This phenomenon is that the screen is very large, which may be the problem of the motherboard. Are the external screen and LCD screen the same? It is a typical screen door phenomenon. This can only be used or modified. If it is still under warranty, you can change the screen directly for free after sale.

If you have any questions, please feel free to ask me to answer the hardware faults of various brands. I can help you in Tianjin. My contact information is in the user profile. Easy-to-repair notebook maintenance is a national chain of other provinces. I suggest you go to the easy repair website and find a local franchisee to help you repair it.