Arch Linux

theseus

Member

Registered: 2011-07-20

Posts: 19

[SOLVED] Yet another microphone capture with Intel HD Audio 82801H

Hello,

I have a macbook pro 4.1.
I have been using Gentoo for years and after wanting to change, I decided to go for Arch Linux.
So I reinstalled my macbook with Arch and so far, I can't make the audio work correctly.

My problems are:

- no microphone working
- no switch between speakers and headphones when I plug them

Here is the output of lspci:

lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)

My modprobe.d/soud.conf:

alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
#alias snd-card-0 snd-hda-intel
#alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=mb5 enable_msi=1 power_save=0
#options snd-hda-intel model=laptop
alias /dev/mixer snd-mixer-oss
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss

As you can see, I tried several "model=" options (mb, laptop, ...). Only the "mb5" allows me to hear something from the speaker.

I discussed about my Gentoo experience because on this same laptop, I had it working perfectly on a kernel 2.6.39.
So I thought maybe some option in the ARCH kernel conflicts with it (I am kind of desperate).
I therefore compiled a custom kernel and removed a lot of modules that were useless for me... still no luck!
As a note, on Gentoo, I didn't have to specify the model.

To be fully complete in my description, on Gentoo, I was on 64 bits and here, I'm on 32 (for different reasons).
And I have Pulseaudio installed, not that I want to but as I like Gnome 3... But even without (unsintalling Gnome 3 and Pulseaudio), I still had the same issues, so to me, it doesn't seem to be coming from Pulseaudio, but I could be wrong.

And to answer the obvisous: no I don't have anything muted on alsamixer except "Line" and "Beep".

Thanks in advance for your help because it drives me a bit crazy...

Last edited by theseus (2011-08-24 16:04:52)

pigiron

Member

From: USA

Registered: 2009-07-14

Posts: 150

Re: [SOLVED] Yet another microphone capture with Intel HD Audio 82801H

Welcome to Arch! I run both Arch and Gentoo and like them both. I have my doubts that your sound problem is an Arch specific issue (but stranger things have happened).

If my google-fu is any good, it seems that the general consensus on getting ALSA to behave with a Macbook Pro 4.1 is:

   options snd_hda_intel model=mbp3

Here's just one (old) example:

http://osdir.com/ml/linux.ports.mactel. … 00003.html

You tried that one yet?

theseus

Member

Registered: 2011-07-20

Posts: 19

Re: [SOLVED] Yet another microphone capture with Intel HD Audio 82801H

I wasn't sure I tried it or not.
So to be sure, I have tried it and no luck, I didn't have sound coming out.

Then I double checked I realized that I wrote "mb3" and not "mbp3" (I know, "what a m****" ;-))
And it works! Even the headphone plugging part!

Anyway, huge thanks to you pigiron!

Edit: corrected typo and forgot to actually say that it works (it must have been the overwhelming emotion)

Last edited by theseus (2011-08-25 07:19:41)