My question is what exactly do a laptop lcd video cable do? Apart from taking data from board to lcd and back, does it also act as an identification mechanism?
Sony vaio laptop, m/b and graphics card supposedly support 3 different lcds, each has its own video cable according to Sony, however they look identical to the naked eye.
How does the motherboard know which lcd is connected to it? Is that the function of the video cable?
I removed the lcd panel and replaced it with one with a different resolution but the motherboard did not detect it correctly. (See older thread. Link) Haven't yet changed the video cable - waiting for it to be delivered.