Raspberry Pi VNC Server Setup

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Since 1990
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charles@varvayanis.com

Raspberry Pi VNC Server Setup

Step-by-step instructions for setting up a VNC Server on a Raspberry Pi.

These procedures apply to Raspberry Pi 5, 4 or 3 with Raspberry Pi OS (64-Bit), (32-Bit) or (Legacy, 32-Bit).

General Notes

1. General: The procedures below are optimized for setting up a VNC Server on a Raspberry Pi 5, 4 or 3 with Raspberry Pi OS (64-Bit), (32-Bit) or (Legacy, 32-Bit).

2. Internet access during setup: Many of the steps below assume and require the target Raspberry Pi is connected to a network with access to the Internet.

Notice about updates, upgrades and installations failing due to repository or network congestion or outages

Occasionally updates, upgrades and installations fail due to repository or network congestion or outages. Sometimes there is an appropriate message saying as such, sometimes a missing file is reported, and sometimes there is just a failure message without an explanation. When this occurs, simply run the command again. If that does not solve the issues immediately, try again later.

Raspberry Pi OS Documentation

https://www.raspberrypi.com/documentation/computers/os.html

Connect to the target Raspberry Pi

Via Raspberry Pi Connect Remote shell or Raspberry Pi Connect Screen share then open a Terminal window.

https://www.raspberrypi.com/software/connect

- or -

Via a Display, Keyboard and Mouse, then open a Terminal window.

- or -

Via SSH

Determine the target Raspberry Pi IP Address:

Via Raspberry Pi Connect Remote shell or Raspberry Pi Connect Screen share then open a Terminal window.

https://www.raspberrypi.com/software/connect
sudo hostname -I
- or -

Connect directly to the target Raspberry Pi via a Display, Keyboard and Mouse, then open a Terminal window.

sudo hostname -I
- or -

Use an IP Scanner tool such as Advanced IP Scanner on a PC or alike to locate the DHCP IP Address assigned to the Raspberry Pi.

https://www.advanced-ip-scanner.com
- or -

Login to your router and examine the DHCP assignments, sometimes labeled "Connected Devices" or similar.

Use SSH via a tool such as PuTTY to connect to the Raspberry Pi.

https://putty.software/

https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html

https://www.putty.org

Connect using the IP address determined above or URL of the target Raspberry Pi.

Note: The first time a connection is made, a security warning may be displayed | Yes

Enable and Configure VNC (Optional)

Notes:

VNC is preinstalled in Raspberry Pi OS, but is disabled by default.

Port used by VNC: 5900, Types TCP and UDP

Update Raspberry Pi OS and Components

Download latest package lists

sudo apt-get update -y

Download and install updated listed packages

sudo apt-get upgrade -y

Enable VNC and Set VNC Display Resolution

Via Raspberry Pi Config

sudo raspi-config

Interface Options | VNC | Yes | OK | Display Options | VNC Resolution | 1024x768 | OK | Finish | Yes

- or -

Via the Raspberry Pi GUI (Desktop)

Click on "Start" (Raspberry) On the left side of the Task Bar at the top of the Raspberry Pi desktop
Click on "Preferences"
Click on "Control Centre"
Click on the "Interfaces"
Click on the "VNC:" | On
Click on the "Display"
Click on the "Headless Resolution:" | "1024x768"
Click on the "Close" Button
When this is displayed: "The changes you have made require the Raspberry Pi to be rebooted to take effect. Would you like to reboot now?" | Yes

Connect to the target Raspberry Pi via VNC (Optional)

Determine the target Raspberry Pi IP Address:

Via Raspberry Pi Connect Remote shell or Raspberry Pi Connect Screen share then open a Terminal window.

https://www.raspberrypi.com/software/connect
sudo hostname -I
- or -

Connect directly to the target Raspberry Pi via a Display, Keyboard and Mouse, then open a Terminal window.

sudo hostname -I
- or -

Use an IP Scanner tool such as Advanced IP Scanner on a PC or alike to locate the DHCP IP Address assigned to the Raspberry Pi.

https://www.advanced-ip-scanner.com
- or -

Login to your router and examine the DHCP assignments, sometimes labeled "Connected Devices" or similar.

Use a tool such as RealNVC Viewer to connect to the Raspberry Pi

https://www.realvnc.com/en/connect/download/viewer (Free / Recommended)

https://www.realvnc.com/en/connect/plan/lite (Free)

https://www.realvnc.com/en/connect/download/combined (Paid)

https://www.realvnc.com

Connect using the IP address or URL of the target Raspberry Pi.

Note: The first time a connection is made, a security warning may be displayed | Continue

Remove packages that were automatically installed and are no longer required

Occasionally excess update, upgrade and installation packages install automatically, but are no longer required and can be removed automatically.

Automatically detect and remove packages no longer required

sudo apt autoremove -y

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e-mail: charles@varvayanis.com
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