External monitor keeps disconnecting/going black

New MacBook Air 13-inch MacBook Air - 16 GB memory; added new LG 27QN600-B 27” QHD (2560 x 1440) using apple adaptor. after 1 mo., screen keeps disconnecting/black. ??? Worked fine for an entire month. (Topics did not allow me to choose "new external monitor" so I had to check "older displays & monitors," sorry.)

MacBook Air 13″, macOS 11.4

Posted on Jul 10, 2021 4:22 PM

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External monitor keeps disconnecting/going black

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