many troubles with pulseaudio

[Dmitri Seletski <drjoms@xxxxxxxxx>]

Hello.

I am forced to send an email to this group. I am not big fan of pulseaudio generally. If not for Firefox requirement of pulse audio - I'd not install pulse audio at all.

What am I trying to do:

I am trying to route pulse audio through default PCM in alsa.

here is my .asoundrc which works perfectly fine untill I do 2 things.

1. Install Pulse Audio.

2. Restart PC.

All commands and actions below are in chronological order.

i was able to route pulseaudio over 'default' PCM.

Here is my .asoundrc file:

pcm.downmix {
type vdownmix
slave.pcm "hware"
}

pcm.dmixed1 {
    type dmix
    ipc_key 1029
    slave {
          pcm "hware"
        period_time 0
#        period_size 1024
        buffer_size 8192
#        rate 192000
        rate 48000
#        rate 96000
    channels 2
    format S32_LE
}

}



pcm.hware{
    type hw
    card 0
#    rate 96000
   
}


#actual dmix device
pcm.dmixed {
    type dmix
    ipc_key 1024
    slave {
          pcm "hw:0"
        period_time 0
#        period_size 1024
        buffer_size 8192
        rate 192000
#        rate 48000
#        rate 96000
    channels 2
    format S32_LE
}

}

#just something i amm messing with
pcm.retarded{
    type hw
    card 0
    device 0
    rate 192000
    channels 2
}

#USB mic
pcm.dsnooped {
    type dsnoop
    ipc_key 1025
    slave.pcm "hw:1,0"
    slave{
    rate 48000
    }
}

#makes possible for app to by default use input and output source. Usefull for anything VOIP
pcm.duplex {
    type asym
    playback.pcm "dmixed"
    capture.pcm "dsnooped"
}


# Instruct ALSA to use pcm.duplex as the default device
pcm.!default {
    type plug
slave.pcm{
@func getenv
vars [ ALSA_PCM ]
default "duplex"
}
}


# FOR USER: to start app woth downmix option use: ALSA_PCM=downmix app_name
#for steam  ALSA_PCM=downmix %command%

I naturally tweaked some settings.

No settings being tweaked for alsa.

Exception is .asoundrc.

When I run pulseaudio after restart I get:

dimko@(none)dimko's Desktop ~ $ pulseaudio
E: [pulseaudio] module.c: Failed to load module "module-alsa-sink" (argument: "device=default"): initialization failed.

Server is there and doesn't work

I kill the pulseaudio wit ctrl c

i do this:

dimko@(none)dimko's Desktop ~ $ speaker-test

speaker-test 1.1.6

Playback device is default
Stream parameters are 48000Hz, S16_LE, 1 channels
Using 16 octaves of pink noise
ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.1.6-r1/work/alsa-lib-1.1.6/src/pcm/pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave
Playback open error: -2,No such file or directory

No slightest doubt in my mind, issue NOT caused by alsa.

To further prove that it's not .alsamixer. I move ,asoundrc file away

dimko@(none)dimko's Desktop ~ $ pwd
/home/dimko

dimko@(none)dimko's Desktop ~ $ mv .asoundrc .asoundrc_moved

I  repeat operation of speaker testing to see if moving .asoundrc made any difference. Nope.

speaker-test

speaker-test 1.1.6

Playback device is default
Stream parameters are 48000Hz, S16_LE, 1 channels
Using 16 octaves of pink noise
ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.1.6-r1/work/alsa-lib-1.1.6/src/pcm/pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave
Playback open error: -2,No such file or directory

I have run this as root:

(none)dimko's Desktop /home/dimko # cat /proc/asound/card0/pcm*/sub*/hw_params
closed

Changes I made to pulse server settings, under my specific user:

dimko@(none)dimko's Desktop ~ $ cat /home/dimko/.config/pulse/default.pa
load-module module-alsa-sink device=default
load-module module-alsa-source device=default
load-module module-native-protocol-unix

Now with pulseaudio being down, i still have issues with alsa:

dimko@(none)dimko's Desktop ~ $ ps aux |grep pulse
dimko     8611  0.0  0.0  12400   924 pts/1    S+   16:42   0:00 grep --colour=auto pulse

dimko@(none)dimko's Desktop ~ $ speaker-test

speaker-test 1.1.6

Playback device is default
Stream parameters are 48000Hz, S16_LE, 1 channels
Using 16 octaves of pink noise
ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.1.6-r1/work/alsa-lib-1.1.6/src/pcm/pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave
Playback open error: -2,No such file or directory

So whatever pulse is doing is extremely invasive and harmful.

Even after you shut it down - it has effect on ALSA.

So, how can I remedy it?

How can i make pulse non invasive, and just use one PCM i want to generally use, that works just fine without pulse?

I want something like this: pulse -> alsa PCM 'default' -> diver - > sound on my PC.

I want pulse to act like program that can take other programs output?

It already works that way if I install pulse and dont restart my computer.

Also i noticed, that 'pulse' PCM is not present untill I restart my Gentoo.

I did not modify systemd to start pulse by default.

Anyone, please?

Regards

Dmitri

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