[SOLVED] 9.0.2 at Pi Zero 2W - Failed to open ALSA device

[Tim Curtis]

I have an older rxv661 and no issues. Its using HDMI 1.2a

Try the commands below to verify whether Linux/ALSA/KMS recognizes the HDMI device as an audio device.

Linux/ALSA
aplay -l

Code:

pi@hsu:~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
 Subdevices: 0/1
 Subdevice #0: subdevice #0
card 1: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0

KMS (Kernel Mode videocore driver)
kmsprint

Code:

pi@hsu:~ $ kmsprint
Connector 0 (32) HDMI-A-1 (connected)
 Encoder 0 (31) TMDS
   Crtc 3 (94) 1280x720@60.00 74.250 1280/110/40/220/+ 720/5/5/20/+ 60 (60.00)  
     Plane 3 (84) fb-id: 340 (crtcs: 3) 0,0 1280x720 -> 0,0 1280x720 (XR24 AR24 AB24 XB24 RG16 BG16 AR15 XR15 RG24 BG24 YU16 YV16 YU24 YV24 YU12 YV12 NV12 NV21 NV16 NV61 P030 XR30 AR30 AB30 XB30 RGB8 BGR8 XR12 AR12 XB12 AB12 BX12 BA12 RX12 RA12)
       FB 340 1280x720 XR24
Connector 1 (41) HDMI-A-2 (disconnected)
 Encoder 1 (40) TMDS