I have a new HP ZBook 15 G4 running Windows 10 with a Thunderbolt Slim Dock (P5Q58AA) and an external HP EliteDisplay E273 connected to the Dock via DisplayPort. I want to use the internal ZBook display and Extend the E273. I can get the E273 to duplicate the ZBook display, but cannot get it to extend the second display.
Windows 10 Display Settings show both displays as a single 1|2 display.
The Nvidia Control Panel only shows the E273 connected via DisplayPort.
The Intel Graphic Settings only shows the ZBook Built-In Display.