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can't get ALC 270 to work on hm76 system

chriz74

By chriz74,
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chriz74
chriz74
Posted
Posted

Hello. I tried everything.

I patched my kext using this data

 

Verbs from Linux Codec Dump File: codec_dump.txt
 
Codec: Realtek ALC270   Address: 0   DevID: 283902576 (0x10ec0270)
 
   Jack   Color  Description                  Node     PinDefault             Original Verbs
--------------------------------------------------------------------------------------------------------
    1/8   Black  Speaker at Ext Rear         18 0x12   0x411111f0   01271cf0 01271d11 01271e11 01271f41
 Speaker at Int N/A    0x14 0x14                        2417426704 01471c10 01471d01     01471e17 01471f90  
    1/8   Black  Speaker at Ext Rear         23 0x17   0x411111f0   01771cf0 01771d11 01771e11 01771f41
    1/8   Black  Speaker at Ext Rear         24 0x18   0x411111f0   01871cf0 01871d11 01871e11 01871f41
 Mic at Int N/A    0x19 0x19                        2426865968 01971c30 01971d09     01971ea7 01971f90  
 HP Out at Ext Left    0x1a 0x1a                        52499488 01a71c20 01a71d14     01a71e21 01a71f03  
    1/8   Black  Speaker at Ext Rear         27 0x1b   0x411111f0   01b71cf0 01b71d11 01b71e11 01b71f41
Digital  Purple  Line Out at Ext N/A         29 0x1d   0x4006852d   01d71c2d 01d71d85 01d71e06 01d71f40
    1/8   Black  Speaker at Ext Rear         30 0x1e   0x411111f0   01e71cf0 01e71d11 01e71e11 01e71f41
    1/8   Black  Speaker at Ext Rear         33 0x21   0x411111f0   02171cf0 02171d11 02171e11 02171f41
--------------------------------------------------------------------------------------------------------
 
 
   Jack   Color  Description                  Node     PinDefault             Modified Verbs
--------------------------------------------------------------------------------------------------------
 Speaker at Int N/A    0x14 0x14                        2417426704 01471c10 01471d00     01471e17 01471f90  
 Mic at Int N/A    0x19 0x19                        2426865968 01971c30 01971d00     01971ea7 01971f90  
 HP Out at Ext Left    0x1a 0x1a                        52499488 01a71c20 01a71d10     01a71e21 01a71f00  
Digital  Purple  Line Out at Ext N/A         29 0x1d   0x4006852d   01d71c40 01d71d80 01d71e06 01d71f40

 

--------------------------------------------------------------------------------------------------------
 
so I suppose these are the verbs to add:
 
01471C10 01471D00 01471E17 01471F90 01971C30 01971D00 01971EA7 01971F90 01A71C20 01A71D10 01A71E21 01A71F00 01D71C40 01D71D80 01D71E06 01D71F40
 
the nodes are as in this file AppleHDA-269.25-ALC270_v2.zip
 
9 - 34 - 18 (described as "speaker at ext rear Stereo IN")
 
20 - 13 - 3 (described as "speaker at int N/A Stereo OUT EAPD detect")
 
33 - 12 - 2 (described as "speaker at ext rear Stereo OUT HP detect")
 
So I put those verbs in the info.plist of AppleHDAHardwareConfigDriver.kext.
The nodes are already correct in the linked kext ( I think).
I added the DSM method in HDEF of DSDT (layout 3)
installed the kext, restarted. Nothing happens.
Sometimes I don't know for what magic as I tried several times with verbs and stuff dpcimanager found these devices (look picture) but still no audio.
The windows driver tells I have ALC 277, linux found ALC270.
Can anyone help? Everything else is working now apart wifi. Thanks
 
 
post-76108-0-98707200-1424796906_thumb.png

codec_dump_dec.txt

chriz74
chriz74
Posted
  • Author
Posted

Have you completed the binary patching??

 

what do you mean? 

I followed this guide: 

http://www.insanelymac.com/forum/topic/295001-guide-to-patch-applehda-for-your-codec/

 

 

edit.

 

you mean patch the binary? since that didn't work in yosemite I modified this one:

 

AppleHDA-269.25-ALC270_v2.zip

 

Which to my understanding is already binary patched.

chriz74
chriz74
Posted
  • Author
Posted

Manualy try to load the AppleHDA.kext and check in system.log for errors while loading the kext.

 

there are no errors, kext is loaded

 

110    0 0xffffff7f82050000 0xab000    0xab000    com.apple.driver.AppleHDA (269.25) <109 85 71 70 69 68 6 5 4 3 1>

Jithin Chandran
Jithin Chandran
Posted
Posted

If the kext is loading without any problem, then issue might be with your config data/layout injection in DSDT. Check it once again. Also better you post this query on the thread which you had followed for patching.

chriz74
chriz74
Posted
  • Author
Posted

I am using the DSDT method. The layout is correct there. I really don't know what else could be.

Method (_DSM, 4, NotSerialized)
                {
                    Store (Package (0x0c)
                    {                        
                        "built-in", 
                        Buffer (One)
                        {
                            0x00
                        }, 
                        "layout-id", 
                        Buffer (0x04)
                        {
                            0x03, 0x00, 0x00, 0x00
                        }, 
                       "PinConfigurations", 
                       Buffer (0x00)
                       {
                           0x00
                       }
                    }, Local0)
                    DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                    Return (Local0)
                }
RehabMan
RehabMan
Posted
Posted

I am using the DSDT method. The layout is correct there. I really don't know what else could be.

Method (_DSM, 4, NotSerialized)
                {
                    Store (Package (0x0c)
                    {                        
                        "built-in", 
                        Buffer (One)
                        {
                            0x00
                        }, 
                        "layout-id", 
                        Buffer (0x04)
                        {
                            0x03, 0x00, 0x00, 0x00
                        }, 
                       "PinConfigurations", 
                       Buffer (0x00)
                       {
                           0x00
                       }
                    }, Local0)
                    DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                    Return (Local0)
                }

 

The patch is not valid. The _DSM is returning a package of size 12, with only 6 entries. It will be ignored by OS X.

RehabMan
RehabMan
Posted
Posted

Hello, you mean the DSDT patch? That came with the kext (in the link). So how should I modify it?

Package size is clearly 6, not 12.

 

Method (_DSM, 4, NotSerialized)
                {
                    Store (Package (6)
                    {                        
                        "built-in", 
                        Buffer (One)
                        {
                            0x00
                        }, 
                        "layout-id", 
                        Buffer (0x04)
                        {
                            0x03, 0x00, 0x00, 0x00
                        }, 
                       "PinConfigurations", 
                       Buffer (0x00)
                       {
                           0x00
                       }
                    }, Local0)
                    DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                    Return (Local0)
                }
RehabMan
RehabMan
Posted
Posted

I used Store (Package (0x06). Still no audio but id 3 is recognized in system report, (before was 0).

Did you verify your patched AppleHDA.kext uses layout-id=3. You have to look inside the Info.plist for AppleHDAHardwareConfigDriver.kext (in PlugIns). Also, did you patch DSDT with "IRQ Fix"?

 

Note: 6 and 0x06 are the same thing. Both the number six.

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