Installed devices: pcm0: <NVIDIA (0x0051) (HDMI/DP 8ch)> (play) pcm1: <NVIDIA (0x0051) (HDMI/DP 8ch)> (play) pcm2: <Realtek ALC887 (Rear Analog)> (play/rec) pcm3: <Realtek ALC887 (Front Analog)> (play/rec) pcm4: <Realtek ALC887 (Internal Digital)> (play) pcm5: <USB audio> (rec) pcm6: <USB audio> (play/rec) default No devices installed from userspace.