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restless_honey

macrumors newbie
Original poster
Dec 29, 2025
1
0
Hi all!
I recently noticed something on my new macbook that I’m not sure is a defect or just a characteristic of the mini-LED XDR display.

On dark backgrounds, moving the mouse creates a strange glow or halo effect around it. It’s noticeable at different brightness levels and in different lighting conditions. It happens in all apps and on any dark background (it's less visible on black)
If I switch the display settings from Apple XDR Display (P3-1600 nits) to Apple Display (P3-600 nits) the effect almost disappears. Changing refresh rates (ProMotion → 60Hz, or opposite) also reduces it. Switching these same modes in the opposite direction also works. Basically, it seems it doesn’t really matter which mode you switch to or from, what matters is that the display settings are changed.

But! The effect returns after restarting the Mac.

Things I’ve tried:
Checked with another user account
Safe Mode
Recovery Mode (background is black, so effect is less pronounced)
MacOS updating to latest Sequoia
So nothing has changed

The macbook has never been dropped or damaged, and I handle it very carefully. I’ve also seen discussions here and Apple forum suggesting this might be a feature of M4 mini-LED displays, but some people had their machines replaced.

I recorded a video to show the issue. At the beginning of the video, you can see the problem right after turning on or restarting the Mac, and later you can see it after switching any of the modes described above, it's almost disappeared. Of course, the phone camera exaggerates it a bit, but still.

Have you experienced this maybe?

 
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