Persistent horizontal lines appear on iMac screen 2025

OP: latVm

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.

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Since I can no longer reply to the ongoing thread, I'll have to create a new one to continue expanding on this issue. The issue occur just 3 days after my warranty expired - what luck!