Installed devices: pcm0: <NVIDIA GT21x (HDMI/DP 8ch)> (play) default pcm1: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm2: <NVIDIA GT21x (HDMI/DP 8ch)> (play) pcm3: <NVIDIA GT21x (HDMI/DP 8ch)> (play) No devices installed from userspace.