I know this is a very common problem that happens to people, but I'm not even sure what to do now. The monitor works on my laptop just fine, but yet it doesn't work on my computer. As I boot up the computer I can hear all the sounds like it would loading the desktop, but then the monitor doesn't work. I've tried replugging everything in, cleaning out the dust, taking out the graphics card and putting it in (Felt kinda stuck so I just left it alone). Does anyone have a solution to this problem, I would appreciate the help. Thank you. I could try to answer all the questions that is needed to help me fix this problem as well :3.