Hui Wang: when booting from https://iso.mirrors.ustc.edu.cn/ubuntu-releases/21.04/ubuntu-21.04-desktop-amd64.iso, the livecd was able to produce sound and detected a soundcard of type "HDMI/DisplayPort Audio built-in"
However still no sound with current system..
Hui Wang: when booting from https:/ /iso.mirrors. ustc.edu. cn/ubuntu- releases/ 21.04/ubuntu- 21.04-desktop- amd64.iso, the livecd was able to produce sound and detected a soundcard of type "HDMI/DisplayPort Audio built-in"
However still no sound with current system..