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Well, as you can probably tell by the title, I have no sound.

I recently built a new gaming PC, and installed 12.04 onto it. Obviously, I have ALSA and PulseAudio installed, but I don't have /etc/asound.conf, if that matters.

I also can't tell what my sound driver is, mainly because I don't know how to find it. I did a Google search about it, but to no avail.

There is only one sound I seem to be getting: a white noise-ish, high-frequency sound coming from the headphones.

Note: I have connected the case audio to the HD audio header, not the AC'97, if that matters (though I still get no sound through the speakers, which are connected to the motherboard directly).

Also, my sound card is: Intel Corporation Panther Point High Definition Audio Controller.

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Sorry I can't help directly with an answer. Though, take a look at the Sound Troubleshooting Procedure on Ubuntu help pages. HTH. –  Paolo Jun 25 '12 at 19:07
    
Sorry, forgot to mention that I have followed all of the steps on there, and everything seems to be alright. –  Jeremy Jun 25 '12 at 20:18
    
I wrote a sound troubleshooting guide a few months ago, see if it can help: docs.google.com/document/d/… –  MiJyn Jul 19 '12 at 2:22

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