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Fixing sound (ALC882) on an Intel 945 chipset

X-iT

By X-iT,
in Hardware Components and Drivers

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Rammjet
Rammjet
Posted
Posted
A few people have asked about how to explore the device IDs, etc. present on your system. I give you the elegant, OS X solution: IORegistryExplorer.app

Cool!

 

The other way is to use Windows. Go to Device Manager. Find the device you are interested in. Get Properties on it and click on the Details tab. The vendor id is after the VEN item and the device id is after the DEV item.

 

but i System Extension cannot be used error, even after using disk utitly, and when i use the chown cmd line i get opperation not permitted any ideas???

In Terminal, try the following:

sudo chown -R root:wheel /System/Library/Extensions/
sudo chmod -R 755 /System/Library/Extensions/
sudo rm /System/Library/Extensions.mkext
sudo rm /System/Library/Extensions.kextcache

Reboot

hacintosh
hacintosh
Posted
Posted
What OS X version are you using ? I´m using 10.4.7. And this .kext is for pelo who have already sound output. Because you also need the AppleAzzalia for output. I´m going to test it now at my other board, an Asus P5LD2-VM (my other one is P5LD2-VM DH) and a will edit my post later if it works at this one too. If it works, it should work on your P5LD2 Deluxe. I can see the device sound input, but I have nothing to test it if it really works.

 

Edited - Ok, I´ve tested on a P5LD2-VM and P5LD2-VM DH and it appears the Input Sound device.

 

I´m using the following .kexts and I send you screenshots of input and output devices. Sound output is works fine, input not tested yet.

 

I unziped the files to / and used

 

cp -rfv /AppleHDA.kext /System/Library/Extensions/

cp -rfv /AppleAzaliaAudio.kext /System/Library/Extensions/

rm -f /System/Library/Extensions.mkext

rm -f /System/Library/Extensions.kextcache

disktutil repairPermissions /

reboot

 

THANK YOU!

 

Tried this over the weekend & worked like a charm! Showing both Input & Output... Used the terminal to repair disk permissions (like Rammjet helpfully posted, ta!).... essential step!

 

hardware p5w dh, conroe e6600

Waheiba
Waheiba
Posted
Posted

I've been trying alot 2 make my audio OUTPUT work but all tries have failed.

I've got the ALC882 & a gigabyte 945P motherboard.

I've tried most of the solutions mentioned but i get an error most of the extensions that i edited in their values.

 

in "About this Mac" in the "Audio (built in)": No information found.

I dont know if thats normal but i think so

 

I know the vendor & device IDs (exactly as were mentioned b4) I'd really appreciate the help :S

 

thnx in advance

Rammjet
Rammjet
Posted
Posted
I've been trying alot 2 make my audio OUTPUT work but all tries have failed.

Follow this: http://forum.insanelymac.com/index.php?showtopic=18642

 

If you are still having problems, look at the Appendix to the guide and verify your vendor and device ids - both sets of them.

 

And if you are still getting errors on some kexts, then do this:

Go into Terminal and type:

 

cd /System/Library/Extensions
sudo find (name-of-kext) -type d -exec /bin/chmod 0755 {} \;
sudo find (name-of-kext) -type f -exec /bin/chmod 0644 {} \;

example: sudo find AppleVIAATA.kext -type d -exec /bin/chmod 0755 {} \;

s0106267
s0106267
Posted
Posted

Hi guys......

I have a prob here....I have these ID's for my hardware....

 

 

Family ICH7

 

Realtek High Definition Audio

 

HDAUDIO\FUNC_01&VEN_10EC&DEV_0861&SUBSYS_11790000&REV_1003\4&C3E5A58&0&0001

 

i.e. 10ec0861

 

 

HUB

 

Microsoft UAA BUS Drive For High Definition Audio

 

PCI\VEN_8086&DEV_27D8&SUBSYS_FF001179&REV_02\3&B1BFB68&0&D8

 

and 27d88086

 

 

But still does not work

 

How to find the model number of my device

  • 2 weeks later...
MrBryan
MrBryan
Posted
Posted

I discovered that it works with P5LD2 .. but only when you CRANK the input, i mean, with a preamp.

 

The sound input creeps into the sound mix, but i'm not able to record it, and it doesn't register in the mic input "input level" meter at all

 

I have the preamp for my mic set a level that would usually oversync the hell out of it, and its just barely audible when i talk into the mic

 

 

Hope that moves things along! Thanks for working on this,

 

Bryan

giandal
giandal
Posted
Posted
THANK YOU!

 

Tried this over the weekend & worked like a charm! Showing both Input & Output... Used the terminal to repair disk permissions (like Rammjet helpfully posted, ta!).... essential step!

 

hardware p5w dh, conroe e6600

 

Same board, the sound pref shows indeed both input and output, but the input is not working...

sjogro
sjogro
Posted
Posted
A few people have asked about how to explore the device IDs, etc. present on your system. I give you the elegant, OS X solution: IORegistryExplorer.app

 

how do i know which is my sounddevice ?

how do i know what kind of onboard-audio chipset i have ?

