Installed devices: pcm0: <NVIDIA (0x0040) (HDMI/DP 8ch)> (play) pcm1: <NVIDIA (0x0040) (HDMI/DP 8ch)> (play) pcm2: <NVIDIA (0x0040) (HDMI/DP 8ch)> (play) pcm3: <NVIDIA (0x0040) (HDMI/DP 8ch)> (play) pcm4: <Realtek ALC662 rev1 (Rear Analog)> (play/rec) pcm5: <Realtek ALC662 rev1 (Analog)> (play/rec) pcm6: <Realtek ALC662 rev1 (Front Analog Headphones)> (play) pcm7: <USB audio> (play/rec) default No devices installed from userspace.