Question Screen goes black randomly on LG 43UD79-B monitor ?

wondrk

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Mar 6, 2021
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I bought the LG 43UD79-B monitor few months ago and I'm using it with a 15-inch 2016 Macback Pro running macOS High Sierra 10.13.3. The screen has been going black for 3 to 4 seconds randomly, sometimes few times a day and sometimes few times an hour.

I have tried a lot of cables already so I don't think it's the cables. I first tried the DP cable that comes with the monitor with a USB-C adapter. Then I bought several premium DP-to-USB-C cables.

I just started using a HDMI-to-USB-C cable today and so far I have not seen the problem yet. But I would like to use the USB-C to USB-C connection as that's more convenient.
 
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