I am using a Macbook Pro (the 2015 model A 1398).
Just overnight my screen shows strange horizontal lines as this:
These horizontal lines are roughly gathered in the same place on the screen (on the top), and they may increase or decrease the numbers, from time to time.
I did not hit or hurt my Macbook Pro recently. Can someone give any advice on how to fix it? I had restarted, shut down and restart a few times, but the problem still persists.
Thanks experts for the help!