Laptop Screen Not Working

[TheAndyPanda]

Hi everyone,

 

I have an ASUS N55 SF, which is getting on in years. A couple months ago the display stopped working but the laptop still worked. I knew this because I hooked it up to a projector and everything worked. My buddy and I took it apart to see if anything was visibly wrong. We unplugged and replugged the connection from the display to the motherboard, booted and it worked. We weren't sure if it was or a happy coincidence, but we let it be. Today it stopped working again, and so I opened it up and did the same thing with no success. I can still output to an external monitor, but no display on the screen, it doesn't even look like the backlight is turning on.

 

Any ideas?

 

Thanks

 

EDIT: I (rather unintelligently) unplugged the screen connector while it was on to see if it would still output to the external display. The whole laptop shut down and it won't turn back on.

[Enderman]

In the monitor settings is it on the correct input?

Have you tried different cables?

[TheAndyPanda]

In the monitor settings is it on the correct input?

Have you tried different cables?

No the external display always worked, it's the screen on the laptop that doesn't. As you can see by my edit though it is now a different problem.