Switch the main display settings
Some users use Mac computers, such as laptop users, because the screen is too small may want to add a larger display, but also how much demand or display output. If there is a plurality of displays on the Mac after this time there will be the main points of the sub display area. Dock menu bar will appear on the main display, while the secondary display is not. Here briefly how the method of operation.
As shown in the figure below, the two current external monitor on this MacBook Pro laptop.
Want to set the primary and secondary display case, first click on the upper left corner of the system Apple icon, then click the menu [System Preferences] option.
Then the System Preferences window, click the icon continues to [display], shown in FIG.
Then the display's settings window, click on the top of the first column [] are arranged, as shown in FIG
As shown below, where you can see the current direction of the display arrangement. Noteworthy is that a white bar displayed at the top of the display is the current main display.
If you want to change the primary display, then drag the white bar on the display on the display can be set.
As shown below, this time on top of the display white bars have been moved to the left on the display, i.e. to the left into the main display this monitor.
In the future we want to change it, according to this method can be successful handover. Of course, if there are more of a display, but also can be set with reference to this method.
Setting the external monitor vertical screen display
Click Displays Display
Click Gather Windows, click Rotation, select the angle you want to rotate to
