Comments on: External Display Not Working? Try These 15 Fixes for macOS https://www.maketecheasier.com/fixes-external-display-not-working-macos/ Uncomplicating the complicated, making life easier Sat, 12 Mar 2022 22:07:59 +0000 hourly 1 https://wordpress.org/?v=6.0.1 By: Rich Mitchell https://www.maketecheasier.com/fixes-external-display-not-working-macos/#comment-98187 Sat, 12 Mar 2022 22:07:59 +0000 https://www.maketecheasier.com/?post_type=post-ideas&p=287905#comment-98187 I have one to add….

Make sure you are using a port on your monitor that supports UHD at 60 hertz

I had my Mac mini plugged into a port on my monitor which only supported UHD at 30 hertz. Whenever I upgraded, my monitor would not display. I was plugging it into another display, non-UHD, to get it booted. For earlier upgrades I was moving cables, unplugging and plugging monitor back in, reset SMC, reset NVRAM, etc. Obviously I got it to work eventually somehow and was good until the next upgrade. This time I FINALLY figured out that I had it plugged into HDMI 1 which only supported UHD at 30 hertz. When I moved it to HDMI 3 which supported UHD at 60 hertz, it displayed on boot.

I hope this comment helps someone else.

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