Connecting Dell U2412M monitor to MacBook Air M1 (2020)

I have tried various cables to connect this Dell monitor previously used with a Dell laptop to my wife's MacBook Air M1 running macOS 12.6.2. The display app in the Mac OS settings panel does not see the Dell external monitor when connected by an HDMI cable plugged into an Anker hub connected to the USB-C port of the MBA and connected with a display port cable plugged into the display port of the monitor. Has anyone successfully used a Dell U2412M monitor with a MacBook Air? If so what cable did you use? Which operating system? I am thinking of upgrading her to Ventura. Also is there a display driver or firmware upgrade needed. Dell support directs me to Apple support.

Posted on Mar 11, 2023 06:52 AM

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7 replies

Apr 25, 2023 05:46 PM in response to Azakairzur

Azakairzur Said:

"Connecting Dell U2412M monitor to MacBook Air M1 (2020): I tried several cables but eventually found that a USB-C to DP cable worked but I could not through a hub, it had to connect directly from the MB Air M1 to the Dell monitor.

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Use of Adapters for a Display to Work:


Read my User Tip:

It’s probably the wattage/amperage being to high or too low. Read this User Tip of mine, and you’d see how this all comes into play through use of adapters and hubs to get a successful display output: Configuring a USB-C Only Mac with a 30-Inch Apple Cinema Display - User Tip

Apr 24, 2023 09:12 PM in response to Azakairzur

I tried using a variety of Cables and none worked when connected to display port of the monitor. The only thing that worked was when I used a DVI-D adapter to connect to the monitor. Surprisingly this phenomenon happens only with an M1 processor and the previous versions work well. I was looking for possible reasons for this phenomenon when I came across this question.

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Connecting Dell U2412M monitor to MacBook Air M1 (2020)

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