Persistent horizontal lines appear on iMac screen

Same issue here. iMac M1 2021, pre-ordered it. I've taken the best care of it, after all, it's just sitting on a desk. Seems like the display just spontaneously failed. This happened a week ago.

I don't know if I should replace the screen, because what if it happens again? I'm afraid it's the problem with the design of the screen and/or the computer itself, therefore a replacement may not completely fix the issue in the future.

Can we please get a response from Apple? This doesn't seem like it's an isolated issue, as evident from this thread. A lot of people are having this same problem. This makes me think it's a problem with the design or the manufacturing process.

I am now communicating with a senior advisor from Apple (Katerine) she sounds very professional and empathic and she acknowledges that something strange is taking place with so many cases.

I am forwarding the pictures and data to file a case and trusting the engineers who will review the case will take responsibility and hopefully this will be resolved not just for me but for all of us, please keep all your evidence posted here so they can see the pictures.

Same situation as well, bought mine in September 2021 and the lines started to appear in March 2023. At first I thought it was just me but seeing all the responses here, this is clearly not an isolated issue.

Was putting off sending it for repair since I was hoping the display will go back to normal by itself over time, since the lines tend to flicker and on some days they take up less of the screen.

However in April 2024, it got so much worse with the lines completely taking up the display, rendering it impossible for me to navigate or even use the computer itself.

Would like to ask if there’s a recommended adaptor or cable to connect my M1 iMac to an external HDMI display so I could access and back up my files? Much appreciated!

I have an iMac, bought in 2021. It has been perfect until today. Totally out of blue, flashing horizontal lines appeared in the screen. After a while, the lines "stabilized" and reduced to a single line (see in the attached photo). Apple, please help bring my iMac to normal. Thanks!

I have the same problem after 3 years of use. My iMac has been used carefully and everything works normally except for those black horizontal lines at the bottom. Apple, please!!!, help with this. We have relied on the quality of your electronic products when making these costly investments and I understand that it is not fair that you leave us stranded in this way.

Hello everyone,

I'm experiencing the same issue. After turning off my Mac one day and powering it back on the next, multiple lines suddenly appeared on the display. My iMac has always been up to date, and even after reinstalling macOS, the problem persists. I hope Apple issues a recall, as my computer is just out of warranty. This shouldn't happen to a €1700 computer that's only three years old.

unfortunately I'm having the same problem. Such a beautiful product at such a high price (at least in Brazil). Apple. please: let's recognize serial failure and provide the usual good customer service. thanks.

wow this is a very key information to me because it tells us its not just M1 (which I bought in 2021) but its also the new model 2024. This increases all of our cases - and this hopefully will become a well known issue and fixed for all of us!

In case Apple Requires proof of my case you can look up Case number 10********92. They can look this up from their back end and get clarity.

This should be very clearly proven so we can ALL get this resolved forever! :)

@allrigthty

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I have same problem. 2021 24 inch M1 Desktop Mac. Bought Dec 2021, lines turn up May 24. A little bit more than 2 years. Emailed Tim, hasn't gotten a reply yet.

I find recent apple products' built quality gotten worst. As example the Macbook light i bought 10 years ago last till today. The subsequent 2 macbook i bought, 1 died after a reasonable few years. And 2nd one the screen turned flakey but apple change the screen free for me credit to them.

But it's a worrying trend. If this persist.. i think i'll just stick to iphones going forward.

I'm having the same problem. I called apple service in South Korea 3 times and went to apple genius bar, but they couldn't solve it and only recommended paid repair. They asked for 850,000 won, which is the same price as a used M1 iMac. I used the iMac in a fixed position and didn't do anything to cause it to break down, it's so unfair. I don't know if I'll be able to buy a Mac in the future.

I’m experiencing a similar issue. I bought this iMac two years ago, and today, black lines suddenly appeared over 85% of the screen. It's really disappointing, especially considering how expensive Apple products are.

[Edited by Moderator]

I am facing the same issue, same model (M1 iMac 24", 2 ports), about 2 years old (purchased Feb 2022).

Hope Apple will do something about it. It is just unacceptable for us to pay an extra 700 just to extend the usage. Does that mean, for me to continue using this device, I have to pay 700 every 2 years?

Similar problem for me. Purchased 11th August, 2021. iMac 24" M1 Chip. flickering/ horizontal lines started coming up in the bottom half of the screen. It is definitely a common problem for this specific model. Let us see if Apple still cares about its customers.

Last year, my monitor is having the horizontal lines about 1/4 from the bottom. Just yesterday, the horizontal lines is between 1/2 to 2/3 of the screen. Not usable anymore unless using another attached monitor.

When will APPLE act and help us on these?