No Input Problem

So yesterday I dropped my phone on my PC from about a foot away and my monitor froze and started making a loud buzzing noise. So I turned everything off and back on and I could no longer get a signal on my monitor. No it’s not my cords because I tried using them on something else and I have already tried doing a hard shut down. Any ideas?

 

What type of "PC"?
If I had to guess, I'd say laptop. And if you heard a "loud buzzing noise", I'd say something was damaged. Warranty support?