Adding new information about the issue:
'lsmod':
snd 56846 6 snd_soc_core, snd_timer, snd_pcm, snd_seq,
snd_seq_device, snd_comp
'modinfo snd':
filename: /lib/modules/4.1.16-bone18/kernel/sound/core/snd.kp
alias: char-major-116-*
license: GPL
description: Advanced Linux Sound Architecture driver for soundcards.
author: Jaroslav Kysela <[email protected]>
license: GPL
description: Jack detection support for ALSA
author: Mark Brown <[email protected]>
depends: soundcore
intree: Y
vermagic: 4.1.16-bone18 mod_unload modversions ARMv7 thumb2 p2v8
parm: slots:Module names assigned to the slots. (array of
charp)
parm: major:Major # for sound driver. (int)
parm: cards_limit:Count of auto-loadable soundcards. (int)
El martes, 22 de marzo de 2016, 16:44:53 (UTC+1), [email protected] escribió:
>
> After work with a multitouch screen for the BeagleBone Black, now I just
> want to play audio/sounds through the HDMI connection as the multitouch
> screen has a speaker.
>
>
> First of all, I just copied an audio sample, and try to reproduce it by
> 'vlc', but next message is shown:
>
> "*Audio output failed. The audio device "default" could not be used.
> No such file or directory*."
>
>
> Then, I have installed next tools:
>
> 'alsa-base', 'alsa-utils', 'alsa-tools', 'alsamixergui'
>
>
> But, when I tried to launch 'alsamixergui', the next message is shown:
>
> "*alsamixer: function snd_ctl_open failed for default: No such file
> or directory*"
>
>
> And at "/etc/modprobe.d/alsa-base.conf", the content is:
>
> * # autoloader aliases*
>
> * install sound-slot-0 /sbin/modprobe snd-card-0*
>
> * install sound-slot-1 /sbin/modprobe snd-card-1*
>
> * install sound-slot-2 /sbin/modprobe snd-card-2*
>
> * install sound-slot-3 /sbin/modprobe snd-card-3*
>
> * install sound-slot-4 /sbin/modprobe snd-card-4*
>
> * install sound-slot-5 /sbin/modprobe snd-card-5*
>
> * install sound-slot-6 /sbin/modprobe snd-card-6*
>
> * install sound-slot-7 /sbin/modprobe snd-card-7*
>
> * # Cause optional modules to be loaded above generic modules*
>
> * install snd /sbin/modprobe --ignore-install snd && {
> /sbin/modprobe --quiet snd-ioctl32 ; /sbin/modprobe --quiet snd-seq ; : ; }*
>
> * install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi &&
> { /sbin/modprobe --quiet snd-seq-midi ; : ; }*
>
> * install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 &&
> { /sbin/modprobe --quiet snd-emu10k1-synth ; : ; }*
>
> * # Keep snd-pcsp from beeing loaded as first soundcard*
>
> * options snd-pcsp index=-2*
>
> * # Keep snd-usb-audio from beeing loaded as first soundcard*
>
> * options snd-usb-audio index=-2*
>
> * # Prevent abnormal drivers from grabbing index 0*
>
> * options bt87x index=-2*
>
> * options cx88_alsa index=-2*
>
> * options snd-atiixp-modem index=-2*
>
> * options snd-intel8x0m index=-2*
>
> * options snd-via82xx-modem index=-2*
>
>
> Moreover, I have try with next commands:
>
> 'alsamixer -c 1 (2, 3... 7)'
>
> Having next output:
>
> "*invalid card index: 1*"
>
>
> *Is there any way to reproduce any sound (*.midi, *.wav, *.mp3...) through
> hdmi easily*?
>
--
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