Installed devices: pcm0: <NVIDIA (0x00a5) (HDMI/DP 8ch)> (play) pcm1: <NVIDIA (0x00a5) (HDMI/DP 8ch)> (play) pcm2: <NVIDIA (0x00a5) (HDMI/DP 8ch)> (play) pcm3: <NVIDIA (0x00a5) (HDMI/DP 8ch)> (play) pcm4: <Realtek ALC1220 (Rear Analog 5.1/2.0)> (play/rec) default pcm5: <Realtek ALC1220 (Front Analog)> (play/rec) pcm6: <Dell DELL PROFESSIONAL SOUND BAR AE515> (play/rec) No devices installed from userspace.