Resolves Kali linux 2016.2 physical machine installation after root user no sound

Kali Linux system By default, the root user is unable to use the sound card, and there is no sound. The following methods are enabled:
(1) Execute command at Terminal: Systemctl--user enable PulseAudio
(2) under the/etc/default/directory, create a file named PulseAudio, and add the following:
Pulseaudio_system_start=1
Disallow_module_loading=0

Restart the system and there is a sound.

Another, modify the input method or install the input method must log off the user to re-login to

Resolves Kali linux 2016.2 physical machine installation after root user no sound