troubleshoot 2020 Macbook Air External Display issues

mcarley11 · March 30, 2023

so, I was wondering if anyone could help me, I bought my mother a 2020 MacBook air intel version back when they came out in 2020. and she been using dual monitors for majority of owning the MacBook air with no problems at all but then this past week she unhook it from her two monitors to take it somewhere and use now when she plugs it back in one monitor gets pick up and the second one doesn't connect at all anymore.

I try my monitor on it still didn't work and also bought new dongle for it from apple thinking that was the problem and that still didn't work only one get detected and works. I even updated mac os to the latest firmware and that didn't work either so I was wondering if any could give me any advice on what to do and what have might cause this.

Her Specs are 2020 MacBook Air base model intel i3 1.1 Ghz 8gb ram and 256gb storage and she only does basic task on it like word documents and email and excel stuff on it that it nothing major.

DrMacintosh · March 30, 2023

Can you get a single display out on either of the ports on the MacBook? If it woks on one port but not the other, there is probably some damage to the one port that is not working.

mcarley11 · March 30, 2023

yes i use Apple - USB Type-C Digital AV Multiport Adapter and then with that plug in a hdmi cable into that and works with one screen then i use a second usb c hdmi adapter plugged into USB-C port on apple adapter and been working fine like that for the past two years now it won't work and we switch the apple adapter plus the anker adapter too see if that would fix the problem and we try both ports on macbook air and they both work the same only one monitor get signal and that is one directly plug into the apple digital av adapter and works.