Lg monitor wakes everiy 10-20 minutes and Mac mini

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Level 1

4 points

Lg monitor wakes everiy 10-20 minutes and Mac mini

I have a Mac mini M1 and a LG monitor 27UL850. When the monitor is connected to the Mac mini with the USB-C cable, I have the following problem:

When the Mac mini is in sleep mode, the monitor turns on and off every 10-20 minutes. There is nothing special on the screen and the Mac mini stays off. There is some activity in the log files, but the monitor should not rely on that. I find this problem very annoying and unnecessary.

Via HDMI everything works as it should, but then I cannot use the USB ports on the monitor.

I have already reset the Mac mini to factory settings a few times (wipe disk and reinstall OS) but without success. The problem occurs immediately after a clean install. Then, all in all, I had more than four hours of support from Apple Support without the desired result.

Does anyone recognize this problem? Or better, has someone a solution?

Posted on Feb 25, 2021 11:18 AM

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Answer 1

den.thed

Level 10

90,970 points

Feb 25, 2021 1:09 PM in response to WLTN

Try disconnecting the USB devices from the monitor's USB ports one at a time and test.

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Answer 2

hcsitas

Level 6

13,964 points

Feb 25, 2021 12:31 PM in response to WLTN

Disable sleep, it’s a non-feature for later Macs.

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Answer 3

WLTN Author

Level 1

4 points

Feb 25, 2021 10:43 PM in response to WLTN

Thank you, den.thed. I have already tried this but without the desired result. Clean installation without peripherals and without Apple ID is also not the solution. BT off on keyboard and mouse is also not the solution.

@hvsitas, thank you for your comment, but this is not the solution for me.

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Answer 4

hcsitas

Level 6

13,964 points

Feb 25, 2021 11:59 PM in response to WLTN

Fair enough but am curious, why not?

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Lg monitor wakes everiy 10-20 minutes and Mac mini

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