I have an Acer Aspire 5739g laptop.
My laptop's wireless was not working, so I opened the monitor to check the wireless cables and receiver. I pulled the monitor just a bit towards myself to see the cables on the backside of it. I decided that the wireless cables had no problem and closed the monitor. I then started my laptop again. All I see is white screen, no color or anything.
An external monitor works, but it only starts displaying after Windows user login.
What can be the reason of this problem? More importantly, how can I solve this problem?