PulseAudio 无法识别笔记本电脑麦克风

Question

我试图给我的吉他调音，当我增加麦克风输入音量时，我进入了声音设置，改变了它，它起作用了。

在连接器选项列表中，选择了模拟麦克风/麦克风一。出于某种原因，我将其更改为另一个选项（模拟线路输入），并且看到它不起作用（显然，笔记本麦克风是唯一“插入”的），我尝试将其更改回来。

但是当我这样做时，连接器选项会自动跳到不是麦克风、线路输入、输入或模拟视频的地方，使其无法检测到。

示例：我选择模拟视频。我改变了输入音量，它保持不变。我选择麦克风。当我尝试更改输入音量时，它跳到模拟视频。

可以以某种方式修复此错误吗？

更新：这是bse要求的信息：

Source #0
State: SUSPENDED
Name: alsa_output.pci-0000_00_1f.5.analog-stereo.monitor
Description: Monitor of Internal Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 4
Mute: no
Volume: 0: 100% 1: 100%
        0: 0.00 dB 1: 0.00 dB
        balance 0.00
Base Volume: 100%
             0.00 dB
Monitor of Sink: alsa_output.pci-0000_00_1f.5.analog-stereo
Latency: 0 usec, configured 0 usec
Flags: DECIBEL_VOLUME LATENCY 
Properties:
    device.description = "Monitor of Internal Audio Analog Stereo"
    device.class = "monitor"
    alsa.card = "0"
    alsa.card_name = "Intel 82801DB-ICH4"
    alsa.long_card_name = "Intel 82801DB-ICH4 with AD1981B at irq 11"
    alsa.driver_name = "snd_intel8x0"
    device.bus_path = "pci-0000:00:1f.5"
    sysfs.path = "/devices/pci0000:00/0000:00:1f.5/sound/card0"
    device.bus = "pci"
    device.vendor.id = "8086"
    device.vendor.name = "Intel Corporation"
    device.product.id = "24c5"
    device.product.name = "82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller"
    device.form_factor = "internal"
    device.string = "0"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-card-pci"
Formats:
    pcm                    Source #1
State: SUSPENDED
Name: alsa_input.pci-0000_00_1f.5.analog-stereo
Description: Internal Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 4
Mute: no
Volume: 0:  77% 1:  77%
        0: -6.80 dB 1: -6.80 dB
        balance 0.00
Base Volume:  42%
             -22.50 dB
Monitor of Sink: n/a
Latency: 0 usec, configured 0 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
Properties:
    alsa.resolution_bits = "16"
    device.api = "alsa"
    device.class = "sound"
    alsa.class = "generic"
    alsa.subclass = "generic-mix"
    alsa.name = "Intel 82801DB-ICH4"
    alsa.id = "Intel ICH"
    alsa.subdevice = "0"
    alsa.subdevice_name = "subdevice #0"
    alsa.device = "0"
    alsa.card = "0"
    alsa.card_name = "Intel 82801DB-ICH4"
    alsa.long_card_name = "Intel 82801DB-ICH4 with AD1981B at irq 11"
    alsa.driver_name = "snd_intel8x0"
    device.bus_path = "pci-0000:00:1f.5"
    sysfs.path = "/devices/pci0000:00/0000:00:1f.5/sound/card0"
    device.bus = "pci"
    device.vendor.id = "8086"
    device.vendor.name = "Intel Corporation"
    device.product.id = "24c5"
    device.product.name = "82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller"
    device.form_factor = "internal"
    device.string = "front:0"
    device.buffering.buffer_size = "65536"
    device.buffering.fragment_size = "65536"
    device.access_mode = "mmap+timer"
    device.profile.name = "analog-stereo"
    device.profile.description = "Analog Stereo"
    device.description = "Internal Audio Analog Stereo"
    alsa.mixer_name = "Analog Devices AD1981B"
    alsa.components = "AC97a:41445374"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-card-pci"
Ports:
    analog-input-microphone;input-microphone-1: Analog Microphone / Microphone 1 (priority. 8720)
    analog-input-microphone;input-microphone-2: Analog Microphone / Microphone 2 (priority. 8719)
    analog-input-linein: Analog Line-In (priority. 8100)
    analog-input: Analog Input (priority. 8000)
    analog-input-video: Analog Video (priority. 7000)
Active Port: analog-input-video
Formats:
    pcm

Answer 1

我遇到了和你遇到的同样的问题。我通过执行以下步骤解决了这个问题：

sudo apt-get purge pulseaudio
sudo apt-get purge pavucontrol
rm -rf ~/.pulse/

然后重新启动，重新安装pulseaudio：

sudo apt-get install pulseaudio

然后再次重新启动。