ubuntu hardware failure lost sound after some seconds and then restrt code example
Example: how to reinstall alsa
sudo apt-get remove alsa-utils
sudo apt-get remove alsamixer
sudo apt-get install alsa-utils
sudo apt-get install alsamixer
sudo apt-get remove alsa-utils
sudo apt-get remove alsamixer
sudo apt-get install alsa-utils
sudo apt-get install alsamixer