Not turning on the LG ultrafine display

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Level 1

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Not turning on the LG ultrafine display

I was using first version m1 mac mini with LG UltrFine 24". I moved the setup to another room and for some reason, the display stopped working. Now, I am able to connect this display to other computers and it works. But this mac mini shows blank screen - no output. Tried connecting the mac mini to a hdmi tv, it detects it but with a flicker in which case I am unable to do much as flickering shows a picture for 1 sec before turning off for another 30 seconds. Help please.

Mac mini 2018 or later

Posted on Aug 18, 2022 10:33 AM

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Answer 1

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den.thed

Level 10

88,798 points

Aug 18, 2022 10:43 AM in response to jmdvm87

Hmm... try this,

Turn the Mac mini off by holding the power button for 10 seconds and disconnect the display(s).

Then turn the Mac mini back on, wait 30 seconds or so and then reconnect one of the displays.

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Answer 2

den.thed

Level 10

88,798 points

Aug 18, 2022 11:08 AM in response to jmdvm87

Strange indeed. Is the light on the front of the Mac mini on?

If not, check the power cord on the back of the Mac mini, the surge protector if you use one and then try another outlet in that room.

Other than that, maybe try moving it back to it's original location to see if it works there.

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Answer 3

jmdvm87 Author

Level 1

8 points

Aug 18, 2022 10:50 AM in response to den.thed

Didn't work.

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Answer 4

Aug 18, 2022 12:23 PM in response to jmdvm87

Not sure if this will help. I have the same display and the mac mini wants to default the refresh rate to 75mz in display settings. I changed it to 60 and its fine.

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Answer 5

Aug 19, 2022 05:19 AM in response to jmdvm87

Have you tried a different cable?

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Not turning on the LG ultrafine display

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