Need some help figuring out if this laptop has a failing gpu with artefacts or it is just the display

[MagePepsi]

Hello there beautiful people of this forum, I need an advice, an odd one, from the experts of this forum(I clearly am not ahahah), sometimes on my facebook marketplace sections some bargains pop up and I have to decide wether or not to take some risk to take home laptops like this: this guy has a clevo workstation laptop and says that the screen has some orizontal Lines that one day just showed up, before it was just one and then they become two and showed up in a different place on the screen, he says that it is a problem on the ribbon cable of the display, my question is... Is it really this? Or it is more likely to be a gpu artefact because it is failing? Here are some pictures, can you help me figure out? The price its just too damn good, of corse thanks for the help! 

[TrigrH]

i'm 80% sure thats the display or display cable.

[MagePepsi]

Thanks for the reply! You were right! I've purchased the laptop and it was indeed a screen problem! Thank you really!!