In recent versions of macOS and iPadOS, Apple introduced “Universal Control.” If you place a MacBook Pro and an iPad side-by-side on your desk, you can seamlessly push your Mac’s mouse cursor off the edge of the screen, and it will magically appear on the iPad. You can then use your Mac’s trackpad and keyboard to control the tablet, drag files between the devices, and type text.
While this is an incredible technical achievement, it can be extremely disruptive if you intentionally use your iPad as a separate, isolated device (for example, using the iPad to display a static reference PDF or playing a YouTube video while you code on the Mac). If you accidentally push your mouse too far to the left or right, it will suddenly jump to the iPad, stealing your keyboard focus and interrupting your workflow. If you prefer your devices to act as independent screens with strict boundaries, you must completely disable Universal Control.
Disabling Universal Control via Display Settings
Universal Control is tied directly into the macOS Display management engine. You can turn off the specific triggers that cause the mouse to bridge the gap between devices.
- Click the Apple Logo in the top-left corner of your Mac’s screen and select System Settings….
- Scroll down the left-hand navigation sidebar and click on Displays.
- At the bottom of the main panel, look for a button labelled Advanced… and click it.
- A new pane titled “Link to Mac or iPad” will appear, revealing three specific toggle switches that govern Universal Control.
- Turn off the first toggle labelled Allow your pointer and keyboard to move between any nearby Mac or iPad. This is the master switch that completely kills the feature.
- (Optional) If you want to keep the feature active but stop the mouse from accidentally jumping over, you can leave the first switch on, but turn off the second switch labelled Push through the edge of a display to connect a nearby Mac or iPad.
- Click Done to save your changes.
Your Mac and iPad are now completely isolated again. No matter how aggressively you drag your mouse cursor to the physical edge of your MacBook screen, it will hit a hard digital wall and bounce back, ensuring your keyboard focus never accidentally slips away to your tablet.