
sudo rm -fr displaycameras-master/
sudo rm displaycameras.seq

Backup your original files

sudo cp /etc/displaycameras/displaycameras.conf /etc/displaycameras/displaycameras.conf.origional
sudo cp /etc/displaycameras/layout.conf.default /etc/displaycameras/layout.conf.default.origional

Enable screen blanking

sudo sed -i '/#blank="true"/a\blank="true"' /etc/displaycameras/displaycameras.conf

Modify /etc/displaycameras/layout.conf.default to fit your needs

DisplayCameras page for guidence

Enable & run the service

sudo systemctl enable displaycameras
sudo systemctl start displaycameras

Now if you want to support multiple screen resolutions (without editing it every time)

you will need to create a layout file for each resolution.
layout.conf.1360×768
layout.conf.1080×720

First step is to enable the auto detection of the screen size

sudo sed -i '/#displaydetect=true/a\displaydetect=true' /etc/displaycameras/displaycameras.conf