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External monitor for a MacBookAir M1

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Putting this out there, in case someone was puzzled by the same issue.

Got a MacBook Air M1 a few days ago (definitely feels fast). Intended to plug it into my big monitor here at home, but neither the Mac nor monitor would recognize each other -- the monitor would claim "no signal"on the port it was plugged into. The monitor is less than a year old and has a proven track record handing a mac Mini on the HDMI port and an MacBook Pro 2011 on the DisplayPort.

I pondered the culprit. Was it the Air M1, the monitor, the USB-C hub or the cable? Fortunately I had some options.

Long process short, I tried different cables, different USB-C adapters, and a couple different monitors, and the conclusion I reached that the Air M1 would ONLY sync with any monitor with USB-C to DVI connection.

Last night I updated to Big Sur 11.1 and magically the problem was solved! All the combinations I had tried before now worked. Every cable, every adapter all showed the Air M1 on the "big screen". So, it was an macOS bug.

This topic was modified 12 months ago 2 times by appleseed
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