📢 Newsroom Update

Apple’s new MacBook Pro features the incredibly powerful M4 family of chips and ushers in a new era with Apple Intelligence. Learn more >

📢 Newsroom Update

Apple introduces M4 Pro and M4 Max. Learn more >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

display monitor

my LG monitor no longer works with my MacBook pro since losing power.


Posted on Jun 15, 2021 9:12 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 15, 2021 9:47 AM

1. Reset PRAM:  Reset NVRAM or PRAM on your Mac - Apple Support

     Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, 

     and recent kernel panic information. 

     The settings stored in NVRAM  depend on your Mac and the devices that you're using with your Mac.


2. Reset  SMC:   How to reset the SMC of your Mac - Apple Support   Choose the appropriate method.

    Quote:

    Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,

    and other features.


3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262

    To leave Safe Mode, choose “Restart” at the bottom.

    Quote:

     Safe mode prevents your Mac from loading certain software when it starts up, including login items, 

     system extensions not required by macOS,

     and fonts not installed by macOS. It  also does a basic check of your startup disk, 

     similar to using First Aid in Disk Utility

     And it deletes some system caches, including font caches and the kernel cache, 

     which will be created again automatically as needed.


 4. Display

Get help with video issues on external displays connected to your Mac

https://support.apple.com/en-us/HT201177


1 reply
Question marked as Top-ranking reply

Jun 15, 2021 9:47 AM in response to Roxxart

1. Reset PRAM:  Reset NVRAM or PRAM on your Mac - Apple Support

     Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, 

     and recent kernel panic information. 

     The settings stored in NVRAM  depend on your Mac and the devices that you're using with your Mac.


2. Reset  SMC:   How to reset the SMC of your Mac - Apple Support   Choose the appropriate method.

    Quote:

    Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans,

    and other features.


3. Startup in Safe mode. https://support.apple.com/en-gb/HT201262

    To leave Safe Mode, choose “Restart” at the bottom.

    Quote:

     Safe mode prevents your Mac from loading certain software when it starts up, including login items, 

     system extensions not required by macOS,

     and fonts not installed by macOS. It  also does a basic check of your startup disk, 

     similar to using First Aid in Disk Utility

     And it deletes some system caches, including font caches and the kernel cache, 

     which will be created again automatically as needed.


 4. Display

Get help with video issues on external displays connected to your Mac

https://support.apple.com/en-us/HT201177


display monitor

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.