You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

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

External monitor flickering

Laptop: MacBook Pro 15" 2019

OS: macOS Catalina 10.15.7

External monitor: Dell U4919DW


My external monitor flickers when I connect it to my MacBook Pro. I have tested both its USB-C input and DisplayPort input.


Is this a known issue? Is there a definitive fix available for it?


Thanks.

Posted on Feb 22, 2021 12:27 PM

Reply
Question marked as Top-ranking reply

Posted on Feb 24, 2021 9:57 AM

Hey Batmanian,


If we understand correctly, the external monitor will flicker when it is connected to the MacBook Pro. We would recommend you use this article to help troubleshoot the issue.


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


Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.


Thank you for using Apple Support Communities. Have a good one.

3 replies
Question marked as Top-ranking reply

Feb 24, 2021 9:57 AM in response to Batmanian

Hey Batmanian,


If we understand correctly, the external monitor will flicker when it is connected to the MacBook Pro. We would recommend you use this article to help troubleshoot the issue.


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


Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.


Thank you for using Apple Support Communities. Have a good one.

External monitor flickering

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