Green lines appear quickly and device restart
I had this problem a while ago and i live with it. Problem some and dissappear.
You can watch the video link.
I chanhe the software and the same problem appeared. I install the stock Rom and problem did not disappear. I tried other Android roms and same problem. Most of the time problem appeard when battery is low. Most of the time when problem happens my device restart.
Samsung galaxy tab s 8.4 lte