Thin white lines appearing on iMac screen

I am seeing a few very thin white lines when on white screen. I have latest upgrade for my mac 13.7.6

[Re-Titled by Moderator]

Original Title: Mac screen - thin while lines

iMac 21.5″ 4K, macOS 13.6

Posted on Jun 20, 2025 3:40 PM

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18 replies

Petra01 Author

Level 1

63 points

Jun 21, 2025 1:34 PM in response to den.thed

Thanks everyone - it not bad at all - I'll probably buy a new imac when it all fails - my Time Machine works well!

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Old Toad

Level 10

215,094 points

Jun 21, 2025 3:15 PM in response to Petra01

Use the  menu "About This Mac":

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Petra01 Author

Level 1

63 points

Jun 21, 2025 3:54 PM in response to Old Toad

[Edited by Moderator]

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Thin white lines appearing on iMac screen

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