耳机插上有声音，扬声器无声音
There is sound when the headset is plugged in, but there is no sound from the speaker
sudo alsactl init
alsa-lib parser.c:260:(error_node) UCM is not supported for this HDA model (
HDA Intel PCH at 0xc5418000 irq 156)
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:0 us
e case configuration -6
Found hardware: “HDA-Intel” “Realtek ALC294” “HDA:10ec0294,10431f21,00100004
HDA:8086280b,80860101,00100000” “0x1043” “0x1f21”
Hardware is initialized using a generic method
alsa-lib parser.c:260:(error_node) UCM is not supported for this HDA model (
HDA NVidia at 0xc5080000 irq 17)
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:1 us
e case configuration -6
Found hardware: “HDA-Intel” “Nvidia GPU 93 HDMI/DP” “HDA:10de0093,10431c6f,0
0100100” “0x1043” “0x1c6f”
Hardware is initialized using a generic method