Consider the following scenario:
- You have a computer that's running Windows 10 Version 1703.
- The computer has multiple display adapters, and a discrete display adapter is connected to the computer's HDMI port.
- An external monitor is connected to the computer through the HDMI cable. You set the external monitor to Duplicate mode, and you set DPI scale to larger than 100 percent.
- You open a Microsoft Management Console window, such as Computer Management or Event Viewer, and drag one edge to resize the window.
In this scenario, you find the window is not displayed as usual on the external monitor. It flickers and shows black areas.