(1)终端输入 lspci |grep Audio
显示: 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
声卡没问题
(2)终端输入 lsmod | grep snd
没反应,声音内核模块没有
(3)终端输入 sudo dpkg --get-selections|grep linux
发现我的内核里少了 modules-extra
(4)终端输入 sudo apt-get install linux-modules-extra-4.15.0-142-generic
下载我的内核版本扩展
(5)reboot+pavucontrul
ok了