From: GitHub issues - edited <github@alsa-project.org>
To: alsa-devel@alsa-project.org
Subject: snd-loopback does not work
Date: Mon, 17 Nov 2025 00:33:16 +0100 (CET) [thread overview]
Message-ID: <1878a0be96be0700-webhooks-bot@alsa-project.org> (raw)
In-Reply-To: <1878a0be96b49200-webhooks-bot@alsa-project.org>
alsa-project/alsa-lib issue #482 was edited from Sameguyy:
```
$pactl list short sources
80 alsa_output.platform-snd_aloop.0.analog-stereo.monitor PipeWire s32le 2ch 48000Hz RUNNING
81 alsa_input.platform-snd_aloop.0.analog-stereo PipeWire s32le 2ch 48000Hz RUNNING
```
These are two interfaces that Pipewire automatically pulled in, and the sound goes into 3.0 and doesn't leave from 3.1
That is, I play a sound on hw:3.0 and when I try to read something from hw:3.1 I get silence
aplay\arecord records silence
$ uname -r
6.17.8-arch1-1 Wayland PipeWire gnome
```$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: DACX6 [DAC-X6], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: DACX6 [DAC-X6], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 3: HDMI 0 [SAMSUNG]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 3: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
```
I don't understand what I'm doing wrong
can sm1 guess
Issue URL : https://github.com/alsa-project/alsa-lib/issues/482
Repository URL: https://github.com/alsa-project/alsa-lib
next parent reply other threads:[~2025-11-16 23:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1878a0be96b49200-webhooks-bot@alsa-project.org>
2025-11-16 23:33 ` GitHub issues - edited [this message]
[not found] <1878a1c25d983300-webhooks-bot@alsa-project.org>
2025-11-16 23:51 ` snd-loopback does not work GitHub issues - edited
[not found] <1878a14f7bdd3e00-webhooks-bot@alsa-project.org>
2025-11-16 23:43 ` GitHub issues - edited
[not found] <1878a0b4e6b85200-webhooks-bot@alsa-project.org>
2025-11-16 23:32 ` GitHub issues - opened
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1878a0be96be0700-webhooks-bot@alsa-project.org \
--to=github@alsa-project.org \
--cc=alsa-devel@alsa-project.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.