[Solved] Internal microphone not working on Lenovo

aiv · 2017-04-01 20:42:45

Hello,

I'm trying to get internal microphone to work on my laptop, Lenovo G50-45. These are the things that I've tried so far:

* I used pavucontrol to check if everything was alright. It is not muted but the meter doesn't bounce when I'm trying to use it. Actually, it constantly bounces slightly, regardless of whether there is some sound or not.
Edit: I fixed the bouncing problem by following this suggestion, but the microphone still doesn't work.

* In alsamixer, there are no muted channels at all and their levels are ok.

* I tried the solution in this topic, just in case, but amixer set "Capture" cap nothing changed. For what it's worth, it returned this:

Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 65536
  Front Left: Capture 49200 [75%] [on]
  Front Right: Capture 49200 [75%] [on]

Also, I don't really know what pieces of information could be of use to you, so this is probably going to be some kind of an overkill but please bear with me:

* cat /proc/asound/cards:

0 [HDMI           ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xf0c60000 irq 39
 1 [Generic        ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0xf0c64000 irq 40

* cat /etc/asound.conf

# Use PulseAudio by default
pcm.!default {
  type pulse
  fallback "sysdefault"
  hint {
    show on
    description "Default ALSA Output (currently PulseAudio Sound Server)"
  }
}

ctl.!default {
  type pulse
  fallback "sysdefault"
}

# vim:set ft=alsaconf:

* arecord -l

**** List of CAPTURE Hardware Devices ****
card 1: Generic [HD-Audio Generic], device 0: CX20751/2 Analog [CX20751/2 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

* cat /proc/asound/cards

 0 [HDMI           ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xf0c60000 irq 39
 1 [Generic        ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0xf0c64000 irq 40

* lspci -nn | grep -i audio

00:01.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Kabini HDMI/DP Audio [1002:9840]
00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller [1022:780d] (rev 02)

* amixer -d

Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 45689 [70%] [on]
  Front Right: Playback 45689 [70%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 65536
  Front Left: Capture 49200 [75%] [on]
  Front Right: Capture 49200 [75%] [on]

* pacmd list-cards

2 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_00_01.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA ATI HDMI"
		alsa.long_card_name = "HDA ATI HDMI at 0xf0c60000 irq 39"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:01.1"
		sysfs.path = "/devices/pci0000:00/0000:00:01.1/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "9840"
		device.product.name = "Kabini HDMI/DP Audio"
		device.form_factor = "internal"
		device.string = "0"
		device.description = "Built-in Audio"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: no)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: no)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: no)
		off: Off (priority 0, available: unknown)
	active profile: <output:hdmi-stereo>
	sinks:
		alsa_output.pci-0000_00_01.1.hdmi-stereo/#0: Built-in Audio Digital Stereo (HDMI)
	sources:
		alsa_output.pci-0000_00_01.1.hdmi-stereo.monitor/#0: Monitor of Built-in Audio Digital Stereo (HDMI)
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
    index: 1
	name: <alsa_card.pci-0000_00_14.2>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xf0c64000 irq 40"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "780d"
		device.product.name = "FCH Azalia Controller"
		device.form_factor = "internal"
		device.string = "1"
		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)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_14.2.analog-stereo/#1: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_14.2.analog-stereo.monitor/#1: Monitor of Built-in Audio Analog Stereo
		alsa_input.pci-0000_00_14.2.analog-stereo/#2: Built-in Audio Analog Stereo
	ports:
		analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-speakers"
		analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"

* pacmd list-sources

3 source(s) available.
    index: 0
	name: <alsa_output.pci-0000_00_01.1.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_01.1>
	module: 6
	properties:
		device.description = "Monitor of Built-in Audio Digital Stereo (HDMI)"
		device.class = "monitor"
		alsa.card = "0"
		alsa.card_name = "HDA ATI HDMI"
		alsa.long_card_name = "HDA ATI HDMI at 0xf0c60000 irq 39"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:01.1"
		sysfs.path = "/devices/pci0000:00/0000:00:01.1/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "9840"
		device.product.name = "Kabini HDMI/DP Audio"
		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_14.2.analog-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 1950
	volume: front-left: 49200 /  75% / -7.47 dB,   front-right: 49200 /  75% / -7.47 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: 1
	card: 1 <alsa_card.pci-0000_00_14.2>
	module: 7
	properties:
		device.description = "Monitor of Built-in Audio Analog Stereo"
		device.class = "monitor"
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xf0c64000 irq 40"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "780d"
		device.product.name = "FCH Azalia 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_14.2.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: 13076 /  20% / -42.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.80
	base volume: 13076 /  20% / -42.00 dB
	volume steps: 65537
	muted: no
	current latency: 6.55 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 .. 1999.82 ms
	card: 1 <alsa_card.pci-0000_00_14.2>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "CX20751/2 Analog"
		alsa.id = "CX20751/2 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xf0c64000 irq 40"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "780d"
		device.product.name = "FCH Azalia Controller"
		device.form_factor = "internal"
		device.string = "front:1"
		device.buffering.buffer_size = "352768"
		device.buffering.fragment_size = "176384"
		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 = "Conexant CX20751/2"
		alsa.components = "HDA:14f1510f,17aa3805,00100100"
		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: unknown)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
	active port: <analog-input-internal-mic>

Testing with arecord -d 5 /tmp/test.wav[ / aplay /tmp/test.wav, I get absolutely no sound. Perhaps I should mention that the image of my hard disk has been copied from an Acer Aspire laptop through Clonezilla, so maybe I need to make some more adjustments, at least as far as the microphone is concerned. I just don't know what else to do about this.

Any kind of help will be greatly appreciated.

Thank you for your time

Last edited by aiv (2017-04-05 11:36:09)

nbvcxz · 2017-04-04 19:26:14

Got exactly the same issue with 2 different Lenovo laptops. I don't use PulseAudio - just pure alsa. The issue was not "no sound at all from internal microphone" but "extremely quiet and noisy sound with internal microphone". The solution was quite easy: mute right internal microphone channel and digital input channel (lower to 0). Not if digital input is really needed - you can omit it. Seems that Lenovo internal microphone is detected as stereo, but works as one channel only.
Try muting not with pavcontrol but with alsamixer instead.

Last edited by nbvcxz (2017-04-04 19:30:38)

aiv · 2017-04-05 11:35:40

Hello nbvcxz and thank you for your reply.

I couldn't find a way to unlock the channels in alsamixer so that I could only mute the right one -- perhaps I didn't use the right keywords while looking into it. Your solution worked though, even if I eventually used pavucontrol to implement it. It's funny, I had muted the left one, in hope that this would work on a Lenovo laptop as well, but it only worked when I muted the right one as you suggested.

Thank you very much, I really am grateful.

tragas · 2019-04-10 14:54:42

hello nbvcxz and thank you very much

V1del · 2019-04-10 14:55:31

Glad to hear, however please don't necrobump old solved threads.

Closing.

Arch Linux

#1 2017-04-01 20:42:45

[Solved] Internal microphone not working on Lenovo

#2 2017-04-04 19:26:14

Re: [Solved] Internal microphone not working on Lenovo

#3 2017-04-05 11:35:40

Re: [Solved] Internal microphone not working on Lenovo

#4 2019-04-10 14:54:42

Re: [Solved] Internal microphone not working on Lenovo

#5 2019-04-10 14:55:31

Re: [Solved] Internal microphone not working on Lenovo

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