I installed on the smart card the Debian
VERSION="10 (buster)". There is no Display connected to the Raspberry. I'm connected it only through it's Ethernet (UTP-cable), and the wifi module is disabled. I edited as sudo the
/boot/config.txt file to disabble the wifi loading on boot.
# wifi off / dissable
# change on 10-08-2019
I gave a try to connect on it with VNC from another Rpi, and I got the same Message:
Cannot currently show the desktop
I logged through ssh on that computer and started the desktop:
# where the user is
# where the ipadress is
ip a | grep -o "[1-9].*/24" | sed 's/\/.*//g'
after I logged in into that remote computer
And it worked!