|Plug an external monitor into the VGA port of the laptop. You may need to switch the displays for your laptop to display to the external. To do this you will need to press the Fn key and the relevant key on your keyboard to switch displays. |
Once you have done this, if your external monitor DOESNT do the same as you laptop then it means that you have a screen and inverter issue. Cost is around £60 to £80 and fairly easy to do yourself.
if the external monitor DOES the same as your laptop then most likes have a grpahics card problem which is way more expensive and not somthing you can do yourself.
This should be your first approach, let us know what happens, and hoepfully we can advise further.