Thread: ALC272 Not Whorking help need good Kext

Hy to anyone who can help and has any more experience than me.
My problem is that I installed succesfully IAKTOS L2 on my ACER Emachines E732G
Intel I3-380M (Motherboard HM55-CP)
AMD Radeon HD 6550M (used from installer 48xx kext with framebuffer Duckweed works like a charm)
Ethernet Broadcom 5778 (used the ARBCM57780 kext and works fine)
Wi-fi Broadcom 802.11n (I didn't try to install it yet but I will try it at a latter time and see if i maneged to make it work)

Now the problem is my Audio Device's I installed lot's and lot's of kext but nothig to work only my mic works with some kext's but even the mic has a too big sensivity.
So I ask you all if do you know how can I make my audio work my details for audio device are down here(PS:I don't need my Mic to work only the Speakers and Green out put for HeadPhones):

AUDIO DRIVER HD & ALC272X

Field Value
Device Properties
Device Description Realtek ALC272
Device Description Realtek High Definition Audio
Device Type Audio
Bus Type HDAUDIO
Device ID 10EC-0272
Subsystem ID 1025-0498
Revision 1000
Hardware ID HDAUDIO\FUNC_01&VEN_10EC&DEV_0272&SUBSYS_10250498& REV_1000

Field Value
Device Properties
Device Description Intel Ibex Peak PCH - High Definition Audio Controller [B-2]
Device Description High Definition Audio Controller
Bus Type PCI
Bus /Device/Function 0 / 27 / 0
Device ID 8086-3B56
Subsystem ID 1025-0498
Revision 05
Hardware ID PCI\VEN_8086&DEV_3B56&SUBSYS_04981025&REV_05



Field Value
Device Properties
Device Description ATI Radeon HDMI
Device Description AMD High Definition Audio Device
Device Type Audio
Bus Type HDAUDIO
Device ID 1002-AA01
Subsystem ID 00AA-0100
Revision 1002
Hardware ID HDAUDIO\FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100& REV_1002

Field Value
Device Properties
Device Description ATI Redwood/Madison - High Definition Audio Controller
Device Description High Definition Audio Controller
Bus Type PCI
Bus / Device / Function 1 / 0 / 1
Device ID 1002-AA60
Subsystem ID 1025-0498
Revision 00
Hardware ID PCI\VEN_1002&DEV_AA60&SUBSYS_04981025&REV_00

I need too( I have only noise

Originally Posted by eutudb23

ALC272 Not Whorking (huh?) [I'm sure there's a full stop here...] help [an exclaimation here, maybe?] need good Kext [followed by a couple of ellipsis]

There's your problem right there. No, we're not asking for perfect English. But a token effort to make yourself comprehensible, that shouldn't be asking for too much, right?

Also, it's LOTS and LOTS. No need to add apostrophe on a plural word just because you saw it misused en mass on the internet.

Originally Posted by videospigot

There's your problem right there. No, we're not asking for perfect English. But a token effort to make yourself comprehensible, that shouldn't be asking for too much, right?

Also, it's LOTS and LOTS. No need to add apostrophe on a plural word just because you saw it misused en mass on the internet.

Sorry for my english but I was frustrated and in a hurry for an answer I'm romanian and I did forget some english since I don't have with who o speak so sorry for my english but my point is the same didn't manage to find an working kext for my audio device described above and alltough google is a big tool I didn't find an working one and again I found lot's of solution but I don't understand all of them and I asked for help but no one answered to the thread's,etc.
So thank you in advanced but you should come with an solution not with an correction to my thread(sorry again).

Deleted for noise reduction.

Originally Posted by videospigot

Seriously? God. Didn't I just reminded you twice? And another thing, are you using Windows? Do you even see dotted lines on every one of your typo being highlighted by the computer as you go? If you're not going waste a few seconds of your time to write properly, why should the internet respond to you with any degree of seriousness?

Again, for the last time: it's LOTS. Learn that, I implore you. It'll save you lots of keystrokes. And this BTW is your answer.

ALC272 kext - InsanelyMac Forum

I hope that solves it for you so we can finally lay this thread to rest.

[Also, English is not my first language either.]

Sorry,but still it's not working I tried it long time ago.
So if you have something better thank you.

[EDIT]
Although the VoodooHDA kext mentioned earlier worked upon installation, after much testing, I found that it gray-screens a little too much. So I tried out this other driver and it seems to work perfectly so far.

AppleHDA for ALC272 (Lion GM)

Originally Posted by videospigot

This one worked for me. Even got mic in. You can try it out.

VoodooHDA for ALC272 - Downloads - OSx86.net

I will try it thank you (but I had have given up any hope and I bought an usb audio and it works OOTB)
I will try when I will reinstall the system but for now ML DP2 works great with that usb audio....I will notify you when I will try the one from you and if it works

eutudb23, since you said you activated your 6550M with a 48xx kext (which is quite surprising considering 48xx is 2 generations apart from 6550M), I went and checked your posting history to see how you got it to work. From your posts I realized you started out with iAtkos L2, the distro any sane person would be using; because if you borked something, it's easy to reinstall and reinstall and reinstall. And any driver support can be researched and added on later, or if there is none, you can quickly ditch the 'puter and move on to another.

But not you. You took the path of the ninja. With a laptop ridden with uncertainties, you tossed out the iAtkos easy method, and went all out into the deep woods with the Tonymac vanilla install method*. [Insanity? Check!] And you're here claiming that an unsupported video card worked OOTB for you, only sound doesn't work?

Fairy godmother of Bullshit City. What treachery is this?

OK, let's spare ourselves the semantics, and look at the facts. Just do this. Look inside your ATI4800Controller.kext and find the Info.plist, and locate IOPCIMatch.

