https://www.bleepingcomputer.com/news/microsoft/windows-10-2004-external-displays-go-black-when-drawing-in-word/ > Microsoft says that external displays might go black if Windows 10, version 2004 users try to draw in apps including but not limited to Microsoft Office Word and Whiteboard. > After the affected external monitors go black, customers will see that their graphics controllers are being marked as having issues in Device Manager.