Vertical lines on my laptop display?
Some times it turns on with vertical lines on display but not all time sometime it works OK when the vertical lines are happened and i connect to another LCD the display on another LCD will be OK ?
Can someone tell me the issue?
No good way to know what the issue is unless you start checking things. Start with the connections to the motherboard from the screen. If that does not help you may need to replace the panel. I have seen issued with inverters cause this, if your system has one. If it's not LED back-light, you should try another inverter.