Masters,

I am using Windows 7, want to connect two monitors, inside the control panel, the appearance and personalization, display, screen resolution, duplicate these displays, appear "You must select the Apply before making additional changes",
Do you have any good Suggestions?

Thank you first!

Li

CodePudding user response:

Is to expand shows that shows or copy, and your useful discrete graphics

CodePudding user response:

Reference:
http://www.justanswer.com/email/7hi61-extend-monitor-windows-not-working.html

CodePudding user response:

First your independent video card can support the extension, in the system hold the start logo, at point P keyboard can see copy or extend

CodePudding user response:

First video card driver support

CodePudding user response:

Graphics support long drive