I have a Compaq CQ40 Laptop. I cannot see anything on the display except some black/white lines or a black screen. After searching, I found that there is a tiny gap in the screen. I had changed the panel before a few months ago. I think it was not properly closed after repairing. It works fine when I connect to external source or It will work properly if i hold the top of the screen tight with my fingers and when I leave the fingers from the screen, whatever in the screen remains unchanged .
Please forgive if my question is a stupid one. I'm really weak about the laptop hardware issues. Can anyone help me to identify the problem and resolve it?
Thanks in advance!