Persistent horizontal lines appear on iMac screen

I am reaching out to share an ongoing issue I, along with several other users, have been experiencing with our iMac 24-inch models, and to seek a collective resolution.


Problem Description:

  • Persistent horizontal lines appear on the screen, which significantly hampers the usability and visual appeal of the device.
  • This problem arises without any physical damage, and despite the stationary nature of the device.


Steps Taken:

  • Connected to an external display: The external display works fine, indicating the issue is with the iMac's internal display.
  • Reinstalled the OS: The problem persisted post reinstallation.
  • Avoided operating the iMac for a week: No change in the situation.


Concerns:

  • The cost of screen replacement is high, and there's no assurance that it will resolve the issue permanently.
  • The quality concern is alarming especially for a brand that positions itself as a premium segment player.
  • The support received thus far has been unsatisfactory, with no definitive solutions provided apart from a costly screen replacement suggestion.





Please do not ask us to visit to service center and replace the screen for 650USD + , problem happens mostly after warranty.


[Edited by Moderator]

iMac (M1, 2021)

Posted on Oct 21, 2023 10:40 AM

Reply
Question marked as Top-ranking reply

Posted on May 26, 2024 06:08 PM

I just received my repaired Imac. every thing looks beautiful and it is just like new! It only took 3 days total to fix and I paid zero :)


I am very thankful.


Overal process:

1. Kept apple in good consciousness and practiced released judgment and frustration and remained in forgiveness and non-attached frequency. 2 Reached to chat support and requested senior advisor 3. Had a genuine conversion about my appreciation for apple and how there is a case of manufacturing that can be happy to any company and requested for them to investigate this thread - as it is well documented. (Thanks to all of you) 4. She forwarded it to engineers and requested the photos and files from me, and within a few days had been approved for repair.


I trust this can be done for all the other people with the same issue and hopefully in the future if it happened again they can upgrade us to a newer model. May be we can all get an M3 ? :P


Talk soon!

Similar questions

401 replies

Jun 24, 2024 04:27 AM in response to latVm

hello!

i have exactly the same issue since yesterday, I bought my imac (24 inch, M1, 2021) on 5March 2022 and yesterday I experienced these color lines while I left my computer on for awhile… I just bought it for less than 3 years??? and I am still covered under warranty, I am afraid that after repair the same issue is going to come back up again….

Nov 22, 2024 08:46 AM in response to latVm

Unfortunately my iMac 24" M1 purchased at Apple Store on 9 August 2021 suddenly developed same screen issue (half screen KO and continuous huge flickering).

Erasing HD and installing Sonoma fresh copy didn't fix.

Contacted Apple Italy they told me that as it is out of warranty payment for repair is up to me.

This is obvious, but as I'm not the only one suffering this fault and IMHO it's a building defect I hoped Apple would have had a special attention to my case, but no hope.

I had to purchase a new Mac Mini M4 and my loved iMac 24 is on its way for rubbish, 1700 euros lost.

Never more an iMac !

Really disapponiting

Giorgio

Nov 23, 2024 09:25 AM in response to latVm

I purchased my iMac directly from Apple on 7/12/21. This was my first Mac. On 11/7/24 my screen went bad exactly as described here. Went to Genius Bar and was diagnosed with a defective display needing an out-of-warranty repair. I didn't get an exact cost, knowing I did not want to go that route. I have mothballed the iMac and have sought an alternative solution. Of course, this product failure is not acceptable and I am hoping Apple provides a solution.


Persistent horizontal lines appear on iMac screen

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