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For the past 2-3 days I have been seeing a greyish bar on my M1 iMac's screen. After a few hours the grey bar starts to blink on & off, sometimes disappearing entirely but reappearing again after a 'wakeup from sleep'.
What exactly is happening here? And what can be done to fix this issue?
And yes, I did the obligatory restart/shutdown etc. but this grey bar still appears.
iMac 24″
same here. Less than 2 years old. Extremely disappointed at Apple. Hopefully they proceed with a big global replacement program like they did with the AirPods Max.
Apple does not address or answer questions here in the communities user to user forum.
What you need to do is contact Apple Support for assistance.
Or schedule an appointment at your local AASP.
Did you solve this problem? More and more users are reporting similar issues with 24' M1 iMac.
Had similar issues. A grey bar appears at the bottom of the screen and blinks. Many people had the same issue and Apple just did not fix it.
[Edited by Moderator]
Sadly this is a hardware failure. Not software. It will require screen replacement.
I have the same issue. My mac suddenly has a half horizontal grey screen and blinking nonstop. What is happening? Why is this happening? It’s Imac M1 2021 24 Inches. Please help.
I have had the same issue - I have seen other users of 24" M1 IMacs have had this issue after 2/3 years use - I have had to have an out of warranty r. epair which will cost me over £600.
Horizontal grey bar on my M1 iMac screen
