only one time sound after recording video and audio sound from desktop

[LMF100]

Hello, I am using Linux Mint 19.1. I recorded  audio sound and videos from desktop with Kazam, Audacity, and two other apps. I had ever the same problem. The videos was working but without sound. If I play it: no sound or very very low sound. I played it with VLC-Player and another player.
I tried to solve the problem with PulseAudioVolume Control. I changed some preferences there, I forget which one. And it was working only one time: video with sound. Great!!! But: the next time it was the same problem again: no sound or very very low sound. And all my trying to change the preferences in PulseAudioVolume Control was not successful.

Has someone an idea, what can I do?
Thank you very much for helping... 

[MrEen]

Hi LMF100, and welcome to the forum.

Let's get some system details, as I'm suspecting the newest version of PulseAudio is disagreeing with your system. Please post the output of inxi -Fxz as well as this command:

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curl https://gitlab.freedesktop.org/pulseaudio/pulseaudio/raw/master/src/utils/pa-info?inline=false | bash | nc termbin.com 9999

[LMF100]

Hello MrEen,

curl https://gitlab.freedesktop.org/pulseaud ... line=false | bash | nc termbin.com 9999
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2039 100 2039 0 0 224 0 0:00:09 0:00:09 --:--:-- 448

[MrEen]

There should have been one more line at the end of the output with a termbin.com URL.

[LMF100]

Hello, I tried a second time. You are right. Sorry. The first time I didn't see more.

$ curl https://gitlab.freedesktop.org/pulseaud ... line=false | bash | nc termbin.com 9999
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2039 100 2039 0 0 2729 0 --:--:-- --:--:-- --:--:-- 2725
No protocol specified
xcb_connection_has_error() returned true
No protocol specified
No protocol specified
xcb_connection_has_error() returned true
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1002/gvfs
Output information may be incomplete.
Invalid card number.
No protocol specified
xcb_connection_has_error() returned true
No protocol specified
xcb_connection_has_error() returned true
/usr/sbin/alsactl: save_state No soundcards found...
cat: /tmp/alsa-info.9ng0S8RRUA/alsactl.tmp: No such file or directory
https://termbin.com/udjo

[MrEen]

Okay, I've never seen this before. In dmesg we see this:

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[   54.661443] snd_hda_codec_idt hdaudioC0D0: autoconfig for 92HD90BXX: line_outs=1 (0xe/0x0/0x0/0x0/0x0) type:line
[   54.661446] snd_hda_codec_idt hdaudioC0D0:    speaker_outs=1 (0xd/0x0/0x0/0x0/0x0)
[   54.661448] snd_hda_codec_idt hdaudioC0D0:    hp_outs=1 (0xb/0x0/0x0/0x0/0x0)
[   54.661449] snd_hda_codec_idt hdaudioC0D0:    mono: mono_out=0x0
[   54.661451] snd_hda_codec_idt hdaudioC0D0:    inputs:
[   54.661453] snd_hda_codec_idt hdaudioC0D0:      Dock Mic=0xf
[   54.661455] snd_hda_codec_idt hdaudioC0D0:      Internal Mic=0x11
[   54.661459] snd_hda_codec_idt hdaudioC0D0:      Mic=0xa

That shows the card as card 0 device 0. But the amixer output shows this:

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!!Amixer output
!!-------------

!!-------Mixer controls for card 0 [PCH]

Invalid card number.

That claims card 0 doesn't exist.

Have you created a ~/.asoundrc file in your home directory, or a /etc/asound.conf file?

Oh, I may have spotted what's causing this but I'm not certain:

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lang      1585  0.0  0.2 1332392 17980 ?       S<l  05:34   0:00 /usr/bin/pulseaudio --start --log-target=syslog
admin     3739  0.0  0.0  11464  1028 pts/1    S+   06:20   0:00 grep pulseaudio

The card is only going to be available to user lang as that's the user pulseaudio was started under. Could that be the source of your issue?

[LMF100]

<Have you created a ~/.asoundrc file in your home directory, or a /etc/asound.conf file?>
I don't know. Actually how can I find it out?

<The card is only going to be available to user lang as that's the user pulseaudio was started under. Could that be the source of your issue?>
I am using it at the user lang.

[MrEen]

To find out if those files exist, these commands will return errors if they don't:

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cat ~/.asoundrc

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cat /etc/asound.conf

And let's also see this one:
sudo fuser -v /dev/snd/*

[LMF100]

$ cat ~/.asoundrc
No such file or directory


$ cat /etc/asound.conf
No such file or directory


$ sudo fuser -v /dev/snd/*

USER PID ACCESS COMMAND
/dev/snd/controlC0: lang 1580 F.... pulseaudio

[MrEen]

Well, those are all good outputs.

What happens if you run this command:

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pacmd load-module module-alsa-sink

If that throws some error, try this instead:

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pacmd load-module module-alsa-sink device=hw:0,0

If that gets things recognized properly, there's a chance things might start out muted, so watch for that.

[LMF101]

(Sorry I changed from my username LMF100 to LMF101, now.)

$ pacmd load-module module-alsa-sink
No PulseAudio daemon running, or not running as session daemon.

and

$ pacmd load-module module-alsa-sink device=hw:0,0
No PulseAudio daemon running, or not running as session daemon.

[MrEen]

Well, on Friday the daemon was running. So try pulseaudio --start first, then the load-module command.

EDIT: Or, you tried those as admin instead of lang.