Installed devices: pcm0: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm1: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm2: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm3: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm4: <Realtek ALC883 (Rear Analog 7.1/2.0)> (play/rec) default pcm5: <Realtek ALC883 (Front Analog)> (play/rec) pcm6: <Realtek ALC883 (Rear Digital)> (play) No devices installed from userspace.