View Full Version : [ubuntu] Microphone not working in Acer Aspire 2930

November 16th, 2008, 10:04 PM
I have the latest Ubuntu 8.10 installed on my Acer 2930, everything so far seems to work (sound, webcam, wifi, bluetooth) but the microphone.

The PulseAudio Applet shows nothing for recording. When I go to the Sound Preferences I have nothing related to microphone muted.

Any help on this issue?

November 18th, 2008, 08:01 PM

Any ideas on how I can check microphone settings to force my mic to be used / recognized?

November 28th, 2008, 06:03 PM
i also have acer 2930 and no mic. irritating, cause i have to use ****** vista to skype people..
please can somebody figure it out?

December 2nd, 2008, 08:18 PM
hey guys,
I have now installed 32-bit version. Have you found out any possibilities to make the mic working? Also if I play music and insert my headphones the comp is still using the speakers. Any idea how to fix this?
Thanks a lot for any advice.

December 25th, 2008, 02:27 AM
Ubuntu don't automatic if you plug the headphone jack, speaker mute. You must manually turn off.

Open the properties of volume. There 2 volume slider, first one for speaker and the second is for headphone. If you want to use headphone and want the speaker mute, just slide down the speaker, vise versa.

December 26th, 2008, 01:27 AM
@zdendour still no solution for me

@purba every other laptop I've used Ubuntu with this worked well, except this model.

January 8th, 2009, 05:45 AM
I'm considering purchasing an acer aspire 2930, the ultra mobile 13" screen vversion.

Could you possibly tell me which version of the 2930 you guys are running and whether the only problem you are experiencing is with the microphone.

Many thanks!

January 9th, 2009, 03:07 PM
Hey there, experiencing the same problem with the Microphone... and it's the only problem i've occurred so far.

mine is the 2930 - 12", 2.0 GHz, 3 GB Ram, 250GB hard drive.

I Love the computer, i'm running it dual boot with Ubuntu and Vista Home Premium (which came pre-installed).

a few complaints:
- Speakers are pretty weak.
- A lot of junk pre-installed software with Vista
- Computer is a bit heavy compared to it's size (about 2 K.G)

But despite of the above, it's a bargain.
I love it's keyboard, design, wonderful screen and hardware.

I say go for it.

Has anyone found a solution for the Microphone problem?

January 18th, 2009, 07:53 AM
You can solve it using oss sound driver instead of alsa see this link :)

January 18th, 2009, 05:07 PM
Which is the Audio device use on your system? Is it HDA + Realtek?

January 19th, 2009, 05:43 AM

January 28th, 2009, 05:08 PM
OK Sound card is HDA

Which is the sound device?

To find it out use Add/ Remove to install Device Manager.

Run it by Application --> System Tools--> Device Manager

Under Audio Device there is an entry for Sound Card
Under 'HDA Intel Sound Card' there is an entry 'ALSA Capture'.
In Summary Which is the Sound Device listed there?

Please get back.

February 19th, 2009, 08:39 PM
See: http://ubuntuforums.org/showpost.php?p=6721529&postcount=23

September 10th, 2009, 09:06 AM
OK Sound card is HDA

Which is the sound device?

To find it out use Add/ Remove to install Device Manager.

Run it by Application --> System Tools--> Device Manager

Under Audio Device there is an entry for Sound Card
Under 'HDA Intel Sound Card' there is an entry 'ALSA Capture'.
In Summary Which is the Sound Device listed there?

Please get back.

i found 2 ALSA Capture

1. ALSA Capture
Device File : /dev/snd/pcmC0D0c
2. ALSA Capture
Device File : /dev/snd/pcmC0D4c

what next?

please help

September 11th, 2009, 05:36 PM
dek_ugenk, in a terminal:

sudo lshw -C multimedia
Determine what module is being used under Configuration(i.e, snd_hda_intel).


sudo gedit /etc/modprobe.d/options
and add the following(replacing snd_hda_intel and model with your settings):

options snd_hda_intel model=acer position_fix=1 enable=yes
Save and reboot. Hope that helps.

October 14th, 2009, 09:05 AM
I have Acer 2930Z and run KarmicKoala latest kernel 2.6.31-13 AMDx64. My internal mic, the one which is close to webcam, is not working. I get permanent noise, but no reaction to vocice.

My computer has 3 jacks on the front panel: LINE IN, MIC, OUT: HEADPHONES/SPDIF. And has "Dolby Home Theater" branding. I guess this refers to SPDIF-OUT, which allows various outputs up to 7.1.
Audio chip is ALC888.

I have tried first with alsa 1.20(coming with KK), and later upgraded to the 1.21 (the latest build on alsa website, also latest on Realtek website, linux drivers). Tried various model options


I also played with all dials in the ALSA mixer. Enabling/maxing/unmuting etc. all dials for everything. Still, no voice recording from front mic. Model=3stack-dig seems supports most output modes (including 7.1).

Any idea what else I can do? Really not ready to switch to oss4.2 yet.

p.s. same mic works well in vista/w7x64.

October 14th, 2009, 09:17 AM
I also looked around the web for any reference to Acer 2930z and found this http://doc.ubuntu-fr.org/audio_intel_hda

they have model parameters for various laptops. Suggestion for 2930z is

options snd-hda-intel model=auto position_fix=0

but seems that internal mic is not working either ((micro interne non fonctionnel)

October 14th, 2009, 11:52 AM
So, I tried the model=acer-aspire-4930g
and now my mic is peaking up my voice, but very soft, almost silent. I can max volume and amplification, and then hear my voice, but background noise is terrible.

October 14th, 2009, 08:52 PM
Looks, like my mic is ok now. Not that I changed much vs. my last post. But, I had time at home to play a bit with alsa mixer, gnome alsa mixer, and gnome sound preferences and to record my voice 3 dozen times without looking like an idiot to my colleagues, and now I found a combination of settings that gives bearable speech in skype. Recording from "gnome sound recorder" is still moderately noisy, but skype employs decent noise suppression algorithms, I was surprised afer making a test skype call.

So, my settings (in addition to mentioned above model=acer-aspire-4930g)

choose StereoDuplex mode
enable mic2 and mute mic1,
set amplification (mic boost) to around 70-75%,
choose mic2 as input for recording programs.

October 14th, 2009, 08:55 PM
solnyshok, try the solution in this thread: http://ubuntuforums.org/showthread.php?t=927270&highlight=internal+mic

Failing that, you could try an external mic.

October 14th, 2009, 10:00 PM
thank you barretr. that thread advises to compile latest alsa drivers and set model=acer, which did not work for me earlier. model=acer-aspire-4930g is the parameter that makes internal mic work.

Now I my internal mic is ok. Thank you for your help.