Re: mpd cannot find default alsa soundcard; sudo -u mpd aplay -D default /Side_Right.wav results in desired audio output.

2018-12-25 Thread toogley 
Hey,

> So, try this /etc/mpd.conf:
> 
> group "audio"
> 
> audio_output {
> type"alsa"
> name"ALSA sound card"
> }

thanks. I also added the audio group to the mpd line of /etc/passwd.

==> works now. Thank you!

Re: mpd cannot find default alsa soundcard; sudo -u mpd aplay -D default /Side_Right.wav results in desired audio output.

2018-12-25 Thread Ric Moore 

On 12/25/18 9:40 AM, Reco wrote:

Hi.

On Tue, Dec 25, 2018 at 03:29:32PM +0100, toogley wrote:

==> any ideas?


This does not look right:


# groups mpd
mpd : audio


This means that mpd's primary group is not audio.


/etc/mpd.conf

audio_output {
 type"alsa"
 name"ALSA sound card"
}


An absence of 'group' stanza means, according to the configuration file:

# This setting specifies the group that MPD will run as. If not
# specified primary group of user specified with "user" setting will be
# used (if set).
# This is useful if MPD needs to be a member of group such as "audio" to
# have permission to use sound card.

My suspicion is that mpd simply discards membership of 'audio' group
then run as a daemon.

So, try this /etc/mpd.conf:

group "audio"

audio_output {
 type"alsa"
 name"ALSA sound card"
}


You might go over this step-by-step to see if everything is up to snuff. 
https://www.htpcguides.com/create-an-mpd-music-server-on-debian/

Re: mpd cannot find default alsa soundcard; sudo -u mpd aplay -D default /Side_Right.wav results in desired audio output.

2018-12-25 Thread Reco 
Hi.

On Tue, Dec 25, 2018 at 03:29:32PM +0100, toogley wrote:
> ==> any ideas?

This does not look right:

> # groups mpd
> mpd : audio

This means that mpd's primary group is not audio.

> /etc/mpd.conf
> 
> audio_output {
> type"alsa"
> name"ALSA sound card"
> }

An absence of 'group' stanza means, according to the configuration file:

# This setting specifies the group that MPD will run as. If not
# specified primary group of user specified with "user" setting will be
# used (if set).
# This is useful if MPD needs to be a member of group such as "audio" to
# have permission to use sound card.

My suspicion is that mpd simply discards membership of 'audio' group
then run as a daemon.

So, try this /etc/mpd.conf:

group "audio"

audio_output {
type"alsa"
name"ALSA sound card"
}

Reco

mpd cannot find default alsa soundcard; sudo -u mpd aplay -D default /Side_Right.wav results in desired audio output.

2018-12-25 Thread toogley 
Hey,

* i run a updated debian stretch
* mpd cannot find the default alsa soundcard.
* sudo -u mpd aplay -D default /Side_Right.wav -> results in the desired audio 
output.
* also, https://bbs.archlinux.org/viewtopic.php?pid=1372042#p1372042 doesn't 
help
* switching to pulseaudio doesn't work, results in this bug: 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690530 - decided to debug 
alsa first, as its simpler.


==> any ideas?

/var/log/mpd.log

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver retu
rned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned
error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned e
rror: No such file or directory
ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or direc
tory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default
Dec 25 15:11 : alsa_output: Failed to open "ALSA sound card" [alsa]: Failed to
 open ALSA device "default": No such file or directory
Dec 25 15:11 : output: Failed to open audio output
Dec 25 15:11 : player: problems opening audio device while playing "melodical/
Abel_Korzeniowski-Nocturnal_Animals/09.Mothers.ogg"


# groups mpd
mpd : audio

# aplay -l | head
 List of PLAYBACK Hardware Devices 
card 0: PCH [HDA Intel PCH], device 0: ALC255 Analog [ALC255 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

# aplay --list-pcm | head
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=PCH
HDA Intel PCH, ALC255 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, ALC255 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC255 Analog


/etc/asound.conf

defaults.pcm.device 0 
defaults.ctl.card 0 
defaults.pcm.card 0
defaults.timer.card 

/etc/mpd.conf

audio_output {
type"alsa"
name"ALSA sound card"
}