No sound in Nuvola Player on Ubuntu 17.10 with error AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused

MurzNN commented 6 years ago

After installing Nuvola Player on my Ubuntu Linux 17.10 AMD64 - it starts & works successfully, but I hear no sound, and no sound source in Pulseadio app list.

If I start app from console, I see repeating errors:

AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused

Other music apps works well, without errors.

System info:

Distributor ID: Ubuntu
Description:    Ubuntu 17.10
Release:        17.10
Codename:       artful
Yandex Music script 1.5
Maintainer: Aleksey Zhidkov

--- Powered by ---

Nuvola Apps - Genuine flatpak build
Version 4.9.149
Revision 149-g78479d8
Diorite 4.9.11
WebKitGTK 2.18.6
Chromium 63.0.3239.109
libsoup 2.60.0

And same thing with other scripts (TuneIn, Deezer).

Here is full debug output of app: https://pastebin.com/6CtRpw2d

Via manually starts /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/MiniBrowser sound works well on those services.

What this errors means and how can I fix them?

jiri-janousek commented 6 years ago

Hello @MurzNN. Thanks for reporting your issue. Could you add missing basic information as specified in the Bug reporting guidelined?

MurzNN commented 6 years ago

I add debug info to first post. Also maybe the problem is that I use system-wide pulseaudio daemon, shared with all system users, but all other apps works well with it. And via manually starts /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/MiniBrowser I also hear music normally, in Chromium - too.

MurzNN commented 6 years ago

Output of aplay:

$ aplay -L
default
    Playback/recording through the PulseAudio sound server
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
sysdefault:CARD=PCH
    HDA Intel PCH, ALC887-VD Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Front speakers
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Digital
    IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=PCH,DEV=0
    HDA Intel PCH, HDMI 0
    HDMI Audio Output
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Direct sample mixing device
dmix:CARD=PCH,DEV=1
    HDA Intel PCH, ALC887-VD Digital
    Direct sample mixing device
dmix:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
    HDA Intel PCH, ALC887-VD Digital
    Direct sample snooping device
dsnoop:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Direct sample snooping device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC887-VD Digital
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC887-VD Analog
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC887-VD Digital
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=3
    HDA Intel PCH, HDMI 0
    Hardware device with all software conversions

jiri-janousek commented 6 years ago

Thanks, @MurzNN.

Debug log from pastebin. Next time, please attach debug logs as text files instead of a pastebin link.
Could you install any multimedia Flatpak app, e.g. Rhythmbox to check whether the issue is in Flatpak sandbox? I'm not sure whether it can handle system-wide PulseAudio daemon.
Please precisely describe how you have set up the system-wide PulseAudio daemon so that I can test it on a clean system.
I'm puzzled a bit by AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused error message. It seems not to come from ALSA but OpenAL. I've never seen that.

MurzNN commented 6 years ago

About Pastebin - log is too long for paste here, and duplicate already posted main part of log, so I move it to pastebin. I try to install Rhythmbox via Flatpak and it have same problem, so seems this is a system problem with flatpak, not in Nuvola Player. I'll try to fix it and post results here, if found something.

jiri-janousek commented 6 years ago

About Pastebin - log is too long for paste here

That's why I asked you to attach the log as a text file, not to paste it here. I should've made it more clear as not everybody is familiar with this GitHub function. Sorry for that.

github_attach

I try to install Rhythmbox via Flatpak and it have same problem, so seems this is a system problem with flatpak, not in Nuvola Player. I'll try to fix it and post results here, if found something.

Could you create a bug report in Flatpak repo and link it here? They might understand this issue better than me. I'm not so familiar with Flatpak sandbox internals.

MurzNN commented 6 years ago

I revert pulseaudio on my system from system-wide daemon to per-user, and sounds becomes work! Here is manual how to make pulseaudio system-wide and we can revert back via same commands. Seems this is Flatpak issue, but I post here for if any other user got same problems with Nuvola Apps.

Here is issue in Flatpak thread: https://github.com/flatpak/flatpak/issues/1810

tiliado / nuvolaplayer

No sound in Nuvola Player on Ubuntu 17.10 with error AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Connection refused #408