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[SOLVED] E6420 no sound since 10.11.5


barnum

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You need to remove voodooHDA and AppleHDADisabler. Also make sure layout-id in DSDT under HDEF is set to 12 (hex 0x0C)

In addition to that you'll need the hot patches added to the Clover Config.plist file.

See my bootpack for the files if you don't have them.

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Thanks - just working through those now, could you confirm :-

 

 

Method (_DSM, 4, NotSerialized)

                {
                    If (LEqual (Arg2, Zero))
                    {
                        Return (Buffer (One)
                        {
                            0x03
                        })
                    }
 
                    Return (Package (0x06)
                    {
                        "layout-id", 
                        Buffer (0x04)
                        {
                            0x0C, 0x00, 0x00, 0x00
                        }, 
 
                        "hda-gfx", 
                        Buffer (0x0A)
                        {
                            "onboard-1"
                        }, 
 
                        "PinConfigurations", 
                        Buffer (Zero) {}
                    })
                }
            }
 

 

I need to update this part :-

 

                    Return (Package (0x06)

                    {
                        "layout-id", 
                        Buffer (0x04)
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No, it's already set to the correct ID

                   Return (Package (0x06)

                    {
                        "layout-id", 
                        Buffer (0x04)
                        {
                            0x0C, 0x00, 0x00, 0x00
                        }, 
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Actually your patches are for AppleHDA and not VoodooHDA. Only thing is you're missing a extra patch for 10.11.x. Add this

 

Name                  find*                              replace*                           Comment                                                          Type

AppleHDA           8319D411                    00000000                        Additional AppleHDA patch for ElCapitan         STRING

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Thanks Jake Lo!!  The sound is working again now.

 

The only one thing is that if I leave the volume at half level.  When I reboot the slider appears to be at full level.

 

However if I play some music it will play at half level volume, but when I press the volume key once the slider will jump up to max (as thats where the slider bar thinks it is I guess).

 

Quite difficult to explain, and only a minor annoyance but good if there is a fix.

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