How startup every time with sytem display setting on duplicate. The startup keeps resetting on extending my screen and then duplicating my screen which needed to enable it appear on my client viewer from server client. How do startup on duplicating screen? Do use cmd or batch file
this is a behavior of Windows graphics database and spacedesk does not have control to this.
We can only suggest to use the same resolution of the main monitor in the spacedesk viewer app.
Also, it might be easier for you to change to duplication using display switch (Win+P keys).