Waking up from sleep mode problem

Hey guys I need your opinion on something, im sry for my bad English, normally I speak German :).

Im having trouble with my MacBook Pro 2017, I bought this device 4 months ago and already spoke to the apple support which considered me that this is a software problem.

You can't really explain this by text, you need to see it. I mean I got the answer of the apple support, but I guess they understood it in a wrong way, that this is just a blank display.

Maybe someone else got this problem or a solution for this. I already reset my CMS and NVRAM.

I hope someone could help me.

Edit: I forgot that if you open the Macbook this grey pixel screen stays for a second or two and then you can use it like normal.