It seems to remember the last desktop mode (extension) even after you detach your primary monitor.
Could you please try the following workaround:
– attach your primary monitor
– connect the spacedesk viewer
– switch to projector mode / second screen only via display switch (Windows logo key + P)
– detach your primary monitor
Try to restart your primary machine this time without your primary monitor attached and just try to connect your spacedesk viewer.
Thanks for the suggestion. I tried this but unfortunately when the pc boots it connects to the spacedesk monitor but still only as extended monitor and not the primary. Any other suggestion would be appreciated.
This reply was modified 6 months, 3 weeks ago by oberon23.