I like to provide my info like this, it will show a lot of info about
your hardware

sudo lshw >> $HOME/Desktop/hardware.txt

lspci -nnv >> $HOME/Desktop/pci.txt
lsusb -nnv >> $HOME/Desktop/usb.txt

cat /proc/asound/cards >> $HOME/Desktop/sound.txt
grep Codec /proc/asound/card0/codec#* >> $HOME/Desktop/card0_codec.txt

Check your Desktop, read sound.txt. If you see that the card says HDA Intel, 
check this website:
https://wiki.ubuntu.com/Gutsy_Intel_HD_Audio_Controller

Attach on this bug report these files (Check your Desktop): hardware.txt 
pci.txt usb.txt sound.txt card0_codec.txt
(Zip them into one file, it will be easier)

-- 
Suddenly it's like if I have not audio board: no sounds!
https://bugs.launchpad.net/bugs/164993
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