Hello,

I'm not so good in Linux, I have Mint on my principal laptop, and Slackware on the other, I've installed it following a book (I love it).

My microphone doesn't work on my laptop lenovo. I'm not so good in Linux, I have Slackware, I've installed it following a book (I love it).

I've installed alsa, but there is no improvement.

Can you help me, please to configure properly my microphone.

Here is some information:

1/ bash-4.3# lspci | grep [Aa]udio ; lsusb | grep [Aa]udio
00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
bash-4.3# cat /proc/asound/pcm
00-00: CX20751/2 Analog : CX20751/2 Analog : playback 1 : capture 1
00-03: HDMI 0 : HDMI 0 : playback 1

2/**** Liste des Périphériques Matériels PLAYBACK ****
carte 0: PCH [HDA Intel PCH], périphérique 0: CX20751/2 Analog [CX20751/2 Analog]
Sous-périphériques: 1/1
Sous-périphérique #0: subdevice #0
carte 0: PCH [HDA Intel PCH], périphérique 3: HDMI 0 [HDMI 0]
Sous-périphériques: 1/1
Sous-périphérique #0: subdevice #0

3/ bash-4.3# lspci
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
00:1c.3 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 4 (rev 0e)
00:1d.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB EHCI (rev 0e)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
bash-4.3# dmesg | grep snd
[ 11.725319] snd_hda_intel 0000:00:1b.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 12.081382] snd_hda_codec_conexant hdaudioC0D0: CX20751/2: BIOS auto-probing.
[ 12.082623] snd_hda_codec_conexant hdaudioC0D0: autoconfig for CX20751/2: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
[ 12.084529] snd_hda_codec_conexant hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 12.086416] snd_hda_codec_conexant hdaudioC0D0: hp_outs=1 (0x16/0x0/0x0/0x0/0x0)
[ 12.088316] snd_hda_codec_conexant hdaudioC0D0: mono: mono_out=0x0
[ 12.090160] snd_hda_codec_conexant hdaudioC0D0: inputs:
[ 12.091984] snd_hda_codec_conexant hdaudioC0D0: Internal Mic=0x1a
[ 12.093841] snd_hda_codec_conexant hdaudioC0D0: Mic=0x19
[ 12.098825] snd_hda_codec_conexant hdaudioC0D0: Enable sync_write for stable communication
bash-4.3# lsmod |grep uvcvideo
uvcvideo 78423 0
videobuf2_vmalloc 5260 1 uvcvideo
videobuf2_v4l2 20079 1 uvcvideo
videobuf2_core 23494 2 uvcvideo,videobuf2_v4l2
videodev 157334 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
bash-4.3# lsusb | grep snd
bash-4.3# lsusb | grep uvcvideo
bash-4.3# arecord -l
**** Liste des Périphériques Matériels CAPTURE ****
carte 0: PCH [HDA Intel PCH], périphérique 0: CX20751/2 Analog [CX20751/2 Analog]
Sous-périphériques: 1/1
Sous-périphérique #0: subdevice #0

Can you get it to work with a 2.5mm jack headset from your phone? because that's how I use my mic in the laptop.

I've never been able to get the interal mic working on my Lenovo Ideapad U330p. No matter how I fiddle with the settings, it's either dead or producing white noise.
If one makes a google search for "lenovo internal mic linux" one get a lot of hits - some people have been able to solve it, others haven't.
Headsets, both wired and bluetooth, works great, though.

It doesn't work with it, I've tried also, before. Thank you for your answers.

Hi, docbg. I don't know much about the audio settings [or much else for that matter. ] in linux. Especially not from the terminal. And I only know the KDE desktop a little, so if you have a different desktop, my suggestion for you may not work.

I had a problem with my mic and the Zoom app. I was able to fix it this way:

In KDE, I went to the volume control > Mixer > Settings > Audio Setup and then a newer, larger window called KDE Audio and Video Settings open. I went to the 2nd tab, Hardware, and messed around with the menus there until I was getting sound in Zoom.

You'll want to have an app open that is using the mic while you mess around with the settings, that way you can tell if the settings are making a difference.

I don't know anything about Lenovo hardware, so I can't suggest any particular settings for you to try. My question and answer for the forum might have some info to help you. You can find that here: https://www.linuxquestions.org/quest...ne-4175690273/

1 members found this post helpful.

thank you so much- that works. I didn't know how to view the specifications, but you told me in your message! Thank you so much!!

You're welcome! I always come here asking for help (and lots of people help me!), so I'm glad I can offer help to someone for once.

Since your problem is solved, you can go to the top of the thread and look for "Thread Tools" and mark "Solved".