[Fix] Sound Not Work on Ubuntu

I have install an ubuntu 18.04 LTS on my PC, and my sound is not function. After I search on the internet this instruction is work on my PC. Before I install ubuntu, my sound card on Windows 7 is normal. My sound card onboard the PC is IDT as known as from windows 7. And this is how I fix the sound :

1. sudo apt-get install pavucontrol
    install pavucontrol from terminal.

2. sudo pavucontrol
    open pavucontrol from terminal or find in the show apps

  

3.  click arrow to the right until you find "Configuration". Click the "Configuration".

 

4. Change to Analog Stereo Duplex / Analog Stereo Output

 5. Finish.