Comment 10 for bug 462764

Revision history for this message
opus440 (opus440) wrote : Re: [Bug 462764] Re: internal mic doesn't work on acer aspire 1410 (1080T)

I've gone in the alsamixer, hit tab, gone to "Input So" and changed from
Front mic to Internal. Adjusted levels - still nothing. Raising the levels
just creates static.

BTW both external sound and mic work (using the plugs on the side of the
system). WebCam also works. Only the internal mic - a small mic near the
camera - doesn't pick up.

On Fri, Nov 20, 2009 at 10:02 PM, Daniel T Chen <email address hidden>wrote:

> @opus440
> According to your original amixer output, you are capturing from the
> front mic jack (ext mic), not the internal mic:
>
> Simple mixer control 'Input Source',0
> Capabilities: cenum
> Items: 'Front Mic' 'Int Mic'
> Item0: 'Front Mic'
>
> However, your mixer controls are set incorrectly:
>
> Simple mixer control 'Front Mic',0
> Capabilities: pvolume pswitch
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 31
> Mono:
> Front Left: Playback 17 [55%] [-9.00dB] [off]
> Front Right: Playback 17 [55%] [-9.00dB] [off]
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ muted, pretty low
>
>
> Simple mixer control 'Front Mic Boost',0
> Capabilities: volume
> Playback channels: Front Left - Front Right
> Capture channels: Front Left - Front Right
> Limits: 0 - 3
> Front Left: 1 [33%]
> Front Right: 1 [33%]
> ^^^^^^^^^^^^^^^^^^^^^ pretty low
>
> So, unmute (cap) the 'Front Mic' mixer control, raise its level, and
> raise the level of 'Front Mic Boost'. Please note that this is the
> front mic jack, which is an external mic.
>
> --
> internal mic doesn't work on acer aspire 1410 (1080T)
> https://bugs.launchpad.net/bugs/462764
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “alsa-driver” package in Ubuntu: New
>
> Bug description:
> lspci |grep -i audio
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
> Controller (rev 03)
>
> ProblemType: Bug
> Architecture: i386
> ArecordDevices:
> **** List of CAPTURE Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
> Subdevices: 0/1
> Subdevice #0: subdevice #0
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: bg 8196 F.... pulseaudio
> /dev/snd/pcmC0D0c: bg 8196 F...m pulseaudio
> Card0.Amixer.info:
> Card hw:0 'Intel'/'HDA Intel at 0x94500000 irq 22'
> Mixer name : 'Intel G45 DEVCTG'
> Components : 'HDA:10ec0269,1025029b,00100004
> HDA:80862802,80860101,00100000'
> Controls : 23
> Simple ctrls : 12
> CheckboxCommand: alsa_record_playback
> CheckboxDescription:
> Open the volume control application by right-clicking on the speaker icon
> in the panel and selecting "Sound Preferences". Select the "Input" tab and
> choose any alternate (non-default) device(s). Select the "Output" tab and
> choose any alternate (non-default) device(s). When you are done, click the
> Test button, then speak into the microphone. After a few seconds, your
> speech will be played back to you.
>
> Did you hear your speech played back?
> CheckboxTest: alsa_record_playback_alternates
> Date: Wed Oct 28 10:33:40 2009
> DistroRelease: Ubuntu 9.10
> Package: alsa-base 1.0.20+dfsg-1ubuntu5
> PackageArchitecture: all
> ProcEnviron:
> SHELL=/bin/bash
> LANG=en_US.UTF-8
> ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
> SourcePackage: alsa-driver
> Tags: checkbox-bug
> Uname: Linux 2.6.31-14-generic i686
>