Try the following command:
Originally Posted by gamer4lyf3
If it doesn't list some sound devices, you may not have the kernel modules installed to properly access your sound system. Try the following command:
This checks to see that you have the modules package installed for your currently running kernel. If it says "No packages found", install the modules package for your kernel with the following command:
dpkg -l linux-ubuntu-modules-`uname -r`
Reboot your laptop.
sudo apt-get install linux-ubuntu-modules-`uname -r`