Cannot find card 'default' (with chroot based on 0.0.3)

[axelsimon]

Hi, I updated my install today to use the latest chroot and I'm now running into an issue where the spotify-connect-web service runs fine, but as soon as I try to play something, it informs me that the default sound card can't be found:

kSpPlaybackNotifyBecameActive kSpPlaybackNotifyPlay ALSA lib confmisc.c:768:(parse_card) cannot find card 'default' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_concat returned error: No such device ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returned error: No such device ALSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such device ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default:CARD=default Unable to acquire device: No such device [default:CARD=default]

At first I thought I might have messed up the config inside the chroot, as I'd messed about trying to get spotify-connect-web to play to a fifo file ALSA PCM device (attempting to use Snapcast). But I reinstalled a fresh chroot and the problem is still here. If I start it with ./spotify-connect-web.sh --bitrate=320 --name=test --playback_device default:CARD=ALSA then it works fine.

Lastly, starting the old chroot with --device (as it was called then) works fine.

Any ideas?

[twenta]

Did you follow this setup of the asound.conf? https://github.com/badaix/snapcast/issues/45

[axelsimon]

I did indeed, I created an .asoundrc file for my osmc user (I'm using OSMC, as you might have cunningly guessed from that) with exactly this:

osmc@capybara:~$ cat .asoundrc 
pcm.!snapcast {
type plug
slave {
pcm rate48000Hz # Direct default output to the below converter
}
}

pcm.rate48000Hz {
type rate
slave {
pcm writeFile # Direct to the plugin which will write to a file
format S16_LE
rate 48000
}
}

pcm.writeFile {
type file
slave.pcm null
file /tmp/snapfifo
format raw
}

I also tried with the same thing in /etc/asound.conf, it gives the same results, which is to be expected.

aplay -L gives:

osmc@capybara:~$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
snapcast
rate48000Hz
writeFile
default:CARD=ALSA
    bcm2835 ALSA, bcm2835 ALSA
    Default Audio Device
sysdefault:CARD=ALSA
    bcm2835 ALSA, bcm2835 ALSA
    Default Audio Device
dmix:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct sample mixing device
dmix:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct sample mixing device
dsnoop:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct sample snooping device
dsnoop:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct sample snooping device
hw:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct hardware device without any conversions
hw:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct hardware device without any conversions
plughw:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Hardware device with all software conversions
plughw:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Hardware device with all software conversions

To test the spotify-connect-web issue, I tested without any asound.conf/.asoundrc. Still had the problem described in the title of this issue: “cannot find card 'default'”. The same issue happens with device snapcast. It even happened with the null device when I tried last night but seems to work now.

Testing with a non-existant ALSA device ("zorg"):

kSpPlaybackNotifyPlay
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM zorg
Unable to acquire device:  No such file or directory [zorg]

Testing with the snapcast device:

kSpPlaybackNotifyPlay
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM snapcast
Unable to acquire device:  No such file or directory [snapcast]

Testing with the null device:

kSpPlaybackNotifyPlay
AlsaSink: device acquired

And for completeness, testing without giving a specificic playback device or giving --playback_device default (or --playback_device=default, same result):

kSpPlaybackNotifyPlay
ALSA lib confmisc.c:768:(parse_card) cannot find card 'default'
ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_concat returned error: No such device
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returned error: No such device
ALSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such device
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default:CARD=default
Unable to acquire device:  No such device [default:CARD=default]

Lastly, it works fine when giving the full ALSA device:

kSpPlaybackNotifyPlay
AlsaSink: device acquired

[twenta]

Try to add "-o snapcast" when you run spotify-connect-web.

[c0da]

spotify-connect-web chroot doesn't read asound.conf from your system's /etc directory. You will need to copy your /etc/asound.conf to your 'spotify-connect-web-chroot'/etc/ directory.

I hope it helps!

[Fornoth]

You can use aplay -L to figure out the name to pass to --playback_device.

[axelsimon]

@coda4k Thanks, that sounds helpful, I'll give a try when I'm back near that install (it's not at my house).

@twenta @Fornoth Yes, I know, that's what I extensively tested and reported on in my previous post. The whole problem is passing a device's name to spotify-connect-web with ./spotify-connect-web.sh --bitrate=320 --name=test --playback_device default (default, snapcast) doesn't work.

It throws this error:

ALSA lib conf.c:4738:(snd_config_expand) Evaluate error: No such device ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default:CARD=default Unable to acquire device: No such device [default:CARD=default]

So basically, it looks for the device default:CARD=default instead of default.

[singhprd]

Hi, Just thought I'd report back my progress with what I think is the same issue. I have a raspberry pi 3 and want to output audio via the audio jack which is set to default in raspi-config.

I was getting this and no audio output: 192.168.1.212 - - [2016-10-04 23:27:44] "GET /api/info/metadata HTTP/1.1" 200 596 0.006690 kSpPlaybackEventAudioFlush kSpPlaybackNotifyPlay ALSA lib conf.c:4687:(snd_config_expand) Unknown parameters CARD=default ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default:CARD=default Unable to acquire device: Invalid argument [default:CARD=default]

I checked my aplay -L where the first entry was: aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server sysdefault:CARD=ALSA bcm2835 ALSA, bcm2835 ALSA Default Audio Device

I set my startup params to this which solved the issue and I now have audio output: ./spotify-connect-web --playback_device sysdefault:CARD=ALSA

Also thanks to everyone who is developing this! It was exactly what I was looking for on my pi!

[Zeppp3]

Amen!

To get the sound working you need to put the full name aplay -L spits out. Like so:

--playback_device sysdefault:CARD=ALSA