HP Pavilion dv6500 (shown elsewhere in laptop. as dv6636nr), running Vista home premium, originally brought to me, presenting as: had loaned to friend to do a paper, when returned, he went to 'boot' and No Display at all....not even a faint image. Yet you can 'hear' it boot into Vista.
Have tried new 15"LCD, tried new display cable, new inverter, checked all connections for clean and proper seating. Tried the power button, battery out, cord off / on tricks - no joy.
Other friend suggested perhaps stuck in 'presentation' mode ? Fruitlessly searched for comb. of keys to disengage - no joy. Tried Fn+F5, Fn+F8, Shift+F5, and so on. Probably have changed so many system things it's not funny.
But it still gives a perfect image on an external monitor.
What am I Missing ????