How to Fix MacBook Pro Sleeps When Lid Is Closed With External Monitor

How to Fix MacBook Pro Sleeps When Lid Is Closed With External Monitor: There are a few steps you can try to fix a MacBook Pro that sleeps when the lid is closed while an external monitor is connected:

  1. Check the settings: Make sure that your MacBook is set to stay awake when the lid is closed. To do this, go to System Preferences > Energy Saver and look for the “Put the computer to sleep when it is inactive for” setting. If this setting is set to “Never,” your MacBook should stay awake when the lid is closed.
  2. Check for updates: Make sure you have the latest version of macOS installed on your MacBook. You can check for updates by going to System Preferences > Software Update.
  3. Reset the SMC: The System Management Controller (SMC) is responsible for controlling power and other low-level functions on your MacBook. Resetting the SMC might fix the problem. To reset the SMC on your MacBook Pro, follow these steps:
  • Shut down your MacBook Pro
  • Unplug the power cord
  • Press and hold the power button for 10 seconds
  • Release the power button
  • Plug the power cord back in
  • Turn on your MacBook Pro
  1. Reset the NVRAM: The Non-Volatile Random Access Memory (NVRAM) stores certain settings related to your MacBook’s display, audio, and other hardware. Resetting the NVRAM might fix the problem. To reset the NVRAM on your MacBook Pro, follow these steps:
  • Shut down your MacBook Pro
  • Press and hold the Option, Command, P, and R keys simultaneously
  • Turn on your MacBook Pro
  • Release the keys after about 20 seconds
  1. Check for hardware issues: If none of the above steps work, there might be a hardware issue with your MacBook. In this case, you may need to take it to an Apple service center for further diagnosis and repair.

I hope these steps help fix the issue with your MacBook Pro sleeping when the lid is closed while an external monitor is connected. If you continue to have problems, it might be helpful to seek additional assistance from Apple or a qualified technician.