HP Envy 14-1111 Audio :: Headset Microphone Does Not Work

I have an HP Envy 14-1111 nr notebook with Windows 7, and I have always had problems with microphones working. I plug in my headset and put the plugs into the correct ports, including putting the Mic plug into the port with a picture of a headset/mic. I also put the audio plug into the correct port.
 
The audio always works fine- I can hear things properly coming from the headphones. But the mic NEVER WORKS. I've made sure that the mic is enabled, and I've set the headset mic as the default recording device, and made sure it's not muted, and even tried like 3 different types of headsets, but it still doesn't work.
 
My computer recognizes that my headset has a mic when I plug it in, because the independent headset microphone pops up on my recording devices. But no matter how much noise I make into the mic, my computer doesn't recognize any of it. It is basically saying that it can't detect any sound from the mic.