Then it appeared the device stopped exporting the video signal to the external display.
For instance, you can plug a 5K display to your iPad Pro and show some video on the external display.
The external display shows the current time, incoming calls, and allows you to preview messages.
Check for the external display ports.
Need a handy dandy spot to store your notebook when using an external display?
You drive the main external display from the HDMI port in the usual way, then use the USB 3.0 hub to drive two extra screens.
Given the tremendous size of the iPad Pro, it makes a lot of sense to use it as an external display.
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Apple today announced that it is discontinuing its Thunderbolt Display, the large external display many use to connect to MacBooks or other Macs for extra screen real estate.
Plus, recent additions like pressure sensitivity for Apple Pencil have made the iPad, using Duet Display, a better external display than most dedicated external displays.
