Persistent horizontal lines appear on iMac screen

My company is a huge Apple user, and their lack of a resolution to cover the replacement or repair of the M1 iMac screens which are clearly a defect is making us consider another vendor for our hardware going forward.

What makes you think I'm on Apple's side?

I just posted the facts about Apple Engineers not being in these forums and when to "complain"/report your problem. Remember the squeaky wheel gets the grease.

You got into a situation but don't shoot the messenger.

iMac Feedback was no help to me. I was even told that someone would get back to me with a solution! That never happened. I love Apple products. I have been using all of them for years. This issue with a computer that was barely one year old is extremely disappointing. Apple MUST come up with a solution, as it seems to affect thousands of users. Come on, Apple. I mean, come on.

Hi everyone. I've decided i'm not buying a new Apple product until Apple make on this problem what it's correct, because they know that this is an hardware design problem and nothing else.

So Apple must organize a service for everyone affected.

Waiting.

This same thing happened to me as well. I also reported it to Apple Support the same way and they gave me the internal tracking reference for this display issue. After that, thankfully my iMac got fixed. So yes, definitely report it through the Apple Support link shared above. https://getsupport.apple.com/products https://choosemaid.com/ Product Feedback - Apple

My iMac, purchased at the beginning of 2022, started this issue out of nowhere today. Ran through all the possible checks provided online before I came across this thread. Posting to make sure Apple knows that there are so many of us out here who have been sold the same defective product with little to no solution.

Although this is terrible happening to a small subset of users, it doesn't seem a large enough issue for Apple to do a Repair Program. If it was the number of posters on this would be in the thousands and thousands of post and reports... I wish I know what the threshold is for this particular M1 screen issue. I mean clearly it's a defective component from production thats causing this. Just keep calling Apple Support and not just posting here in community forum. Call Apple support and stay on top of your case submitted to them.

Do what hcsitas suggested: report the issue to Apple frequently and take it in for a free diagnostic check. That will confirm that it's a hardware problem and you can then go from there.

I am also having the same problem about 2 years after buying 2021 imac. If someone has a resolution for this problem, can you please share it asap? Thank you so much!

Me too!!

It happened on 2024/05/04. I bought it in September,2021. I connected it to an external display and put it on the floor. I will never trust iMac.

I also have the same problem, Imac M1 bought in August 2021. horizontal lines appeared while I was using it. I tried leaving it off and then turning it on but the lines remained

I'm having the same problem!

Turkey Support Team doesn't even know about it...

I am referred to so-called “authorized service” commercial businesses and there is no support.

This has also happened to my 24" M1 Mac, which I purchased in 2021. It definitely seems like a manufacturing issue, so I’ll be reaching out to Apple as well. Thanks for this thread—very helpful!

I was told to bear the repair cost 100%. After a few months of lines appearing and flickering, my screen has turned completely blank!