Microphone problem, acer timeline x 4820TG

**giova.86** · May 19th, 2010

Hy everyone. I have a problem with ubuntu 10.04 and the integrated microphone on an acer 4820tg: simply it doesn't work.
If i go in: system->preference->audio and I select the input tab I see nothing, with the output everything works fine.
I have already check with: alsamixer -V the soundlevel but the problem is that the system doesn't recognize my integrated microphone.

With

Code:

lspci | grep Audio

I obtain:

Code:

00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
01:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility Radeon HD 5000 Series]

Does anyone have any advise? Thank you, and sorry for my english

**giova.86** · May 20th, 2010

up!

**lidex** · May 20th, 2010

Can you post the output of these terminal commands for me please:

Code:

uname -a
aplay -l
cat /proc/asound/version
head -n 1 /proc/asound/card*/codec#*

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

**giova.86** · May 21st, 2010

Thank you for the replay. These are the output for the commands:

uname -a

Code:

Linux aizen 2.6.34-020634rc7-generic #020634rc7 SMP Mon May 10 09:08:52 UTC 2010 x86_64 GNU/Linux

aplay -l

Code:

**** Lista di PLAYBACK dispositivi hardware ****
scheda 0: Intel [HDA Intel], dispositivo 0: ALC259 Analog [ALC259 Analog]
  Sottoperiferiche: 0/1
  Sottoperiferica #0: subdevice #0
scheda 0: Intel [HDA Intel], dispositivo 1: ALC259 Digital [ALC259 Digital]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
scheda 1: Generic [HD-Audio Generic], dispositivo 3: ATI HDMI [ATI HDMI]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0

cat /proc/asound/version

Code:

Advanced Linux Sound Architecture Driver Version 1.0.22.1.

head -n 1 /proc/asound/card*/codec#*

Code:

==> /proc/asound/card0/codec#0 <==
Codec: Realtek ALC259

==> /proc/asound/card1/codec#0 <==
Codec: ATI R6xx HDMI

**lidex** · May 21st, 2010

Follow the alsa-upgrade link in my sig to upgrade your alsa install and report your results. First make sure to uninstall alsa-backports if you have them installed.

**glacorre** · August 7th, 2011

I find the solution
Open terminal
tap "alsamixer" a window will appear
use the TAB key
go on CAPTURE with the arrow key then tap Y until the left colonne decrease
close the window and you micro works

Note : On skype disable auto sound management