If you would like to access the on-board computer on the drone without using a monitor, you can use remote desktop access. You can establish a connection either wired (with Gigabit Ethernet cable), wirelessly with WI-FI or via the internet using the on-board 4G modem.
X2Go allows a SSH connection in full resolution, at the same time it is possible to have multiple sessions running on the remote machine at the same time.
Server Installation
If the X2Go server has not already been installed on the on-board computer, you need to do this first. Connect the drone to a monitor with mouse and keyboard, boot it up and open a command terminal.
Follow these steps in the command terminal for installation:
sudo add-apt-repository ppa:x2go/stable
sudo apt-get update
sudo apt-get install x2goserver x2goserver-xsession
sudo apt install xfce4 -y
Klient Installation
If you are working on a Ubuntu machine, you can install the X2Go client using this simple install command in the command terminal:
sudo apt install x2goclient
If you are using Windows, download and install the program here:
http://code.x2go.org/releases/X2GoClient_latest_mswin32-setup.exe
For the connection to be stable, make sure to use XFCE option rather than KDE when connecting. If you do not want to be propted for a code while logging in, you can enable a SSH-Key for secure connection.
https://wiki.x2go.org/doku.php/download:start
You can follow this guide on how to use X2Go: