>>1Could you describe the problem in detail? I'm not really sure what you're asking. Perhaps you could record a video on your phone and upload it?
Q: What cord did the dog pull out? May* have something to do with it.
The problem probably lies with the computer smashing against the ground, however. What probably happened is that something fell loose on the mainframe of the computer, perhaps the graphics card. If you unscrew the computer to get to the inside, check to make sure everything's in place.
Q: Also, is it a laptop, or a desktop?
Q: Does it have a tower?
Q: What model computer is it?
Q: Is it a windows, mac, or linux?
I'm sure if you gave more info I (or someone else here) could figure out the problem faster. Hope what's in this post helps though, I'm not going off much.