18.04 HDMI声音不工作

Question

通过线程，我看到许多与HDMI声音有关的未决问题。尝试了许多建议的修正。我的HDMI电视显示器工作正常：

我用的是这幅画：

HDMI-1-1 connected primary

**xrandr --output HDMI-1-1 --set audio on**

warning: output HDMI-1-1 not found; ignoring
X Error of failed request:  BadRROutput (invalid Output parameter)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  15 (RRGetOutputProperty)
  Serial number of failed request:  45
  Current serial number in output stream:  45

Answer 1

有时，我的HDMI音频有问题，我发现使用pavucontrol是可靠的。

sudo apt-get update
sudo apt-get install pavucontrol
pavucontrol