On my laptop HP Pavilion 13-b200np, I'm experiencing something very strange.
Sometimes, just sometimes, on startup, there is no image on the display at all. Not even the hp logo on boot. Just black. When I start my computer and this happens, there is no way image appears on the screen.
Then, sometimes, the computer starts normally, showing with the hp logo on boot and functioning as usual. When this happens, it works fine for as long as I keep the laptop running.
In either situations, if I connect an external monitor, the pc works as usual in the monitor. Meaning, everything is fine except the laptop's display when it remains black.
I've tried disabling fast-boot, resetting the OS, opening the computer and removing the RAM slots and cleaning the components and nothing seems to fix the problem.