I’ve plugged a series of Airs and one Pro into the same 24” Dell monitor for close to a decade now. It’s been via DisplayPort, DVI, and HDMI. Right now it’s via

I’ve plugged a series of Airs and one Pro into the same 24” Dell monitor for close to a decade now. It’s been via DisplayPort, DVI, and HDMI. Right now it’s via HDMI through a USBC breakout box. Every once in a while it will be a little flickery, or offset weirdly. This always indicates that I didn’t plug the cable in correctly when I put the laptop on the desk. Re-seating it always fixes it. I use the laptop closed. Don’t like multiple displays. Life is not perfect for me, the driver for the Wacom tablet on my desk never recognizes it when I wake up the computer, so I have to unplug and reconnect the tablet. Which is annoying given that I don’t have a mouse/touchpad/etc available on the desk. (I’m an artist, I use the tablet for pretty much everything.) Dunno what you’re doing. I assume you’ve checked obvious things like connecting it with a guest account. And maybe trying the computer on other displays outside your home? Good luck finding a cause, this sounds super annoying.