Is nearby a approach to know if my laptop's video card is connected to motherboard short disassembling it?

Answer:

Right click My Computer, Manage, Device Manager on the vanished, Display adapters. If anything has a red X on it, receive sure it is enabled then budge to your computer's manufacture's website and download the driver for your graphics card. If that doesn't work, then it is probably an physical defect.
i have no notion!
Since it is a laptop then most likey it is, give or take a few 95% or more are.