My Ubuntu is complete mute. In the beginning in the Audio Settings, the only output was Dummy Output. I did everything here 1 and nothing, then I did the first step here 2 and now the output shown is HDMI/Display-Port -HDA NVidia, but still no sound. The system also doesn't recognize any input and nothing changes when a plug my headphone.
一些其他信息：
Cmd“ inxi -SMA”返回
音讯：
设备1：英特尔Cannon Lake PCH cAVS驱动程序：sof-audio-pci
设备2：NVIDIA驱动程序：snd_hda_intel
声音服务器：ALSA v：k5.4.0-29-通用
Alsamixer returns this 3
Cmd“ aplay -l”返回
**** Lista de Dispositivos播放硬件****
placa 0：NVidia [HDA NVidia]，dispositivo 3：Generic Digital [Generic Digital]
分布：0/1 Dispositivosecundário＃0：子设备＃0
Cmd“ lspci -nnk | grep -A2音频返回：
01：00.1音频设备[0403]：NVIDIA Corporation设备[10de：10fa]（rev a1）
子系统：Dell设备[1028：0949]
正在使用的内核驱动程序：snd_hda_intel
And "pacmd list-cards" returns this 4.
