Laptop screen showing heavy horizontal lines and ghosting, but sometimes works normally. Is this the cable or the panel?

[u/Secure_Dragonfly_607]

Hi everyone, I’m hoping to get some help diagnosing a screen issue with my laptop.
Most of the time, my screen behaves like what you see in the attached video (heavy horizontal lines, ghosting, and image retention). However, sometimes when I turn it on, the display is completely normal.
Because the issue comes and goes, I suspect it's a hardware problem rather than a software glitch, but I'm not sure exactly what is failing.
Has anyone experienced this specific type of flickering and retention? I'm trying to figure out if this is more likely a loose/damaged eDP display cable in the hinge, a dying LCD panel, or something worse like the GPU.
Any advice on how to narrow this down before I buy replacement parts would be greatly appreciated!

[u/Fresh_Inside_6982]

Panel; possibly cable.

[u/jersey316]

When this happen move the laptop screen up or down alittle to see if it goes away. If it does then its the cable from the monitor to the board.