So I went to turn my brightness up after unplugging my laptop (Dell Latitude e6510) and when i clicked the brightness my screen went black, I just recently got this so I'm not exactly sure how it works. I've turned it off completely and then back on and the screen will turn on and work but while it's loading for lock screen it will flicker to a black screen for a second and then flick back on for a minute and then the screen will go completely black, my laptop is still on when it does this. I've turned it on without my charger cord plugged in and with it plugged in, it didn't make a difference. Is there an easy fix for this?