MacBook

12" Retina MacBook (2016) Display Flickering. No Signal on External Display.

https://discussions.apple.com/thread/7615336?page=1

I've been messing around the HDMI setting menu on my display.

Found out that if I disable auto-switch input and pre-select the HDMI input on the external display before connecting the laptop to the display everything works just fine.

Can't reply to the original post anymore but I hope this helps out someone.

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