I have an HP Laptop i shut the computer down and upon booting up my log on lookednormal but after my screen is black. My screensaver is working on my 2nd screen and screenshot program is still visible - help please pleaseeeee
Connect an external monitor to the VGA port to make sure the computer and graphics card is otherwise working.
Typically the cause of the black-screen failure is in the inverter or the back-light tubes which are replaceable items. It's not a job for the squeamish and involves tricky disassembly of the computer, so if you're not confident in tackling the work, better to get a quote from an experienced service person