I have a Lenovo x201 with Conexant CX20585 (learned it from <code>cat /proc/asound/card0/codec#* | grep Codec</code> I have struggled for days to have my internal mic working, everything else worked (external mic, audio, HDMI audio) though. Here is what I did, which finally solved my problem (Ubuntu 14.10, alsa driver)
1. Installed the nightly alsa drivers for my distribution following this guide https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS 2. ran "alsamixer" command from terminal to make sure my mic is not muted (press "m" to mute/onmute on the device; also I disabled "automute" here (up/down arrow) 3. After I looked up all entries matching my hardware Connexant by scrolling over alsa docu file on my laptop: <code>zless /usr/share/doc/alsa-base/driver/HD-Audio- Models.txt.gz</code> I've tried adding different entries to alsa-base.conf file with command <code>vi /etc/modprobe.d/alsa-base.conf</code> Finally this one was what I needed (but only turned out after step 4...): <code>options snd-hda-intel model=ideapad</code> 4. !!! Most important!!! None of the "tricks" worked until I have re-checked whether my internal mic is enabled or disabled in BIOS. It was ENABLED of course, but I've changed it to disable, then enabled again, and saved with F10. Then not only rebooted, but SHUT DOWN completely the laptop (the BIOS help says to shutdown with AC power removed (!) to enable internal mic. Then after power on again: mic worked! (Tested and confimed in Skype as well, by calling Echo / Sound Test service.) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1132780 Title: [Lenovo X201 3323DAG, Conexant CX20585, Pink Mic, Right] Wrong input routing Status in alsa-driver package in Ubuntu: New Bug description: Hardware: Lenovo X201, Intel 5 Series/3400 Series Chipset High Definition Audio On this laptop, PulseAudio detects three jacks: chris@lap-x201:~/Dropbox/projects/ischool/network-scripts$ pacmd list-sources | grep analog-input-microphone analog-input-microphone-internal: Internal Microphone (priority 8900, available: no) analog-input-microphone-dock: Dock Microphone (priority 7800, available: no) analog-input-microphone: Microphone (priority 8700, available: yes) active port: <analog-input-microphone> The analog-input-microphone input does nothing as far as I can tell. I have to manually switch the input to -dock to use the external mic. The status above (available: no/no/yes) is when an external mic is plugged in. When I unplug it, I get this instead: analog-input-microphone-internal: Internal Microphone (priority 8900, available: unknown) analog-input-microphone-dock: Dock Microphone (priority 7800, available: no) analog-input-microphone: Microphone (priority 8700, available: no) active port: <analog-input-microphone-internal> I think the jack input routing is messed up: analog-input-microphone- dock and analog-input-microphone are the wrong way around for audio input, but not for jack selection (connection of a mic is correctly detected on analog-input-microphone, but this input does not receive sound from the external microphone) I also think something is wrong with detection of -internal: it goes to "unknown" when no external mic is plugged in. (but it's still selected as the correct input in this case, so it does function). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 Uname: Linux 3.6.0-030600rc6-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25. ApportVersion: 2.0.1-0ubuntu17.1 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 5478 F.... pulseaudio /dev/snd/pcmC0D0c: chris 5478 F...m pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 45' Mixer name : 'Intel IbexPeak HDMI' Components : 'HDA:14f15069,17aa2155,00100302 HDA:80862804,17aa21b5,00100000' Controls : 28 Simple ctrls : 11 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT31WW-1.12' Mixer name : 'ThinkPad EC 6QHT31WW-1.12' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Mon Feb 25 12:27:00 2013 EcryptfsInUse: Yes MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HDA Intel Symptom_Jack: Pink Mic, Right Symptom_Type: No auto-switch between inputs Title: [3323DAG, Conexant CX20585, Pink Mic, Right] No autoswitch UpgradeStatus: Upgraded to precise on 2012-08-25 (184 days ago) dmi.bios.date: 12/17/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET62WW (1.32 ) dmi.board.name: 3323DAG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET62WW(1.32):bd12/17/2010:svnLENOVO:pn3323DAG:pvrThinkPadX201:rvnLENOVO:rn3323DAG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3323DAG dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-04-01T22:01:13.092794 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1132780/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp