Knowledge base: All Platforms
Can I view only one of the displays of my multiple-monitor computer?

Yes, you can tell VNC Server to only serve one of your multiple displays.

Windows:

This is done using the "DisplayDevice" parameter, which is available under VNC Server properties.

  1. Open VNC Server Options.
  2. Navigate to the "Expert" tab.
  3. Select "DisplayDevice".

You can tell it which display to serve using the syntax:

\\.\DISPLAY1

This may or may not be your primary monitor. In a standard right-ordered monitor configuration, they should be ordered Display1, Display2, Display3 and so on. However, to confirm, check your display enumeration in VNC Server > Information Center > Diagnostics.

Mac OS X:

This is done using the "Monitor" parameter, which is available under VNC Server properties.

  1. Open VNC Server Options.
  2. Navigate to the "Expert" tab.
  3. Select "Monitor".

By default it is set to "-1", which tells VNC Server to remote all monitors. Setting it to 0 will display the primary monitor, setting it to 1 will display the secondary monitor, and so on.