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Microphone don't work on Macbook 5,2.

Hi,
I'm using Slackware 14.0 x86_64(not current) on a Macbook 5,2 from 2009. (http://www.everymac.com/systems/appl...dia-specs.html )
Although the audio works well, the microphone do not work, at least when I try to use skype.

Code:

$ arecord -l

**** Liste des Périphériques Matériels CAPTURE ****

carte 0: NVidia [HDA NVidia], périphérique 0: ALC889A Analog [ALC889A Analog]

  Sous-périphériques: 1/1

  Sous-périphérique #0: subdevice #0

carte 0: NVidia [HDA NVidia], périphérique 1: ALC889A Digital [ALC889A Digital]

  Sous-périphériques: 1/1

  Sous-périphérique #0: subdevice #0

carte 0: NVidia [HDA NVidia], périphérique 2: ALC889A Analog [ALC889A Analog]

  Sous-périphériques: 2/2

  Sous-périphérique #0: subdevice #0

  Sous-périphérique #1: subdevice #1

Code:

# lspci

00:00.0 Host bridge: nVidia Corporation MCP79 Host Bridge (rev b1)

00:00.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)

00:03.0 ISA bridge: nVidia Corporation MCP79 LPC Bridge (rev b3)

00:03.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)

00:03.2 SMBus: nVidia Corporation MCP79 SMBus (rev b1)

00:03.3 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)

00:03.4 RAM memory: nVidia Corporation Device 0a98 (rev b1)

00:03.5 Co-processor: nVidia Corporation MCP79 Co-processor (rev b1)

00:04.0 USB controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1)

00:04.1 USB controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1)

00:06.0 USB controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1)

00:06.1 USB controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1)

00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)

00:09.0 PCI bridge: nVidia Corporation MCP79 PCI Bridge (rev b1)

00:0a.0 Ethernet controller: nVidia Corporation MCP79 Ethernet (rev b1)

00:0b.0 IDE interface: nVidia Corporation MCP79 SATA Controller (rev b1)

00:10.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)

00:15.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)

00:16.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)

02:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M G] (rev b1)

03:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)

04:00.0 FireWire (IEEE 1394): Agere Systems FW533 PCI Express 1394a Controller (PHY/Link) (rev 07)

http://i56.servimg.com/u/f56/13/96/10/57/captur10.png

Also, Phonoton (KDE) lists HDA nvidia ALC889A Analog and HDA nvidia ALC889A Analog (Default Audio Device) as the microphone tool. However, Default audio device is unavailable.

So what should I do?

HI according to your image the last control says mic

can you use the right arrow to get to it and then press up arrow a number of times
or down arrow a number of times and tell us what other options you get

you may get a front mic so if mic was in front hole
your main issue may resolve

2) when you do a mic to work be aware of the following

mic boost 100% highly to lead to distortion ---suggest you zero

3) multiple captures----3 of them suggests you may have 3 inputs
but my eyesight can not spot em

my guess is from looking at your link ports and connectivity TAB

inbuilt mic somewhere probably near screen = input 1
optical =spdif = input 2
sound out = can be converted to in = input 3
(actually on my normal non-mac tower its my line in that can be converted to caputure device)

Can you confirm pls?

4) you also have a digital mic setting but its de-active

arrow to it....press the space bar to activate, numbers should show up as read
then page up to raise volume to about 80

b) I would lower all analog mic controls to 80 but if skype starts working you can zero them

good luck

Quote:

Microphone: 1 (Internal) Sound In: 1
Details: Internal omnidirectional microphone. Optical digital audio in.

I thought that I already replied but anyway.

I can't activate the 3 mic options and when I use the up and down arrows, only ''mic'' changes to ''cd'' and ''Line''.

Quote:

my guess is from looking at your link ports and connectivity TAB

inbuilt mic somewhere probably near screen = input 1
optical =spdif = input 2
sound out = can be converted to in = input 3
(actually on my normal non-mac tower its my line in that can be converted to caputure device)

Can you confirm pls?

Sorry, I did not understand this part...

I can't activate the digital but I can change its value with the arrows up and down...

Quote:

tell us what other options you get

Your answer is mic, cd,line

Quote:

but my eyesight can not spot em

Now I can thanks

Quote:

mic boost 100%

pls confirm you understood this bit and have done it pls

Quote:

Sorry, I did not understand this part

Well I was confused on why you had 3 caputures showing up in your image.
It now appears, altho you will need to confirm that your mixer shows all caputures all at once when
only ONE can be set at a time.

2) Back to digital.

Do you have a S/PDIF hole?

3) try a non-skype sound test with various volumes set by you

Code:

arecord -d 5 -f cd test.wav



aplay test.wav

Before doing your first test 100 % the digital

now test with all volumes at 100% but 0% boost

report if you hear anything

assuming you can

keep all analogs activated but 0% all of them
keep 100% digital and retest
report if anything heard
----if nothing heard this digital may well be your S/pdif

b) I have good results with a volume set at 80% for digital
0% for analog
analog is activated

good luck