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Screen is going black for a very quick second

Why is my MacBook pro 2020 intel screen going black for a quick second? it is like you unplugged the power and replugged it again.

MacBook Pro 13″, macOS 11.4

Posted on May 26, 2021 5:52 PM

Reply
Question marked as Top-ranking reply

Posted on May 26, 2021 6:30 PM

jcambusa wrote:

Why is my MacBook pro 2020 intel screen going black for a quick second? it is like you unplugged the power and replugged it again.


Old issue, new issue, what changed?


Happens all the time, or on the odd occurrence—doing something in particular?



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262



Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Login and test. Reboot as normal. Caches get rebuilt automatically.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac

This will tell you if it a universal issue or isolated to your user/admin account. 



Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus



1 reply
Question marked as Top-ranking reply

May 26, 2021 6:30 PM in response to jcambusa

jcambusa wrote:

Why is my MacBook pro 2020 intel screen going black for a quick second? it is like you unplugged the power and replugged it again.


Old issue, new issue, what changed?


Happens all the time, or on the odd occurrence—doing something in particular?



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262



Takes noticeable longer to get to the login screen, does a 5 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Login and test. Reboot as normal. Caches get rebuilt automatically.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac

This will tell you if it a universal issue or isolated to your user/admin account. 



Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus



Screen is going black for a very quick second

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