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.

Thin Green Line on iMac screen

I saw a post regarding a thin green line appearing after someone did a Bootcamp update and I also have this issue.


I want to sell my 2017 iMac and will disclose the issue but I want to know if the issue will get worse.

iMac 24″, macOS 13.0

Posted on Dec 13, 2022 12:14 PM

Reply
Question marked as Top-ranking reply

Posted on Dec 13, 2022 3:35 PM

Prepare the iMac according to this Apple document, What to do before you sell, give away, or trade in your Mac - Apple Support, and see if the line remains. It could be a failing GPU.


1 reply

Thin Green Line on iMac screen

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