<key>IOPCIMatch</key>
<string>0x94401002 0x944a1002</string>

Here it says that the device IDs supported are 9440 and 944a. The code we want for 6550M is 68C1. Now, you'd think that 6550M being from the 6000 series, it should be found on ATI6000Controller? Wrong. Peeking inside that KEXT, all we get is:

<key>IOPCIMatch</key>
<string>0x67681002 0x67701002 0x67791002 0x67601002 0x67611002 0x67501002 0x67581002 0x67591002 0x67401002 0x67411002 0x67451002 0x67381002 0x67391002 0x67201002 0x67221002 0x67181002 0x67191002 0x68401002</string>

There is a 6840, close but no cigar.

Whereas if we popped inside the ATI5000Controller...

<key>IOPCIMatch</key>
<string>0x68981002 0x68991002 0x68E01002 0x68E11002 0x68D81002 0x68C01002 0x68C11002 0x68D91002 0x68B81002 0x68B01002 0x68B11002 0x68A01002 0x68A11002 </string>

Bingo. So instead of Duckweed, which you claim to use, but is really only supposed to work as frame buffer for HD68xx cards, we should be using Hoolock instead.

That's going by logic. But if Duckweed works for you, I doubt it has anything to do with Chameleon or Champlist, or the vanilla install or any of those things you said you did. It can only be chalked up to voodoo.

So all that being said, my iAtkos is working, but it won't sleep, not even the display (which I found out isn't related to the ATI KEXT). Also, switching to 800x600 rez (the 4:3 one, not stretched) would black out the screen. Other resolution modes are all working.


*No offense to Tony. I think it's great that the method works, especially for all you fans. But stupid me, I failed so hard at even getting the image file onto a blank disc. And question to all you fans: do you really need 2 discs, one to boot and the Lion installer to install? And how do you like the cartoon apple bootup menu? Is it changeable?

Originally Posted by videospigot

eutudb23, since you said you activated your 6550M with a 48xx kext (which is quite surprising considering 48xx is 2 generations apart from 6550M), I went and checked your posting history to see how you got it to work. From your posts I realized you started out with iAtkos L2, the distro any sane person would be using; because if you borked something, it's easy to reinstall and reinstall and reinstall. And any driver support can be researched and added on later, or if there is none, you can quickly ditch the 'puter and move on to another.

But not you. You took the path of the ninja. With a laptop ridden with uncertainties, you tossed out the iAtkos easy method, and went all out into the deep woods with the Tonymac vanilla install method*. [Insanity? Check!] And you're here claiming that an unsupported video card worked OOTB for you, only sound doesn't work?

Fairy godmother of Bullshit City. What treachery is this?

OK, let's spare ourselves the semantics, and look at the facts. Just do this. Look inside your ATI4800Controller.kext and find the Info.plist, and locate IOPCIMatch.

<key>IOPCIMatch</key>
<string>0x94401002 0x944a1002</string>

Here it says that the device IDs supported are 9440 and 944a. The code we want for 6550M is 68C1. Now, you'd think that 6550M being from the 6000 series, it should be found on ATI6000Controller? Wrong. Peeking inside that KEXT, all we get is:

<key>IOPCIMatch</key>
<string>0x67681002 0x67701002 0x67791002 0x67601002 0x67611002 0x67501002 0x67581002 0x67591002 0x67401002 0x67411002 0x67451002 0x67381002 0x67391002 0x67201002 0x67221002 0x67181002 0x67191002 0x68401002</string>

There is a 6840, close but no cigar.

Whereas if we popped inside the ATI5000Controller...

<key>IOPCIMatch</key>
<string>0x68981002 0x68991002 0x68E01002 0x68E11002 0x68D81002 0x68C01002 0x68C11002 0x68D91002 0x68B81002 0x68B01002 0x68B11002 0x68A01002 0x68A11002 </string>

Bingo. So instead of Duckweed, which you claim to use, but is really only supposed to work as frame buffer for HD68xx cards, we should be using Hoolock instead.

That's going by logic. But if Duckweed works for you, I doubt it has anything to do with Chameleon or Champlist, or the vanilla install or any of those things you said you did. It can only be chalked up to voodoo.

So all that being said, my iAtkos is working, but it won't sleep, not even the display (which I found out isn't related to the ATI KEXT). Also, switching to 800x600 rez (the 4:3 one, not stretched) would black out the screen. Other resolution modes are all working.


*No offense to Tony. I think it's great that the method works, especially for all you fans. But stupid me, I failed so hard at even getting the image file onto a blank disc. And question to all you fans: do you really need 2 discs, one to boot and the Lion installer to install? And how do you like the cartoon apple bootup menu? Is it changeable?

Sorry man this is no longer supported because I solved all problems by my self and all works with ML DP2 ML DP1 Lion 10.7-10.7.4
so I don't need to explain to you what I did how I did all should figure out by them self as I did
Sound works with usb audio
Video works with Chimera 1.8 but it has lot's of bugs(in boot plist you only have to enable GraphicsEnabler and it detects automatic)
Wi-Fi doesn't works because there isn't any actually solution for it(none from google work with change of or adding strings of PCi in the info.plist files etc)
Ethernet for me works with adding the BCM5722D.kext to the IONetworkingFamily.kext plugins directory
So if you are such a smart ass why on earth didn't you came with all these solution's and only come here to insult people
Sorry for my English and my comments but you are some selfish guy who doesn't help people you just get in they're way...
Bye Bye and thx for...nothing

PS all you need for boot and install is one 8 GB stick so learn and read more....if you fail does not mean that we all need to fail as you