I'm using Ubuntu 12.10, and I'm not getting any sound from my Toshiba Satellite P100's internal speakers. I have an Intel NM10/ICH7 Family High Definition Audio Controller, and it's recognized by the system when I type lspci -v | grep -A7 -i "audio" into the CLI. My sound card is also listed in the Ubuntu sound card matrix, so it should be supported. I have master volume and speaker volume both turned up, as well as the volume knob on the front of my laptop, but still I get no sound.
Any thoughts? I'm new to Linux OS and Ubuntu.