The laptop still plays the sound and the display backlight is on but the video is not there. What can cause this? The display is newly replaced by me. The silver-colored part of the display at the bottom seems a little bit bent when I received it. And sometimes I hear a very small clicking voltage sound when the display goes off. I tried bending the LVDS cable manually to test the sensitivity and influence of it on the blackouts but nothing happened. Is the display damaged?