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pattjin

ALC655 + VIA8237R stereo fix

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Here's a new AppleAC97AudioVIA.kext so you can get stereo out of a VIA 8237R + ALC655 (I don't think the codec part matters as much as the controller)

 

Should work with any VIA 82xx chipset.

 

Hooray!

AppleAC97Audio.zip

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That's great, thanks dude!

 

I'll test it and report back.

 

 

Edit: Greeeeeat!! I have sound on both speakers now! It worked like a charm :P Thank you again pattjin!

 

My specs:

 

Southbridge: VIA VT8237 (487 BGA)

Sound chipset: Realtek ALC655

 

This is now on the HCL 10.4.5 Wiki

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Worx here! pattjin U´re the man!! Just wanted to know how U managed this driver please give us more info so we could fix the input too!

 

 

One question: my volume slider doesn´t work at all is this normal?

 

Edit: Just tested my input and worx too! I´m very happy!!! No need 2 buy an expensive (or unexpensive) USB sound card!!

 

I knew that someone ´ll make it sooner or later

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One question: my volume slider doesn´t work at all is this normal?

 

My volume slider works just fine.

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Jas / Proteo can one of U tell me why my volume slider does not work at all? The rest is OK but my volume slider is useless!

 

I think my chipset is VIA VT8233 not sure I´m gonna check it in Windows now

 

Also any ideas how to add this to a ISO DVD?

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This is awesome! Thanks, I'll give this a try as soon as I get home this afternoon. I've long been searching for a cure to this left-channel only annoyance

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20AppleAC97AudioEngine is not compatible with its superclass, 13IOAudioEngine superclass changed?

kextload: a link/load error occured for kernel extension /System/Library/Extensions/AppleAC97Audio.kext/

load failed for extension /System/Library/Extensions/AppleAC97Audio.kext/

 

this is in 10.4.6 so it seems this was compiled on a earlier build,too bad i was getting happy about stereo on this box

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skeewiff:

 

Actually I did nothing but replacing the file and repair its permissions with the usual commands. Are you having error messages during boot process?

 

JaS:

 

I'm using 10.4.6 Myzar patch, not sure if it's different from yours at this level. What chipset do you have?

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I just got a chance to try this out, and it's not working at all for me. Now it's saying there are no audio devices on my computer. I replaced the original file with this new one, then did chown -R root:wheel /System/Library/Extensions/AppleAC97Audio.kext - Am I perhaps missing a step? I'm using a VIA 8237 + ALC655 chip, and the 10.4.6 DVD from JaS. Does this not work with JaS' 10.4.6?

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Proteo: No error on booting just to say that I had this bug before I installed this kext the volume slide didn´t worked. I´m in 10.4.5

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maybe myzars is using some of the old 4.5 frameworks all i know is in this 4.6 install it's not working.Send me the souce and ill compile it for 4.6

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Copy and paste the new file to /System/Library/Extensions/. Choose authenticate in the dialog and enter your password. Replace the file.

 

Then open Terminal and type:

 

sudo -s

 

(enter your password)

 

cd /System/Library/Extensions

 

rm Extensions.mkext Extensions.kextcache

 

(no problem if one or both files don't exist)

 

chown -R root:wheel *.kext

 

kextcache -k /System/Library/Extensions

 

(exit terminal)

 

Applications > Disk Utility > select your volume and repair permissions

 

Quit and reboot.

 

That's exactly what i did and it worked like a charm.

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huh?the superclass is not the same.it wont load.

 

20AppleAC97AudioEngine is not compatible with its superclass, 13IOAudioEngine superclass changed?

kextload: a link/load error occured for kernel extension /System/Library/Extensions/AppleAC97Audio.kext/

load failed for extension /System/Library/Extensions/AppleAC97Audio.kext/

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You could try just copying the file AppleAC97Audio.kext/Contents/PlugIns/AppleAC97AudioVIA.kext/Contents/MacOS/AppleAC97AudioVIA, since that's really the only part that changed.

 

Of course, make it root:wheel, and all the permissions and stuff like that.

 

Now to see if I can figure out the other channels and maybe the onboard VIA8237 Ethernet as well.

 

Pat

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For those that this work:

 

a) Is the onboard audio present in the system profiler?

 

:hysterical: Does work the volume slider? Mine is VIA8237 and doesn´t work

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Also can you post what you changed in the source to fix the problem so i can compile the kext so it runs under my install.

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So no matter what this kext wont work under your install DVD JaS? As of this moment anyway...?

 

well my install uses all the frameworks from 10.4.6 so it seems the user compiled this under myzars v3 10.4.6 update and it used some of the older frameworks.myzars ppf4 uses the 10.4.6 frameworks also.if he would send me the source I would compile it so it works on this version 10.4.6,too bad i didn't use the old frameworks heh ... lol

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Eh, newer (frameworks) is better right? Is there some way to take that kext apart? I have no idea if that's even possible... I'd lend a hand if for some reason you needed it.

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