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How come my LG monitor won't work in Mojave like it did before the upgrade?

Did the Mohave upgrade. Now my LG monitor will not work on my iMac, like it did before. What give Apple??

iMac 27″ 5K, macOS 11.4

Posted on Nov 2, 2021 8:17 AM

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Question marked as Top-ranking reply

Posted on Nov 3, 2021 8:15 AM

Hi maggySwim,


Thanks for using Apple Support Communities. It sounds like you’re having trouble with your external display after updating your Mac. We’re happy to help.


We suggest trying the steps outlined in this article: If your external display isn't detected or appears blurry on your Mac - Apple Support


Should the issue persist, please let us know more about what is not working with your monitor after updating.


Take care.

5 replies
Question marked as Top-ranking reply

Nov 3, 2021 8:15 AM in response to maggySwim

Hi maggySwim,


Thanks for using Apple Support Communities. It sounds like you’re having trouble with your external display after updating your Mac. We’re happy to help.


We suggest trying the steps outlined in this article: If your external display isn't detected or appears blurry on your Mac - Apple Support


Should the issue persist, please let us know more about what is not working with your monitor after updating.


Take care.

Nov 3, 2021 10:50 AM in response to maggySwim

maggySwim,


Thanks for getting back to us. Can you let us know what happens when you try to use your display now? Is it not detected by your Mac or something else? What is the exact version of your Mac? Check by clicking  > About this Mac (Upper left corner). What is the model of the LG monitor?


We look forward to your response.

How come my LG monitor won't work in Mojave like it did before the upgrade?

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