Ubuntu: Microphone not working on Lenovo G470



Question:

I used a Lenovo G470 laptop (Core i5 2410M processor, AMD Radeon 6370M and 2GB DDR3 RAM) and I installed Ubuntu 12.04.

I can't get the microphone to work.

I encountered this type of issue before in my old Acer Aspire One with Ubuntu 10.04/10.10, and installing PulseAudio Volume Control and tweaking a little solves the problem.

I tried the same solution to no avail in 12.04. I tried entering the alsa in terminal and my mic is not detected there.

Does anybody encountered a similar problem? Any help will be greatly appreciated.


Solution:1

I had the same problem and found a way to the solution in http://ubuntuforums.org/showthread.php?t=2011304

  1. Edit file /etc/modprobe.d/alsa-base.conf by hitting Alt+F2 and run gksudo gedit /etc/modprobe.d/alsa-base.conf.
  2. Add a new line and insert options snd-hda-intel model=asus
  3. Restart your computer

The microphone will work, but the volume will be too low.

The thread I linked above shows that the next step is to run PulseAudio Device Chooser to adjust the input volume of the microphone. However, I can't find it in the Ubuntu Software Center. When I tried to install padevchooser from terminal, it is said that:

Package padevchooser is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source

It seems that the tool is now replaced, and in Ubuntu Software Center, I found PulseAudio Maanager instead. After you've got it installed, run paman from Alt+F2.

PulseAudio Manager

Click on Devices tab. Select your input device from the list and click Properties. Then, adjust the input volume as you see fit.

Adjust the input volume.

Be careful, though, as setting the volume too high will provide a noisy recording.

Hope that helps. :)


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