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Debian 9 上使用「虛擬輸出」代替音訊設備

tag-icon • tag-icon linux audio debian hdmi
Debian 9 上使用「虛擬輸出」代替音訊設備

作業系統:Debian 9

核心：

Linux version 4.9.0-6-amd64 ([email protected]) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) ) #1 SMP Debian 4.9.82-1+deb9u3 (2018-03-02)

使用筆記型電腦 6 個多月後，我再也看不到任何音訊設備了。

在此輸入影像描述

我昨天注意到了這一點。現在我所有的音效卡都是 HDMI 的。我使用透過 HDMI 連接到外部顯示器的筆記型電腦。但我之前沒有遇到過音訊問題。

trex@beast:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

PCI資訊

trex@beast:~$ lspci -nn | grep -i audio
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21)

我看到一些編解碼器錯誤：

trex@beast:~$ sudo dmesg | grep -i error | grep -v "wifi\|fs"
[   28.220604] snd_hda_intel 0000:00:1f.3: Codec #0 probe error; disabling it...

我嘗試重新啟動snd-hda-intel並重新配置pulseaudio，但沒有成功

sudo apt-get install --reinstall linux-image-`uname -r`
sudo modprobe snd-hda-intel
rm -r ~/.config/pulse*
pulseaudio -k

答案1

就我而言，問題是由於另一個服務（即膽怯，在系統層級啟動）正在使用聲卡而引起的，因此pulseaudio（在使用者層級啟動）沒有使用它。

要檢查這一點，您可以sudo fuser /dev/snd/*查看是否有其他進程正在使用音效卡。如果是，您應該安排該進程不啟動，這將解決問題。

為了提供更多詳細信息，我能夠透過編輯/etc/pulse/daemon.confset 來隔離問題log-level = debug，然後使用pulseaudio -k（然後 systemd 自動重新生成pulseaudio）來重新啟動pulseaudio，這就是我注意到問題的方式：

Aug  7 11:37:34 zeta pulseaudio[22178]: D: [pulseaudio] module-udev-detect.c: /devices/pci0000:00/0000:00:1f.3/sound/card0 is busy: yes

答案2

就我而言，問題在於聲卡設定檔已設定為僅輸入，而不是輸出+輸入，因此只有虛擬輸出可用。

我透過更改卡片設定檔解決了這個問題：

pacmd set-card-profile alsa_card.pci-0000_00_1f.3 output:analog-stereo+input:analog-stereo

（從這裡的說明找到：https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Only_S/PDIF_output_available）

就我而言，聲卡設定檔名稱與此處使用的名稱相同，但您的可能不同。若要尋找名稱，請執行下列操作

pacmd list-cards

範例輸出（在我更改活動設定檔之後）：

1 card(s) available.
    index: 0
    name: <alsa_card.pci-0000_00_1f.3>
    driver: <module-alsa-card.c>
    owner module: 6
    properties:
        alsa.card = "0"
        alsa.card_name = "HDA Intel PCH"
        alsa.long_card_name = "HDA Intel PCH at 0x2ffb018000 irq 144"
        alsa.driver_name = "snd_hda_intel"
        device.bus_path = "pci-0000:00:1f.3"
        sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
        device.bus = "pci"
        device.vendor.id = "8086"
        device.vendor.name = "Intel Corporation"
        device.product.id = "9d71"
        device.form_factor = "internal"
        device.string = "0"
        device.description = "Built-in Audio"
        module-udev-detect.discovered = "1"
        device.icon_name = "audio-card-pci"
    profiles:
        input:analog-stereo: Analog Stereo Input (priority 60, available: unknown)
        output:analog-stereo: Analog Stereo Output (priority 6000, available: unknown)
        output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060, available: unknown)
        output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: unknown)
        output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5460, available: unknown)
        output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: unknown)
        output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 360, available: unknown)
        output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: unknown)
        output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 360, available: unknown)
        output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5200, available: unknown)
        output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5260, available: unknown)
        output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 100, available: unknown)
        output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 160, available: unknown)
        output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 100, available: unknown)
        output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 160, available: unknown)
        output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5200, available: unknown)
        output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5260, available: unknown)
        output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 100, available: unknown)
        output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 160, available: unknown)
        output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 100, available: unknown)
        output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 160, available: unknown)
        off: Off (priority 0, available: unknown)
    active profile: <output:analog-stereo+input:analog-stereo>
    sinks:
        alsa_output.pci-0000_00_1f.3.analog-stereo/#1: Built-in Audio Analog Stereo
    sources:
        alsa_input.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
        alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#2: Monitor of Built-in Audio Analog Stereo

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