Chosen Solution

Hello, I got vertical lines and my screen splits sometimes. It happens when i use more applications simultaneously or sometimes only when i open just one application. I tried changing RAM memory but same happened. Tried with external monitor and it happens on my macbook, external monitor is ok though. It also reboots by self, and sometimes i have to shut down and it takes time to get into OS and function normally.

This is not your LVDS cable. This is characteristic of a dying graphics chip. Very common on this model. An LVDS cable will not fix your issue.

Sounds as if the lvds cable going from your mainboard to the lcd is failing.. if the system is rebooting randomly I’ll also advise looking at your gpu.. that model was known for failure along those lines..