我正在嘗試做的事情：

Question

我有一台 T430 thinkpad，它無法錄製音訊。詳情如下：

我正在嘗試做的事情：

我想做的就是讓筆記型電腦的麥克風處於工作狀態。我正在使用預設系統麥克風以及我擁有的耳機（帶有可用麥克風和耳塞的單個 3.5 毫米插孔）嘗試此操作。

Thinkpad 有一個用於使麥克風靜音/取消靜音的按鈕，其上有一個 LED，指示其狀態。按下按鈕後，LED 不會切換（並且永久保持關閉）。所以我嘗試開始他們的。在進一步的研究中，我發現甚至acpi_listen沒有接收到麥克風按鈕的按下（它正在接收其他按鈕）。事實證明，這也是舊核心中的一個問題。在答案之一，所使用的腳本最終用於amixer麥克風toggle的靜音/取消靜音狀態。所以我嘗試先直接使用它，但沒有成功。我的嘗試的詳細資訊如下。

那麼，最後到底發生了什麼事？是硬體問題嗎？我不認為這是麥克風的問題，因為那樣的話，耳機應該可以工作。是卡片本身的問題還是什麼？他們是否有更好、更具體的方法來進一步調試這個問題？

嘗試：

系統設定顯示如下：

筆記：Internal Microphone - Built-in Audio當我拔下耳機時， 設備會更改為。

出於測試目的，我嘗試使用預設Audio Recorder應用程式錄製音訊：

• 使用Audio Output，Source我可以錄製正在播放的音樂。
• 與耳機Microphone一起使用SourceAudio Recorder插入，錄製的音訊除了白噪音之外什麼也沒有。
• 與耳機Microphone一起使用SourceAudio Recorder未插入因此，系統麥克風又只是白噪音。這次的不同之處在於，白噪音的聲音更大一些。

以下是amixer我嘗試錄製音訊時的設定。

• amixer -c 0 scontrols輸出

zeekhuge ● amixer -c 0 scontrols
Simple mixer control 'Master',0
Simple mixer control 'Headphone',0
Simple mixer control 'Headphone',1
Simple mixer control 'Speaker',0
Simple mixer control 'PCM',0
Simple mixer control 'Mic',0
Simple mixer control 'Mic Boost',0
Simple mixer control 'Mic Mute-LED Mode',0
Simple mixer control 'Beep',0
Simple mixer control 'Capture',0
Simple mixer control 'Auto-Mute Mode',0
Simple mixer control 'Digital',0
Simple mixer control 'Dock Mic',0
Simple mixer control 'Dock Mic Boost',0
Simple mixer control 'Internal Mic Boost',0
Simple mixer control 'Loopback Mixing',0

• 看似相關的控制項的參數：

zeekhuge ● amixer -c 0 sget 'Master',0
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 59 [68%] [-21.00dB] [on]

zeekhuge ● amixer -c 0 sget 'Mic',0
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]

zeekhuge ● amixer -c 0 sget 'Mic Boost',0
Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 2 [67%] [20.00dB]
  Front Right: 2 [67%] [20.00dB]

zeekhuge ● amixer -c 0 sget 'Mic Mute-LED Mode',0
Simple mixer control 'Mic Mute-LED Mode',0
  Capabilities: enum
  Items: 'On' 'Off' 'Follow Capture' 'Follow Mute'
  Item0: 'Follow Mute'

zeekhuge ● amixer -c 0 sget 'Capture',0
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 63 [100%] [30.00dB] [on]
  Front Right: Capture 63 [100%] [30.00dB] [on]

zeekhuge ● amixer -c 0 sget 'Auto-Mute Mode',0
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'

zeekhuge ● amixer -c 0 sget 'Digital',0
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 120 [100%] [30.00dB]
  Front Right: Capture 120 [100%] [30.00dB]

zeekhuge ● amixer -c 0 sget 'Dock Mic',0
Simple mixer control 'Dock Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]

zeekhuge ● amixer -c 0 sget 'Dock Mic Boost',0
Simple mixer control 'Dock Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

zeekhuge ● amixer -c 0 sget 'Internal Mic Boost',0
Simple mixer control 'Internal Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

因此，最初，Dock Mic Boost和Internal Mic Boost均為 0%。我嘗試了sset和。Dock Mic BoostInternal Mic Boost100%

zeekhuge ● amixer -c 0 sget 'Dock Mic Boost',0 && amixer -c 0 sget 'Internal Mic Boost',0
Simple mixer control 'Dock Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'Internal Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 2 [67%] [20.00dB]
  Front Right: 2 [67%] [20.00dB]

即使使用這些參數錄製音訊也會得到與先前相同的結果，即白噪音。

• 此外，這些是卡上的控制項1。它們似乎並不重要，但以防萬一需要它們：

zeekhuge ● amixer -c 1
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',1
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',2
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',3
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

系統詳細資訊：

Linux 核心和 Ubuntu 版本：

zeekhuge ● uname -a
Linux zeekhuge 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

lspci輸出：

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (Lewisville) (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [NVS 5400M] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
02:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)

Answer 1

好的。事實證明，麥克風在 BIOS 中被禁用。筆記一旦您更改了 BIOS 中的設置，您需要完全關閉系統，然後拔下電源並等待幾秒鐘。

如果有人需要添加更多詳細資訊、更好的調試方法或任何內容，請隨時將它們添加為答案。到那時，我會把這個當作正確的。