On the primary monitor, you’ll see a window titled Desktop & Screen Saver, which. If you have more than one monitor attached to your Mac, a window will pop up on each one. In System Preferences, click Desktop & Screen Saver. Notice the red border that forms around the new primary screen as you drag the white bar into the arrangement, this helps you determine which screen is being used as the primary screen.Īfter you release the white bar onto the other blue screen representation, the screens of both displays will flicker on and off briefly and the video output will adjust to accommodate the new settings. First, click on the Apple menu in the upper-left corner of the screen and select System Preferences. Here’s how it works: Click on the Apple menu.
MAC DUAL MONITORS CHANGE PRIMARY MAC OS X
Open " System Preferences" from the Apple menuĬlick and hold the white bar at the top of the current primary display, this white bar represents the menu bar on your desktop.ĭrag the white bar across to the other monitor you want to set as the new primary display for your Mac. Mac OS X also allows you to extend your primary display to the external monitor. In the case of macOS computers, the multiple monitors are not displayed with numbers, but rather with a white banner on top of the main display, which you can move between the displays to change which one is the main display. Please note that for Windows 7, it is expected that the main display will be mirrored, not the secondary one.