1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.
NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.
If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.
donwoot7, please stop spamming the forum.
and look like you already fixed your issue http/www.tomsguide.com/answers/id-3818611/rid-pink-line-compurter-screen.html#21474511
iam not spamming the forum it was fixed a year later it came back so its not fixed