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Re: Intel Mac Mini Audio does not work



On 10/21/2009 03:12 PM, Tom "spot" Callaway wrote:
On 10/21/2009 10:10 AM, "Jóhann B. Guðmundsson" wrote:

  
Did you get a sound from the rear jack? 
    
This mac mini has two rear analog jacks, one marked as input, one marked
as output "headphones". I currently have outputs plugged into both
ports, but I have yet to get any sound from either one.

This is exactly how it looks:

http://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Mac_mini_opening.jpg/800px-Mac_mini_opening.jpg

  
Smoltprofile please ;)
    
http://www.smolts.org/client/show/?uuid=pub_6cf87e28-1e73-4453-8fe4-98d3cadfe316
  


Ah-ha just what I thought chipset 82801G :)  Known to be badly wired by hardware manufacturers. On the macmini the linux kernel used to send the output to the line in so plug into that :)

cat /proc/asound/card0/codec#* | grep Codec

Let's asume that you get STAC9220/9221

/usr/share/doc/kernel-doc-<version>/Documentation/sound/alsa/HD-Audio-Models.txt

STAC9220/9221
=============
  ref           Reference board
  3stack        D945 3stack
  5stack        D945 5stack + SPDIF
  intel-mac-v1  Intel Mac Type 1
  intel-mac-v2  Intel Mac Type 2
  intel-mac-v3  Intel Mac Type 3
  intel-mac-v4  Intel Mac Type 4
  intel-mac-v5  Intel Mac Type 5
  intel-mac-auto Intel Mac (detect type according to subsystem id)
  macmini       Intel Mac Mini (equivalent with type 3)
  macbook       Intel Mac Book (eq. type 5)
  macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
  macbook-pro   Intel Mac Book Pro 2nd generation (eq. type 3)
  imac-intel    Intel iMac (eq. type 2)
  imac-intel-20 Intel iMac (newer version) (eq. type 3)
  ecs202        ECS/PC chips
  dell-d81      Dell (unknown)
  dell-d82      Dell (unknown)
  dell-m81      Dell (unknown)
  dell-m82      Dell XPS M1210
  auto          BIOS setup (default)

And since this white little box contains the Atheros Communications, Inc. AR242x 802.11abg Wireless PCI Express Adapter it's an 2006 macmini which means version 1 or 2 I think first try it with the /etc/modprobe.d/alsa-base.conf  ( if none then none ) and make sure nothing is blocking line in since the audio might be passed out that way ;)  alsamixer -c0 and to monitor pulseaudio output kill pulseaudio ( pulseaudio -k ) and start it verbosly ( pulseaudio -vvvvv  ) If nothing ( without out any extra alsa tweaking put options snd-hda-intel model=intel-mac-v1 ( or 2 or auto ) /etc/modprobe.d/alsa-base.conf and repeat :)

JBG 
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