I have a Dell Inspiron 1564 laptop. It was working fine until yesterday night. Today morning when I tried powering up, the display was blank. It was blank, not black, i.e, it looked as if the laptop was off, the display does not light up at all. The power light stays on, the hard drive light turns on for a second and then turns off and stays off. I can hear the fans running. I tried connecting to an external display. I tried resetting CMOS(BIOS) by removing and reinserting CMOS cell. I tried reinserting RAM sticks. Nothing worked. Any suggestions?
Update: Just tested screen using LCD BIST(D + Power), got solid colors flashing, screen is working fine. So why is the display blank??