Windows 10: My pc breaks when plugging in second in hdmi

So. Since yesterday everything was fine. Now, when I try to plug in my second monitor, my first monitor goes black, and I can’t press anything. Windows key p doesn’t work, headphones and mouse don’t work, and when deplugging the hdmi cable, it still doesn’t work. I even tried to just plug the hdmi cable in, without the tv, but the same happens. Help me pls

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:)

 

Why exactly is ATi considered be better at HDMI?

I plug my HDMI cable into the card, then into my TV. Those are the steps that I have to do. All the steps you list make absolutely no sense to me.

 

Why exactly is ATi considered be better at HDMI?

Sound works fine only issue with me is underscan when connecting to my tv.

 

HDMI: Not plugged in

So from day one, my second HDMI port hasn't been working. I plugged in my monitor. Nothing happened. So I switched to the second port. Booted up my PC and the monitor worked. I thought it was a bug. A few years later, I want a second monitor. HDMI port still
not working. So I use VGA and it runs fine.

Now I got an Oculus Rift. I need the HDMI port. But as usual, doesn't work. I've uninstalled and reinstalled my graphic's drivers. I've updated them. I've unplugged my monitor and tried rebooting my PC with my monitor in the closed HDMI port. Still
nothing. I've run out of ideas. The HDMI cables hook up just fine. All the way. My TV/monitor even tells me PC HDMI 1 and PC HDMI 2. It knows they are in different ports. But I can't get the audio or video to work.

I was really excited to use my Oculus. I already sent in a ticket there. But I figured the problem would persist here as well.

Before you ask, I have a Windows 10, 64 bit AsusTek computer.

Intel Core i7-4790S Processor.

12288MB RAM

NVIDIA GeForce GTX 750

No matter what I plug in it says, Not Plugged In, for my NVIDIA Output. My Computer has 2 HMDI and 2 VGA outputs. I'm decently tech savvy so I'm here it means I'm desperate. My only current solution is to buy some HDMI/USB adapter. But I've postponed this problem
long enough.