Arch Linux

ajstein

Member

Registered: 2013-11-03

Posts: 36

[SOLVED] Settings for Internal Microphone in Macbook Pro 6,2

So, I have read the alsamixer page on the Arch Wiki and Macbook specific pages and I have still been thrown for a loop.

[me@laptop ~]$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
00:1a.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
[b]00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)[/b]
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB Universal Host Controller (rev 06)
00:1d.7 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10)
03:00.0 Network controller: Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01)
04:00.0 FireWire (IEEE 1394): LSI Corporation FW643 [TrueFire] PCIe 1394b Controller (rev 08)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05)

And here is the output from aplay.

[me@laptop ~]$aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: MID [HDA Intel MID], device 0: CS4206 Analog [CS4206 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: MID [HDA Intel MID], device 1: CS4206 Digital [CS4206 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
[me@laptop ~]$ man aplay
[me@laptop ~]$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=MID
    HDA Intel MID, CS4206 Analog
    Default Audio Device
sysdefault:CARD=MID
    HDA Intel MID, CS4206 Analog
    Default Audio Device
front:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    Front speakers
surround40:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=MID,DEV=0
    HDA Intel MID, CS4206 Digital
    IEC958 (S/PDIF) Digital Audio Output

I needed to make a Skype call and I could not figure which device is the input/capture device, and I want to use the internal mic as the capture device, not an external component.  When I open up alsamixer, and look at the capture devices, I am concerned because I notice the following.

My current alsamixer settings

Can anyone clue me into which one is the one I should unmute and set up?  I have played around with Audacity for a while changing these and I am just spinning my wheels.

Last edited by ajstein (2014-06-28 09:16:18)

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: [SOLVED] Settings for Internal Microphone in Macbook Pro 6,2

You need to use code tags instead of quote tags for things like... code.

ajstein

Member

Registered: 2013-11-03

Posts: 36

Re: [SOLVED] Settings for Internal Microphone in Macbook Pro 6,2

You need to use code tags instead of quote tags for things like... code.

I usually use code blocks for code, not command output.  But I will follow conventions.

In any event, I am having one of the weeks.  It appears I need set up the appropriate modprobe config to specify my sound device type.  With root, do the following.

echo options snd-hda-intel model=mbp55 > /etc/modprobe.d/mbp62-sound.conf

I found other model information, but found using 5,5 settings works for MacBook Pro 6,2 laptops through searching generally through other distro docs and found this for Gentoo.

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] Settings for Internal Microphone in Macbook Pro 6,2

You need to use code tags instead of quote tags for things like... code.

I usually use code blocks for code, not command output.  But I will follow conventions.

When posting configs, code or command output, please use [ code ] tags, because it makes the code more readable and - in case of longer listings - more convenient to scroll through.