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 ALC897 (Rear Analog)> (play/rec) default pcm5: <Realtek ALC897 (Front Analog)> (play/rec) pcm6: <Realtek ALC897 (Internal Digital)> (play) No devices installed from userspace.