LG monitor pixel issue with new Mac Mini M4 Pro

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Level 1

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LG monitor pixel issue with new Mac Mini M4 Pro

For a few years, I have used three LG UltraGear 32 2021 monitors with my 2018 Mac Mini i7 Intel chip computer. I just upgraded to the Mac Mini M4 Pro and connected these same three monitors. That day, one of the LGs started experiencing a blob pixel issue in the lower left-hand corner, which began shooting a white beam across the lower part of the screen. Within a short time, the entire screen went white, and well the monitor is done for.

My question is, did the new Mac Mini M4 Pro play a role in what happened to the LG monitor? I am curious before I purchase a new monitor: is there something I should look out for? Thank you.

[Re-Titled by Moderator]

Posted on Feb 3, 2025 02:51 PM

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Answer 1

den.thed

Level 10

88,954 points

Feb 3, 2025 03:59 PM in response to Stoph78

In detail, how are/were the three LG displays connected to the new Mac mini M4 Pro...?

Was the LG display that went kaput, connect to a TB/USB-C port with an adapter/cable or to the HDMI port...?

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Answer 2

Stoph78 Author

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4 points

Feb 3, 2025 06:04 PM in response to den.thed

The monitor that went kaput was connected to one of the USB-C ports in back with cable. The other two monitors, one is connected via the HDMI port and one is connected the same way the kaput monitor was via the USB-C port. Thank you for your reply.

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Answer 3

den.thed

Level 10

88,954 points

Feb 3, 2025 06:31 PM in response to Stoph78

Stoph78 wrote:

The monitor that went kaput was connected to one of the USB-C ports in back with cable. The other two monitors, one is connected via the HDMI port and one is connected the same way the kaput monitor was via the USB-C port. Thank you for your reply.

Does that display work if it is connected via the HDMI cable and port..?

If it does, then maybe just the USB-C to DisplayPort cable to that display went bad.

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Answer 4

Stoph78 Author

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4 points

Feb 4, 2025 12:30 PM in response to den.thed

It doesn't work if I connect it via HDMI, either. This was an odd experience, as these two LG Ultragears were bought together three years ago and have been kept well with no signs of distress. It's my first time using the new Mac Mini M4 Pro, and one of the monitors goes Kaput. I am not blaming my new Mac Mini; I am just trying to find what may have caused it. Perhaps it was the monitor's time to go.

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Answer 5

rkaufmann87

Level 10

148,080 points

Feb 3, 2025 03:29 PM in response to Stoph78

Not likely

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LG monitor pixel issue with new Mac Mini M4 Pro

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