헤드폰을 전면 패널 잭에 연결하면 pavucontrol감지됩니다( Output Devices > USB Audio Analog Stereo > Port: Headphones (plugged in)있는 경우와 Port: Digital Output (S/PDIF)연결되지 않은 경우). 오디오가 이 수신기로 전달되면 pactl오디오가 재생되는 것처럼 보이지만(일반적인 출력 레벨 미터가 켜짐) 실제로 헤드폰에서는 소리가 나지 않습니다. 헤드폰이 다른 장치나 동일한 컴퓨터의 라인 출력 포트(안타깝게도 헤드폰의 올바른 위치에 있지 않음) 등 다른 곳에서 작동하는 것을 확인했습니다.
pactl list cards헤드폰을 연결하면 해당 카드의 출력(전면과 후면 모두 마더보드에 오디오가 내장된 것으로 보입니다)은 다음과 같습니다.
Card #2
Name: alsa_card.usb-Generic_USB_Audio-00
Driver: module-alsa-card.c
Owner Module: 8
Properties:
alsa.card = "3"
alsa.card_name = "USB Audio"
alsa.long_card_name = "Generic USB Audio at usb-0000:00:14.0-9, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:9:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.0/sound/card3"
udev.id = "usb-Generic_USB_Audio-00"
device.bus = "usb"
device.vendor.id = "0414"
device.vendor.name = "Giga-Byte Technology Co., Ltd"
device.product.id = "a010"
device.product.name = "USB Audio"
device.serial = "Generic_USB_Audio"
device.string = "3"
device.description = "USB Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
Profiles:
input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 65, available: no)
input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority: 55, available: yes)
output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6500, available: yes)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6565, available: no)
output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6555, available: yes)
output:analog-surround-21: Analog Surround 2.1 Output (sinks: 1, sources: 0, priority: 1300, available: no)
output:analog-surround-21+input:analog-stereo: Analog Surround 2.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1365, available: no)
output:analog-surround-21+input:iec958-stereo: Analog Surround 2.1 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1355, available: no)
output:analog-surround-40: Analog Surround 4.0 Output (sinks: 1, sources: 0, priority: 1200, available: no)
output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1265, available: no)
output:analog-surround-40+input:iec958-stereo: Analog Surround 4.0 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1255, available: no)
output:analog-surround-41: Analog Surround 4.1 Output (sinks: 1, sources: 0, priority: 1300, available: no)
output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1365, available: no)
output:analog-surround-41+input:iec958-stereo: Analog Surround 4.1 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1355, available: no)
output:analog-surround-50: Analog Surround 5.0 Output (sinks: 1, sources: 0, priority: 1200, available: no)
output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1265, available: no)
output:analog-surround-50+input:iec958-stereo: Analog Surround 5.0 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1255, available: no)
output:analog-surround-51: Analog Surround 5.1 Output (sinks: 1, sources: 0, priority: 1300, available: no)
output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1365, available: no)
output:analog-surround-51+input:iec958-stereo: Analog Surround 5.1 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1355, available: no)
output:analog-surround-71: Analog Surround 7.1 Output (sinks: 1, sources: 0, priority: 1200, available: no)
output:analog-surround-71+input:analog-stereo: Analog Surround 7.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 1265, available: no)
output:analog-surround-71+input:iec958-stereo: Analog Surround 7.1 Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 1255, available: no)
output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5565, available: no)
output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority: 5555, available: yes)
off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
Active Profile: output:analog-stereo
Ports:
analog-input-mic: Microphone (type: Mic, priority: 8700, latency offset: 0 usec, not available)
Properties:
device.icon_name = "audio-input-microphone"
Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo
analog-input-linein: Line In (type: Line, priority: 8100, latency offset: 0 usec, not available)
Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo
iec958-stereo-input: Digital Input (S/PDIF) (type: SPDIF, priority: 0, latency offset: 0 usec, availability unknown)
Part of profile(s): input:iec958-stereo, output:analog-stereo+input:iec958-stereo, output:analog-surround-21+input:iec958-stereo, output:analog-surround-40+input:iec958-stereo, output:analog-surround-41+input:iec958-stereo, output:analog-surround-50+input:iec958-stereo, output:analog-surround-51+input:iec958-stereo, output:analog-surround-71+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo
analog-output-speaker: Speakers (type: Speaker, priority: 10000, latency offset: 0 usec, not available)
Properties:
device.icon_name = "audio-speakers"
Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo, output:analog-surround-21, output:analog-surround-21+input:analog-stereo, output:analog-surround-21+input:iec958-stereo, output:analog-surround-40, output:analog-surround-40+input:analog-stereo, output:analog-surround-40+input:iec958-stereo, output:analog-surround-41, output:analog-surround-41+input:analog-stereo, output:analog-surround-41+input:iec958-stereo, output:analog-surround-50, output:analog-surround-50+input:analog-stereo, output:analog-surround-50+input:iec958-stereo, output:analog-surround-51, output:analog-surround-51+input:analog-stereo, output:analog-surround-51+input:iec958-stereo, output:analog-surround-71, output:analog-surround-71+input:analog-stereo, output:analog-surround-71+input:iec958-stereo
analog-output-headphones: Headphones (type: Headphones, priority: 9900, latency offset: 0 usec, available)
Properties:
device.icon_name = "audio-headphones"
Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
iec958-stereo-output: Digital Output (S/PDIF) (type: SPDIF, priority: 0, latency offset: 0 usec, availability unknown)
Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo
헤드폰을 분리한 후 위와 차이점은 다음과 같습니다.
26c26
< output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6500, available: yes)
---
> output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6500, available: no)
28c28
< output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6555, available: yes)
---
> output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6555, available: no)
51c51
< Active Profile: output:analog-stereo
---
> Active Profile: output:iec958-stereo
65c65
< analog-output-headphones: Headphones (type: Headphones, priority: 9900, latency offset: 0 usec, available)
---
> analog-output-headphones: Headphones (type: Headphones, priority: 9900, latency offset: 0 usec, not available)
(카드 #0은 HDMI 출력이 있는 GPU이고, 카드 #1은 마이크가 있는 웹캠입니다.)
저는 아치 리눅스를 사용하고 있습니다. 확인해보니 alsamixer카드에 음소거가 없습니다.