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34WK95U-W with Macbook Pro 13 2018 Signal cutting out randomly

Hello everyone,  I have an issue with my newly purchased 34WK95U-W on a recent 13 inch macbook pro.

34WK95U-W with Macbook Pro 13 2018 Signal cutting out randomly

Posted on 2019-05-31 13:52:22 edited May 31 4K / 5K Monitors Vote Up0Vote Down
Hello everyone, 

I have an issue with my newly purchased 34WK95U-W on a recent 13 inch macbook pro. I am connecting the display with the usb-c thunderbolt3 cable. I experience random black screens where the monitor loses the signal for a second or two and then comes back. Does anybody else experience this issue? 

I have connected another PC through displayport and I have no issue there. I have taken the laptop to the apple store (with the cable) and everything seemed to work fine on a LG 27 inch monitor. 
I have cleared the NVRAM on my mac (https://www.ifixit.com/Answers/View/207503/My+mac+is+stuck+on+the+white+startup+screen). 

Sometimes the problem is goes away for a few hours. I think it might be related to whether the Mac is fully charged. However I am still testing this. 

I saw that the monitor had incompatibility issues with the macbook pro 15 (https://www.lg.com/ca_en/support/product-help/CT20098114-20150908277807-no-video) but thought I was safe with the 13 inch. I really like the monitor but when it is flickering randomly it becomes pretty much unusable. 

Update: 
Unplugging the monitor from power and then plugging back in seems to help. Plugging the usc-c in and-and out does not change anything. 

Any help, hints, suggestions much appreciated. 

Benjamin

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