ubuntu 10.04 thinkpad x100e mic doesn't work

[spfldadm]

I had to revert back to Skype 2.1.0.47, I couldn't get 2.1.0.81 to work. There is a discussion on the Skype forum about this problem.

[lidex]

I would suggest upgrading your alsa install to version 1.0.23 using the alsa-upgrade link in my sig. If no help there, try the alsa-base.conf edit I posted previously. Still no help? Need more info. Can you post the output of these terminal commands for me please:

uname -a
aplay -l
dpkg -l | grep "alsa"
head -n 1 /proc/asound/card*/codec#*

Terminal="Applications->Accessories->Terminal"
Please also include the make/model of your PC/Laptop.
Please post text output using code tags (the # in toolbar)

[battybiologist]

same problem, x100e (model 3508CTO) from lenovo.
I did a little digging and found http://www.thinkwiki.org/wiki/CX20582 from the output of the commands previously mentioned; looking on the alsa wiki, "ALSA: hda - Add CX20582 and OLPC XO-1.5 suppor" is in the changes to 1.0.21. I've tried lenovo, lenovo-101e, olpc-xo-1_5, laptop, thinkpad, lenovo-100e, and lenovo-x100e (all appended to options snd-hda-intel model=), and these have all not gotten the mic to work. system info is below.

henry@soundwave:~$ uname -a
Linux soundwave 2.6.32-23-generic-pae #37-Ubuntu SMP Fri Jun 11 09:26:55 UTC 2010 i686 GNU/Linux
henry@soundwave:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: CONEXANT Analog [CONEXANT Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
henry@soundwave:~$ dpkg -l | grep "alsa"
ii  alsa-base                                 1.0.22.1+dfsg-0ubuntu3                          ALSA driver configuration files
ii  alsa-oss                                  1.0.17-3                                        ALSA wrapper for OSS applications
ii  alsa-utils                                1.0.22-0ubuntu5                                 ALSA utilities
ii  bluez-alsa                                4.60-0ubuntu8                                   Bluetooth audio support
ii  gnome-alsamixer                           0.9.7~cvs.20060916.ds.1-2                       ALSA sound mixer for GNOME
ii  gstreamer0.10-alsa                        0.10.28-1                                       GStreamer plugin for ALSA
henry@soundwave:~$ head -n 1 /proc/asound/card*/codec#*
Codec: Conexant CX20582 (Pebble)

any help is greatly appreciated! I run a pen-and-paper RPG over skype, and rebooting is a pain.

[lidex]

Need to solve this thing already. Try this for me please.
Using a Terminal="Applications->Accessories->Terminal"
Open this file for editing:

 gksudo gedit /etc/modprobe.d/alsa-base.conf

Insert these lines at the bottom:

options snd-hda-intel model=laptop
options snd-hda-intel position_fix=1 enable=yes

Save. Close. Reboot. Check your levels in alsamixer.

 alsamixer

Press <F6> to select the correct soundcard.
Press <F3> to show playback levels. <F4> selects capture levels [or use <Tab>]
Use the left/right arrow keys to select and up/down arrow keys to change levels. <M> to mute/unmute.
Go to "System ->Preferences ->Sound" and make sure the correct soundcard is default and adjust your profile on the hardware tab.

[battybiologist]

Still doesn't seem to work

[lidex]

OK. Now try pulseaudio volume control (pavucontrol). Unlink the sliders and turn one all the way down and the other one up and see if it works. See below.

[battybiologist]

nope, no dice. according to http://http://thinkpad-x100e.blogspot.com/2010/05/how-to-activate-thinkpad-x100es-built.html, installing device chooser did it in karmic, though it has no effect on my lucid install.

[lidex]

You do have the conexant chip. There are drivers on this page that very well may solve your problems. Make sure to get the right version.
http://www.linuxant.com/alsa-driver/

[battybiologist]

huzzah! success

[juliobahar]

You do have the conexant chip. There are drivers on this page that very well may solve your problems. Make sure to get the right version.
http://www.linuxant.com/alsa-driver/

Finally someone has come out with the solution. I must say this thread should be tagged SOLVED!!!

Well I've downloaded the .deb.zip file from the above link. Installed it it really took a while building the source against my kernel.

Now I can use my mic (which turned out to be on a conexant chipset).

Good Job.