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hdmi sound card not detected


foscove

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Long story short: I used for about one year an odroid HC4 as  NFS server and worked fine. Now I would add a player service for it. It mounts an HDMI port, so I tried to plug in the cable and it worked. I were able to see the video output but with no sound.

I found there is no detected hdmi card:

# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ODROIDHC4 [ODROID-HC4], device 0: fe.dai-link-0 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: ODROIDHC4 [ODROID-HC4], device 1: fe.dai-link-1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: ODROIDHC4 [ODROID-HC4], device 2: fe.dai-link-2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

tried again after

# alsactl init
alsa-lib main.c:1541:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
Found hardware: "axg-sound-card" "" "" "" ""
Hardware is initialized using a generic method

(alsactl -U init provides no error)

 

The modules side looks fine to me (it was the same on 5.10.144, I tried moving to 5.19.10 with no result):

# lsmod | grep snd
snd_soc_hdmi_codec     24576  1
snd_soc_meson_axg_sound_card    16384  0
snd_soc_meson_card_utils    16384  1 snd_soc_meson_axg_sound_card
snd_soc_meson_g12a_tohdmitx    20480  1
snd_soc_meson_codec_glue    16384  1 snd_soc_meson_g12a_tohdmitx
snd_soc_meson_axg_tdmout    24576  1
snd_soc_meson_axg_frddr    36864  3
snd_soc_meson_axg_fifo    20480  1 snd_soc_meson_axg_frddr
snd_soc_meson_axg_tdm_interface    16384  2 snd_soc_meson_axg_sound_card
snd_soc_meson_axg_tdm_formatter    16384  2 snd_soc_meson_axg_tdm_interface,snd_soc_meson_axg_tdmout
snd_soc_core          245760  10 snd_soc_meson_axg_tdm_formatter,snd_soc_meson_axg_sound_card,snd_soc_hdmi_codec,snd_soc_meson_g12a_tohdmitx,snd_soc_meson_axg_tdm_interface,snd_soc_meson_axg_fifo,snd_soc_meson_axg_tdmout,snd_soc_meson_axg_frddr,snd_soc_meson_card_utils,snd_soc_meson_codec_glue
snd_compress           24576  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
snd_pcm_dmaengine      20480  1 snd_soc_core
snd_pcm               131072  7 snd_soc_hdmi_codec,snd_compress,snd_soc_meson_axg_tdm_interface,snd_soc_core,snd_soc_meson_axg_fifo,snd_soc_meson_codec_glue,snd_pcm_dmaengine
snd_timer              40960  1 snd_pcm
snd                    90112  5 snd_soc_hdmi_codec,snd_timer,snd_compress,snd_soc_core,snd_pcm
soundcore              16384  1 snd

 

I tried digging in dmesg and the only related issue that came out is:p

panfrost ffe40000.gpu: error -ENODEV: dev_pm_opp_set_regulators: no regulator (mali) found

but I wouldn't say that to be the source of the sound problem.

 

There are errors but I don't feel the solution behind any of them. Do you?

 

Kernel, modules, drive, dtb... where else could the lack of sound come from?

Any suggestion?

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