White and green line in the bottom of the screen

[MathiasLa]

So when I've had my macbook pro turned on for some time, this grey/white/green line turns op, on my screen. Its right where the maximized windows are.

http://Zeroup.dk/get/line31.jpg

What could this be?

 

[ISKOTB]

looks like your issue https://forums.macrumors.com/threads/992825/
Power if off then back on and see if it goes away. if not then it need to be repaired

So when I've had my macbook pro turned on for some time, this grey/white/green line turns op, on my screen. Its right where the maximized windows are.

http://Zeroup.dk/get/line31.jpg

What could this be?