Selection of Displays Other than :0 Broken

[djarthurmiller]

Vine Server 5.3.1 is not selecting and serving displays other than :0 when applied to the 'Display Number' dropdown in the application preferences. Port numbers are changing correctly, but Display 0 always appears at ports 5900-5909 regardless. Alternatively, when an alternative display is given as an argument (-display 1 for example), it is displayed, however cursor and keyboard input remains on Display 0.

If a different display is set to Display 0 (by moving the white menubar control to another screen in System Prefs > Display > Arrangement) it does become available with input, however this is a less than perfect workaround for multiple screens. The behavior remained the same when tested under Catalina (10.15.7), Mojave (10.14.6) and Sierra (10.12.6).