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macos – What should I do when main display shows slim horizontal lines on a Macbook pro 2017 touchbar model?

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MacBook Pro (15-inch, 2017) with touch bar


Radeon Pro 555 2GB
Intel HD Graphics 630 1536 MB**

I have horizontal lines all over my macbook screen. The first time this problem occurred was when I unplugged my macbook from the monitor (when the macbook was connected to the monitor it was closed, the image was only displayed on the monitor), then when I opened it again these lines appeared. When I connect the macbook to the monitor, the image is displayed as it should be. what should I do?

Now I see that it also leaves a trace of the recently opened windows

I discoverd one more strange thing , when I close my laptop and it is somewhere less than 45 degrees, the stripes disappear, what can you mean

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