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The external monitor, which is connected to my MacBook Pro, is blank and the power button is flickering. How can I fix this please?

The Mitsubishi external monitor, which is connected to my MacBook Pro, is blank and the power button is flickering. How can I fix this please?

MacBook Pro 15″, macOS 12.4

Posted on Sep 5, 2022 11:41 PM

Top-ranking reply

WheelieNick

Level 8

39,777 points

Posted on Sep 6, 2022 12:45 AM

If your display is blank or not detected

Try these steps if you don't see an image on your display.

Check your cable or adapter

Disconnect the cable from your external display from your Mac, then reconnect it. If the cable from your external display doesn't connect to the ports on your Mac, you can use a USB-C or Thunderbolt adapter. If you're using a USB-C or Thunderbolt adapter to connect a display, the adapter must be compliant with DisplayPort Alt Mode or Thunderbolt / USB 4.

Check how many displays you can connect

If you're connecting multiple displays to your Mac, use the Tech Specs page to find out how many external displays your Mac supports.

Choose Apple menu  > About This Mac, double-click your serial number, then press Command-C to copy it.
Go to the Tech Specs page, click the Search Tech Specs bar, press Command-V to enter your computer's serial number, then click Search.
Click the specs page for your Mac. The number of displays your Mac supports appears under Video Support or Graphics.

If your external display isn't detected or appears blurry when connected to your Mac - Apple Support

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The external monitor, which is connected to my MacBook Pro, is blank and the power button is flickering. How can I fix this please?

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