Arch Linux

derekArch

Member

Registered: 2013-02-02

Posts: 22

[SOLVED] No Audio on Macbook air 2013

Hey all,
Currently I have no sound (either through speakers or headphone jack) on my macbook air 2013.
Card: HDA intel audio controller
Chip: Cirrus logic CS4208
when I boot up alsamixer, it says everything is unmuted and everything is at 100% volume, everything looks like its working fine but still no sound.

Things that I have already done but no effect:
blacklisted snd_intel8x0m (as per ALSA page)
added options snd-hda-intel model=intel-mac-auto to both my sound.conf and modprobe.conf files.

I am running the most up to date version of everything, including kernel version 3.12.8 which is supposed to have out of the box support for the card.
Let me know if you need any other information!

Thanks!

Last edited by derekArch (2014-01-27 03:21:58)

Spider.007

Member

Registered: 2004-06-20

Posts: 1,175

Re: [SOLVED] No Audio on Macbook air 2013

I have the same mba and never seen this problem. Are you sure it's some other application messing with the sound (jack or pulseaudio)?

derekArch

Member

Registered: 2013-02-02

Posts: 22

Re: [SOLVED] No Audio on Macbook air 2013

I pretty sure its not that. I use ratpoison as a WM (I like a minimal arrangement for my laptop) which doesn't use pulseaudio. Even when I had Gnome with pulseaudio. I still had the same issue.
So I ran speaker-test -c 2 on my computer and this is the output:

 >>> speaker-test -c 2

speaker-test 1.0.27.2

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
Playback open error: -2,No such file or directory

Which file/directory do I not have?
I have also checked amixer and none of the channels are set to 'off

derekArch

Member

Registered: 2013-02-02

Posts: 22

Re: [SOLVED] No Audio on Macbook air 2013

Fixed It! Yay! I made /etc/asound.conf as per this page
But, I modified the code slightly to:

defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 0

cheers!

Spider.007

Member

Registered: 2004-06-20

Posts: 1,175

Re: [SOLVED] No Audio on Macbook air 2013

Good to hear

frank604

Member

From: BC, Canada

Registered: 2011-04-20

Posts: 1,212

Re: [SOLVED] No Audio on Macbook air 2013

I know this is solved but I gathered a bunch of information from different sources to http://www.frankshin.com/macbook-air-62 … archlinux/
Maybe there might be something there that can help you later on?  Use with a grain of salt.