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Bruce Kieffer Author

Level 2

369 points

M1 iMac with LG 5k External Monitor Issues.

I have my LG 5K display connected to my M1 iMac using the Thunderbolt cable that came with the monitor. I have two issues: When I wake the Mac from sleeping the LG takes about 4 seconds to wake. Is there a way to make it wake faster? And, about 70% of the time it's much dimmer than it was when the Mac went to sleep. The Display brightness setting bar is at the same setting as it was previously, and all I need to do is click the "dot" on the bar to get the display to brighten again. Is there a way to fix this?

75UM6970PUB,

Posted on Oct 24, 2021 8:33 AM

M1 iMac with LG 5k External Monitor Issues.

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