i have a hp zd7260 us laptop .... when i turn my laptop on ... i cant see anything on the screen itself however if i plug an external monitor to it ... my screen shows on that .. i have formatted my pc sevral times its no use ... i also have an antivirus .... NOD32 ESET .... which hasnt detected a virus ... i dont think its a software problem ... i think the gfx card driver is the issue isnt working properly ....
PLZNOTE : when i play cs and change my driver video setting from software to openGL or d3d and restart my computer it works for a quite a while ... and then goes off again after some time
it also works when i flash my bios ...
but all of that is just temporary doesnt keep it on for long ..
If by connecting external monitor everything goes right then its not a software but a hardware issue which you need to take to a qualified technician or repair center to get it fixed.
well the part that it works when i play arround with the cs (couter-strike setting) in which u can change ur the screen settings ... makes me think its software ..
