Fixes for External Display Not Working on MacBook

Five solutions to get external display connected to your Mac

Photo by Kari Shea on Unsplash

My Mac, all of a sudden, cannot connect with my external display monitor.

I spent a few hours troubleshoot and FINALLY my screen is back.

Below are 5 resolutions from my research and testing. Not all of them are working on me, but no harm to give a try.

My Device

• MacBook Air (Retina, 13-inch, 2019)
• macOS Catalina Version 10.15.4
• HDMI cable to connect with my Philips External Monitor / TV

#1 Restart the machine

Like all the technology issues, restart your machine

Result for me: Negative

I would still recommend this as a first step because restart can somehow magically solve your problem.

#2 Update macOS

1. Go to the Apple  on your top left corner
2. Click About This Mac
3. Click Software Update
4. Update your Mac into the latest version of iOS
5. Restart your Mac