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Listing devices cannot connect to server

Aperta
  • Qualcosa non va?
#605 2 commenti 2 reazioni 0 assegnatari Vedi su GitHub

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Valutazione

Difficoltà
3/5
Tempo stimato
1-2 giorni
Idoneità per principianti
35/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Ferma
Stack tecnologico
rust
Ambito
audio-video-rtc, backend

Direzione di ricerca

Start by reading the Linux device enumeration path used by HostTrait::devices() and compare its behavior with the reported ALSA device list and JACK connection warnings. The report includes a Rust example and CPAL 0.13.4 output, but does not identify the failing component or expected behavior. Done means determining whether device listing is failing and documenting or fixing the cause.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

host - alsa platform - linux

CPAL Version: 0.13.4
Distro: Garuda Dragonized Linux

I don't really know what's causing this issue, but here's the code I've tried and the output of it

use cpal::default_host;
use cpal::traits::{DeviceTrait, HostTrait};

fn main() {
  let host = default_host();

  println!("{:?}", cpal::available_hosts());

  let devices = host
    .devices()
    .map(|it| it.map(|it| it.name()))
    .unwrap()
    .collect::<Result<Vec<_>, _>>()
    .unwrap();

  println!("{:?}", devices);
}

[Alsa]
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_route.c:877:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:877:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:877:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_dmix.c:1035:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:503:(_snd_pcm_usb_stream_open) Unknown field hint
["pipewire", "pulse", "default", "hdmi:CARD=NVidia,DEV=0", "hdmi:CARD=NVidia,DEV=1", "hdmi:CARD=NVidia,DEV=2", "hdmi:CARD=NVidia,DEV=3", "hdmi:CARD=NVidia,DEV=4", "hdmi:CARD=NVidia,DEV=5", "hdmi:CARD=NVidia,DEV=6", "sysdefault:CARD=Generic", "front:CARD=Generic,DEV=0", "surround21:CARD=Generic,DEV=0", "surround40:CARD=Generic,DEV=0", "surround41:CARD=Generic,DEV=0", "surround50:CARD=Generic,DEV=0", "surround51:CARD=Generic,DEV=0", "surround71:CARD=Generic,DEV=0", "iec958:CARD=Generic,DEV=0", "sysdefault:CARD=Microphone", "front:CARD=Microphone,DEV=0", "surround21:CARD=Microphone,DEV=0", "surround40:CARD=Microphone,DEV=0", "surround41:CARD=Microphone,DEV=0", "surround50:CARD=Microphone,DEV=0", "surround51:CARD=Microphone,DEV=0", "surround71:CARD=Microphone,DEV=0", "iec958:CARD=Microphone,DEV=0", "sysdefault:CARD=C920", "front:CARD=C920,DEV=0"]

Process finished with exit code 0
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