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#1 2016-06-16 20:08:00

Ghal
Member
From: Gothenburg, Sweden
Registered: 2015-10-09
Posts: 14

Microphone does not record sound

Hey!
Been trying to get my microphone to work but so far to no avail. The microphone is question is an internal mic in the Lenovo X1 Carbon (3:rd gen). Soundtest using arecord only return static. The mic is enabled in alsamixer, that is caption is enabled, and not muted.  I will try to supply the info I can think of below, if I'm missing something please let me know and I will add it!

arecord -l   

**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

cat /proc/asound/cards

0 [HDMI           ]: HDA-Intel - HDA Intel HDMI
                      HDA Intel HDMI at 0xe1130000 irq 47
 1 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xe1134000 irq 44

sudo lspci -vv -s 00:1b.0

00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
	Subsystem: Lenovo Device 2227
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 44
	Region 0: Memory at e1134000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0f00c  Data: 41d2
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

pacmd list-sources

3 source(s) available.
    index: 0
	name: <alsa_output.pci-0000_00_03.0.hdmi-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 1950
	volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 344 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 1
	linked by: 1
	configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
	monitor_of: 0
	card: 0 <alsa_card.pci-0000_00_03.0>
	module: 6
	properties:
		device.description = "Monitor of Built-in Audio Digital Stereo (HDMI)"
		device.class = "monitor"
		alsa.card = "0"
		alsa.card_name = "HDA Intel HDMI"
		alsa.long_card_name = "HDA Intel HDMI at 0xe1130000 irq 47"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:03.0"
		sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "160c"
		device.product.name = "Broadwell-U Audio Controller"
		device.form_factor = "internal"
		device.string = "0"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
  * index: 1
	name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 1950
	volume: front-left: 63459 /  97% / -0.84 dB,   front-right: 63459 /  97% / -0.84 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 344 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 2
	linked by: 2
	configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
	monitor_of: 1
	card: 1 <alsa_card.pci-0000_00_1b.0>
	module: 7
	properties:
		device.description = "Monitor of Built-in Audio Analog Stereo"
		device.class = "monitor"
		alsa.card = "1"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xe1134000 irq 44"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1b.0"
		sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card1"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "9ca0"
		device.product.name = "Wildcat Point-LP High Definition Audio Controller"
		device.form_factor = "internal"
		device.string = "1"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
    index: 2
	name: <alsa_input.pci-0000_00_1b.0.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 9959
	volume: front-left: 65540 / 100% / 0.00 dB,   front-right: 65540 / 100% / 0.00 dB
	        balance 0.00
	base volume: 6554 /  10% / -60.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 0 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 1
	linked by: 1
	configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
	card: 1 <alsa_card.pci-0000_00_1b.0>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "Generic Analog"
		alsa.id = "Generic Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "1"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xe1134000 irq 44"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1b.0"
		sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card1"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "9ca0"
		device.product.name = "Wildcat Point-LP High Definition Audio Controller"
		device.form_factor = "internal"
		device.string = "front:1"
		device.buffering.buffer_size = "352800"
		device.buffering.fragment_size = "176400"
		device.access_mode = "mmap+timer"
		device.profile.name = "analog-stereo"
		device.profile.description = "Analog Stereo"
		device.description = "Built-in Audio Analog Stereo"
		alsa.mixer_name = "Realtek Generic"
		alsa.components = "HDA:10ec0292,17aa2227,00100001"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-input-microphone"
	active port: <analog-input-mic>


amixer -d

Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 85 [98%] [-1.50dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB] [on]
  Front Right: Playback 74 [85%] [-9.75dB] [on]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 0 [0%] [-65.25dB] [off]
  Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
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]
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]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'
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]

cat /etc/asound.conf 

pcm.!default {
    type hw
    card 1
}

ctl.!default {
    type hw
    card 1
}

Let me know if you notice anything off, thanks!

Last edited by Ghal (2016-06-16 20:11:05)

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#2 2016-06-19 13:31:47

guillermohs9
Member
Registered: 2016-05-30
Posts: 2

Re: Microphone does not record sound

Hi! I've had trouble with the internal mic in my lenovo laptop. It seemed it didn't record anything. The solution in my case was to open pavucontrol (or whatever you use to control volume), look for the tab that contains the microphone, "unlock" the L and R channels so you can control them independently, and then set the Right channel to 0 and only set the volume in the Left channel. This did it for me. It's worth mentioning the settings didn't keep in Gnome 3.20 and it worked much better in Xfce. Now I'm using i3 and it also works fine.
Hope it helps
Cheers!

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#3 2016-06-19 18:27:00

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,668

Re: Microphone does not record sound

First off, excellent OP, contains most of the information that will help here.

Remove the /etc/asound.conf install pulseaudio-alsa instead. This will setup an /etc/asound.conf that redirects ALSA using applications to pulse. Then go into pavucontrol and switch on the input sources tab the fallback away from the monitor source and instead to the mic. If that didn't help already (should already be visible in pavucontrol if the recording meter is jumping) and you can't switch the port to the internal mic (pacmd output suggests it is detected as unavailable) try forcing it with 

pacmd set-source-port alsa_input.pci-0000_00_1b.0.analog-stereo analog-input-internal-mic

If that did help, you can hardcode that command to be always executed by appending it to the end of your /etc/pulse/default.pa without the leading pacmd. Be aware that you will likely have to move new sources i.e. skype manually to the mic input when they first appear

If that didn't help either you might want to experiment with different pin layouts using hdajackretask

Last edited by V1del (2016-06-19 18:28:16)

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