 

Picture1.png

 

edit: i got sound working, i think this is what did the trick; http://www.nedprod.com/Niall_stuff/MacOS%20X/index.html

Fixing the Sound (AC97)

 

Download this and unstuff it into your root directory on 'Apple MacOS X' drive (Safari will decompress it for you, but if not then use 'unzip'). Open a terminal and type the following:

 

sudo -s

<type your password>

cp -R /AppleAC97Audio.kext /System/Library/Extensions/

cd /System/Library/Extensions/AppleAC97Audio.kext/Contents/PlugIns/

kextload AppleAC97AudioIntelICH.kext

(at this moment, it should load without error)

rm /System/Library/Extensions.kextcache

kextcache -k /System/Library/Extensions

 

Thanks to macgirl for this improved AppleAC97Audio.kext.

 

my audio is working through the line-out port, so i didn't notice all this time it was already working !

i had to change my jackplug from the green to the black port....

hope this was useful to anyone.

  • 4 weeks later...
braveskunk
braveskunk
Posted
Posted

hi guys. just installed 10.4.8 and got problem with sound and etherner(sic!).i tried guide from this site.my realtek HDAudio is 0x10ec0883 so i changed everything and now system cannot use the extension.it says to reinstall it,but heres another problem:where 2 get proper one cos i didn't make a backup(silly i know) and i don't want to reinstall it from beginning again. anyone can help me? my spec: gigabyte 8i945gzme-rh mobo, pentium d820,512DDRII,latest Semthex kernell

  • 3 weeks later...
krizko
krizko
Posted
Posted

Has anybody had success using any sort of Audio Input on their Conexant HDA sound card? Mine is on my HP DV1708nr notebook, and I got the sound working using this method. However, I want to try audio conference via iChat and I have no way to get a mic working as my Mic input, and Line input are nonfunctional. Under system preferences it shows no inputs found. Anybody who can steer me in the right direction will be greatly appreciated! Thanks!

 

I'm also unable to use even a USB Mic, I'm not sure if that is because of something that was done with the kext's or what.. any help!

eyemac
eyemac
Posted
Posted

I realize there is a solution for ALC880 based on the AppleHDA.kext 10.4.5. However, that solution does not include SPDIF in/out etc, only line in and line out two channel. Is it possilbe to use the more current 10.4.8 (kernel 8.8.1) ALC882, 883 888 AppleHDA.kext modified for 880? Thanks. Steve

  • 4 weeks later...
  • 3 months later...
  • 1 year later...
putaogan
putaogan
Posted
Posted
The new Intel HD audio system works differenty then the "old" AC97 audio device.

 

Basically it comes to this:

 

There is a special bus for audio devices. On to this bus you can attach several devices (but usually only an audio controller is installed) In my case this is a Realtek ALC882 HD audio device on an Intel 945 Chipset.

 

Some people reported their ALCxx HDA was working after booting Windows XP before booting OSX. This makes sense because then the controller bus was already initialized and was probably not reset after rebooting

 

What I did to make ik work:

 

First: find the device/vendor ID of your HD audio Hub (for the Intel 945 Chipset it's 0x27d88086)

Second: find the device/vendor ID of your audio device (for the Realtek ALC882 it's 0x088210ec)

(I assume you know how to find this)

 

As reported before, the ALC8xx HD audio controller uses the AppleAzaliaAudio.kext

 

Open /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/Info.plist and find the key "Realtek ALC880/ALC860 Codec Driver"

 

Below this key there is something like this.

 

<key>IOHDAudioCodecVendorID</key>

<string>0x10ec0880 0x10ec0882</string> (add you vendor/device ID here)

 

Pleas note that the device/vendor ID is turned around So it's Vendor ID first and Device ID second!)

 

After this open /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/PlugIns/AppleAzaliaController.kext/Contents/Info.plist

 

Find the key "IOPCIPrimaryMatch"

Now edit the string below and add your IO controller hub ID

<string>0x26688086 0x27d88086</string> (The second ID is for the Intel 945 chipset)

 

After saving the files go to \System\Library and remove Extenstions.kextcache and Extensions.mkext

They will be rebuild after rebooting

 

Now reboot and you should have sound!

 

Good Luck!

 

X-iT

 

UPDATE:

 

If you have trouble fixing your sound under 10.4.3. (Crashing OSX on boot time) First remove the ALC882 device ID from AppleHDA.kext!

 

Hi, First of all. I want to thank you for posting this! It worked for me!

I recently installed jas Mac OS 10.4.7 on my desktop(Gateway 706GE).

In XP:

A. Under "Sound, video and game controllers", select "Realtek High Definition Audio". Get Properties and then click on the Detail tab.

My audio vendor ID is 10EC, device ID is 0880; expressed in plist as 0x10ec0880.

 

B. Under "System devices", from "Microsoft UAA Bus Driver For High Definition Audio",

My vendor Id is 8086 and device ID is 2668; expressed in plist as 0x26688086.

 

so I made the changes as instructed in this post using terminal (for command language, refer to this article)

Then I fixed this problem!

I am happy as long as output works, coz I don't need input.

 

Thanks again for this helpful instruction!

bow/

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