12-02-2014 08:26 PM - edited 12-03-2014 02:03 PM
I have a E530 laptop about 18 months old with a completely black screen. At first I thought it was the typical motherboard issue - no start. But on a whim I plugged in an external monitor and voila, everything is back to normal on the external monitor. So it's clearly a problem with the internal display. How do I tell if it's a software issue or if the display itself needs to be replaced?