Ubuntu root登录，无声音解决方案

执行命令：

pulseaudio --start --log-target=syslog  

编辑 /etc/rc.local 添加pulseaudio --start --log-target=syslog

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
pulseaudio --start --log-target=syslog    ###添加这一行
exit 0