[rpi4b v8 7.9.2 beta] BossDAC mpd stopped working after kodi 19.3 install

elevader · 11 December 2021 10:47

Previous thread that fixed Volume slider problems with BossDAC and o!mpd https://dietpi.com/phpbb/viewtopic.php?t=9426&start=10

BossDAC and o!mpd stopped working after installing kodi 19.3.
Kodi seems to hijack the output device and force itself over HDMI leaving o!mpd not able to play.
o!mpd plays when i make changes in audio settings and select a audio device but something happens after a reboot and we are back at square one.
System Settings in Kodi do not list the BossDAC when hw2,0 is selected, i can see only,

vc4-hdmi-0 (), MAI PCM i2s-hifi-0
vc4-hdmi-0 (vc4hdmi0), OTM Optoma UHD on HDMI

both selections play kodi sounds via the Optoma build in speaker.

If BossDAC is selected in dietpi-config audio settings i can see the BossDAC listed in kodi system settings and i am able to play kodi via BossDAC but o!mpd does not play and no dmesg messages.
It does not matter if kodi is started o!mpd will not play either way.

stuff i collected during the trials
dmesg

hdmi-audio-codec hdmi-audio-codec.1.auto: ASoC: error at snd_soc_dai_startup on i2s-hifi: -19

when pressing play in o!mpd on a track.

root@DietPi:~# 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: 1/1
  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
card 2: BossDAC [BossDAC], device 0: Boss DAC HiFi [Master] pcm512x-hifi-0 [Boss DAC HiFi [Master] pcm512x-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
root@DietPi:~# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault
    Default Audio Device
hw:CARD=vc4hdmi0,DEV=0
    vc4-hdmi-0, MAI PCM i2s-hifi-0
    Direct hardware device without any conversions
plughw:CARD=vc4hdmi0,DEV=0
    vc4-hdmi-0, MAI PCM i2s-hifi-0
    Hardware device with all software conversions
sysdefault:CARD=vc4hdmi0
    vc4-hdmi-0, MAI PCM i2s-hifi-0
    Default Audio Device
hdmi:CARD=vc4hdmi0,DEV=0
    vc4-hdmi-0, MAI PCM i2s-hifi-0
    HDMI Audio Output
dmix:CARD=vc4hdmi0,DEV=0
    vc4-hdmi-0, MAI PCM i2s-hifi-0
    Direct sample mixing device
hw:CARD=vc4hdmi1,DEV=0
    vc4-hdmi-1, MAI PCM i2s-hifi-0
    Direct hardware device without any conversions
plughw:CARD=vc4hdmi1,DEV=0
    vc4-hdmi-1, MAI PCM i2s-hifi-0
    Hardware device with all software conversions
sysdefault:CARD=vc4hdmi1
    vc4-hdmi-1, MAI PCM i2s-hifi-0
    Default Audio Device
hdmi:CARD=vc4hdmi1,DEV=0
    vc4-hdmi-1, MAI PCM i2s-hifi-0
    HDMI Audio Output
dmix:CARD=vc4hdmi1,DEV=0
    vc4-hdmi-1, MAI PCM i2s-hifi-0
    Direct sample mixing device
hw:CARD=BossDAC,DEV=0
    BossDAC, Boss DAC HiFi [Master] pcm512x-hifi-0
    Direct hardware device without any conversions
plughw:CARD=BossDAC,DEV=0
    BossDAC, Boss DAC HiFi [Master] pcm512x-hifi-0
    Hardware device with all software conversions
sysdefault:CARD=BossDAC
    BossDAC, Boss DAC HiFi [Master] pcm512x-hifi-0
    Default Audio Device
dmix:CARD=BossDAC,DEV=0
    BossDAC, Boss DAC HiFi [Master] pcm512x-hifi-0
    Direct sample mixing device

dietpi-config audio options still show,

Sound card          : [allo-boss-dac-pcm512x-audio-eq]

Kodi added card 0 and card 1, sound card select shows now this new block,

                                   ●─ Auto detection─────────────────────────────────● 
hw:0,0                            : vc4hdmi0 MAI PCM i2s-hifi-0 
hw:1,0                            : vc4hdmi1 MAI PCM i2s-hifi-0
hw:2,0                            : BossDAC Boss DAC HiFi [Master] pcm512x-hifi-0

Original working sound card select before Kodi install was on,
dietpi-config audio options still show,

Sound card          : [allo-boss-dac-pcm512x-audio-eq]

switched to,

hw:2,0                            : BossDAC Boss DAC HiFi [Master] pcm512x-hifi-0

from the new selection block but nothing happens, alsamixer does not start and old BossDAC dmesg errors are gone but a new one shows up.

vc4_hdmi fef00700.hdmi: Could not register sound card: -517

root@DietPi:~# alsamixer 
cannot open mixer: No such file or directory

…
Switched back to,

Sound card          : [allo-boss-dac-pcm512x-audio-eq]

enabled just boom eq, i can see the eq mixer and after reboot Alsamixer F6 allows me choose between,

0 vc4-hdmi-0
1 vc4-hdmi-1
2 BossDAC

Selecting BossDAC though does not produce any audio from mpd/o!mpd play button.

[    2.571175] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517
[    2.649400] pcm512x 1-004d: supply AVDD not found, using dummy regulator
[    2.650823] pcm512x 1-004d: supply DVDD not found, using dummy regulator
[    2.650914] pcm512x 1-004d: supply CPVDD not found, using dummy regulator
[    2.957671] random: crng init done
[    2.957685] random: 7 urandom warning(s) missed due to ratelimiting
[    3.368477] bcmgenet fd580000.ethernet: configuring instance for external RGMII (RX delay)
[    3.368769] bcmgenet fd580000.ethernet eth0: Link is Down
[    6.431575] bcmgenet fd580000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[  103.030627] hdmi-audio-codec hdmi-audio-codec.2.auto: ASoC: error at snd_soc_dai_startup on i2s-hifi: -19

From previous /boot/dietpi.txt file i can see a change from,

# Sound card
CONFIG_SOUNDCARD=allo-boss-dac-pcm512x-audio-eq

to

# Sound card
CONFIG_SOUNDCARD=allo-boss-dac-pcm512x-audio-plug