Clamshell mode does not work

With an external monitor connected via USB C, a bluetooth apple keyboard and a magic mouse connected, when I close my MacBook pro lid, the external monitor does not turn back on. How do I fix this?


MacBook Pro 14″, macOS 12.6

Posted on Jun 30, 2023 05:03 PM

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Posted on Jul 25, 2023 07:16 AM

Same problem here... MBP 14" M2 Max. Everything was fine until Ventura 13.4.1. No change in 13.5.

Apple - please fix this!


Kind regards,

Robert

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6 replies

Jun 30, 2023 05:28 PM in response to monicovs

Hi,

Following method could help your issue.

  1. Connect your external display to power.
  2. Use the AC adapter to plug your MacBook in.
  3. Connect the external display to your Mac using the ports. ... 
  4. Turn on your external display.

If it doesn't help, try to following method.

  1. Open System Settings.
  2. Click Lock Screen.
  3. Beside Turn display off when inactive select Never.
  4. Also click Never beside Turn display off on power adapter when inactive.


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Clamshell mode does not work

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