Horizontal Lines on Screen of iMac, 24", 2021

+ 1 I keep watching for it in the extended Apple Service Programs.

Apple Service Programs - Apple Support

Hi,

This is a common issue on new iMac. I hope Apple would recall program about it.

You are not speaking to Apple on these forums, they are the hosts however they DO NOT read or participate in user to user forums.

If you want your voice to be heard please post at www.apple.com/feedback. They will not answer you directly however your post will be read.

Same issue here. iMac 24" M1 2021. Used for 2.5 years. The Apple Store staff suggested me to leave a message in Apple Feedback and let the people higher up look into the issue. The staff can't do anything if it is not in the Apple Service Program.

Submit feedback to Apple at www.apple.com/feedback and then make an appointment at your local Apple Authorized Service Provider have it serviced and repaired. Apple has not announced any repair programs for what you are experiencing, if/when they do your out-of-pocket expense will be reimbursed.

For additional context, I have the following iMac:

iMac (24-inch, M1, 2021)

• Ports: Two Thunderbolt / USB 4 ports, Two USB 3 ports
• Chip: 8-core CPU (4 p-cores, 4 e-cores), 8-core GPU
• Storage: 1TB SSD storage
• Memory: 16GB unified memory

Ordered on: May 12, 2021

In terms of my exact symptoms, I don't think it's dead pixels. When I run a dead pixel test, I see two distinct issues:

• Along the bottom rows of pixels, there are three or four alternating black horizontal lines extending across the entire screen, just below the dock
• In the lower right section of the screen, from the base of the dock up to about 20% to 25% of the display, thicker light grey lines are visible, primarily on the right side. These lines add a textured appearance to the folders in the dock and are especially noticeable on an all-white background

Identical problem here. 24" M1 iMac is 3 years & 2 months old (so, just outside warranty period).

Going to call Apple today.

Same problem. Same screen lines. Same response from Apple Store. Not a manufacturing issue. You just need a screen replacement. That’ll be £630 please.

This definitely needs to be an extended Apple services program. Asap.

iMac screen failure..

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Persistent horizontal lines appear on iMa… - Apple Community

I'm experiencing the exact same issue on my iMac, which I bought in 2021. The lines started appearing just a few days ago.

I am experiencing the exact same issue. Check out the bottom of my screen (image)

[Edited by Moderator]

Today got significantly worse, now it's alternating black lines almost up the whole bottom third of the screen!

Same here. I bought it in mid-2021 and just called Apple for help, but they gave me the same answer as in other posts. So frustrating… 650 USD?! bloody ****...

Exactly the same issue happened starting yesterday, been talking to Apple support and kept asked me to bring it over to Genius Bar

[Edited by Moderator]