I have used rlancaste great AstroPi3 script to set a new RPi and its working fine using local HDMI, but using it headless with VNC Viewer I cannot seem to set the display resolution so I can see the whole screen. I am using Windows 10 with a screen resolution of 1366x768 which is I understand limiting, but I would like to set the Pi display setting so I can ore. Using EKOS / INDI is near impossible over VNC as I cannot see the buttons for the windows.
You need to edit the file /boot/config.txt as root and uncomment the following parameters and give them these values:
The value of hdmi_mode will give a resolution of 1280x768 which may still be too large for your display. Please refer to the same /boot/config.txt file for other possible values of hdmi_mode. Don't forget to reboot after you make the changes.
Wouter van Reeven
ASI6200MM and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R