Found this article https://blog.hackster.io/getting-started-with-the-nvidia-jetson-nano-developer-kit-43aa7c298797 while googling: Jetson Nano “headless”
Look down in [Enabling Desktop Sharing] section. The first thing you need to do is to edit the org.gnome.Vino schema to restore the missing enabled parameter.
$ sudo vi /usr/share/glib-2.0/schemas/org.gnome.Vino.gschema.xml
and go ahead and add the following key into the XML file.
<key name=’enabled’ type=’b’>
<summary>Enable remote access to the desktop</summary>
<description>
If true, allows remote access to the desktop via the RFB
protocol. Users on remote machines may then connect to the
desktop using a VNC viewer.
</description>
<default>false</default>
</key>
Then compile the Gnome schemas with the glib-compile-schemas command.
$ sudo glib-compile-schemas /usr/share/glib-2.0/schemas
This quick hack should stop the “Desktop Sharing” panel crashing, allowing you to open it. So go ahead and click on the “Settings” icon, and then the “Desktop Sharing” icon…
A much better solution is to install ‘xrdp’ as suggested in [Enabling Remote Desktop] section, as that can really make your Nano purely headless and also allow occasional attaching a monitor.