#LG GAMING MONITOR VERTICAL LINES PROBLEM MODEL 27GN800-B

Sometimes when I power up this monitor vertical lines occurring all over the screen. After cutting power and turn on it again these lines still remain backside. Sometime after these vertical lines are disappearing and the monitor is starting to work normally. Changing input type DisplayPort to the HDMI or vice versa not fixing the problem. I am using two monitors. The other monitor just works fine. #lgturkiye