Customer has a two year old HP Pavilion laptop running Vista, and reported that they could no longer see anything on the screen. During testing, I CAN see the backlight come on while it's up and running, and the backlight turns off when Vista shuts down, but I never see any video at all. However, if I have an external monitor connected, I see everything like normal.
I can't see anything in the BIOS that would affect this, and I'm assuming that an incorrect function key setting would surely not keep it from showing any video at all, such as during boot up.
HP wants $50 just to talk to me. I'm assuming this is a hopeless case, short of having the customer spend megabucks on a repair. So, before spending money with HP, I'm hoping to get some guidance here on a likely cause and/or approx. costs to repair--and whether that's even worth doing. TIA