2015 27" iMac display isssue (with photos)

[MattAttack]

Hi all, long time lurker, first time poster!

I've recently purchased a 2015 27" iMac with i7, 512GB SSD and M395x GFX card.

The display has some strange artefacts behind the glass, almost like screen burn/ ghosting but not? I've tried all the recommended tests to alleviate this but have had no joy. Its most prominent on a dark grey background and not visible if I set my desktop background to white or black. It shows up almost like a zigzag rather than a hard straight line.

Sorry, the phots aren't great and it looks worse to the naked eye.

Can anyone suggest what the issue might be before I send it off for repair?

Thanks in advance!

 

[MattAttack]

Has anyone seent this before?

 

[Sid The Kid]

Hello,

I already saw some posts about this issue here on the Forum so you're not the only one. I don't know much about it but I'm surprised people didn't reply. I'm sure someone will help you.

 

[MattAttack]

Hello,

I already saw some posts about this issue here on the Forum so you're not the only one. I don't know much about it but I'm surprised people didn't reply. I'm sure someone will help you.

Thanks. I did do a bit of research but couldn't find anything similar but I may have been searching for the wrong thing!

 

[Sid The Kid]

Thanks. I did do a bit of research but couldn't find anything similar but I may have been searching for the wrong thing!

You're welcome. What about contacting Apple Support?

 

[MattAttack]

You're welcome. What about contacting Apple Support?

I'll try that today. It has AppleCare but it's still registered to the previous owner. Hope that won't be a problem.

 

[mbosse]

I'll try that today. It has AppleCare but it's still registered to the previous owner. Hope that won't be a problem.

Should not be. Apple Care is tied to the machine, not the owners.