Dell XPS 12 (9Q33) OS X Mavericks Instillation

[RehabMan]

Picked up a BCM94352Z wireless adapter and installed. It is showing up as an Airport Extreme but shows no driver installed. I am attaching my dsdt and ioreg file. I am not able to select it as an interface to add a wireless network. Any help would be great!

View attachment 100904

Looks like you have DSDT patches to enable it with "compatible". I think it should work... Do you have vanilla (unmodified) IO80211Family/IONetworkingFamily installed?

Did you verify the card is working in Windows or Linux?

 

[donradii]

Looks like you have DSDT patches to enable it with "compatible". I think it should work... Do you have vanilla (unmodified) IO80211Family/IONetworkingFamily installed?

Did you verify the card is working in Windows or Linux?

I have a vanilla IO80211 installed. Windows 8 was giving me some problems with drivers. I will try a Linux test and see it it works there.

 

[RehabMan]

I have a vanilla IO80211 installed. Windows 8 was giving me some problems with drivers. I will try a Linux test and see it it works there.

And IONetworkingFamily.kext?

Also, check system.log. Repair permissions & rebuild cache can't hurt.

 

[donradii]

I have a vanilla IO80211 installed. Windows 8 was giving me some problems with drivers. I will try a Linux test and see it it works there.

Connects fine with Ubuntu 14 USB after installing the Broadcom 802.11 Linux STA drivers

 

[RehabMan]

Connects fine with Ubuntu 14 USB after installing the Broadcom 802.11 Linux STA drivers

Do a fresh install of OS X. See if that fixes your issue... Also see post #183.

 

[markmark2]

Post config.plist and/or entire EFI folder if you need help.

Thanks, I will.

All I've really tried to do so far is -v -x from the Boot Args in the Options menu.

Starts loading, gets to Loading drivers... Loads several lines of .... then +++++ before it freezes.

I haven't had too much time to play with it yet. I'll go back to the other thread you
posted and spend some more time looking at it later.

 

[ppgghhgg]

Thanks so much for trying to help. I tried your modified kext and DSDT, but booting still hangs after loading the bluetooth module. I have to remove the AppleHDA kext to boot successfully. Guess I will just live without audio.

BTW, what does it mean when your kext is identified with a purple dot next to the file name?

Now I found a solution may solve your audio problem:
First:
Add
IRQNoFlags ()
{0}
IRQNoFlags ()
{8}
to Device(HPET) in DSDT like that:

     Device (HPET)
                {
                    Name (_HID, EisaId ("PNP0103"))
                    Name (_UID, Zero)
                    Name (BUF0, ResourceTemplate ()
                    {
                        IRQNoFlags ()
                            {0}
                        IRQNoFlags ()
                            {8}
                        Memory32Fixed (ReadWrite,
                            0xFED00000,         // Address Base
                            0x00000400,         // Address Length
                            )
                    })
                    Method (_STA, 0, NotSerialized)
                    {
                        If (LGreaterEqual (OSYS, 0x07D1))
                        {
                            If (HPAE)
                            {
                                Return (0x0F)
                            }
                        }
                        Else
                        {
                            If (HPAE)
                            {
                                Return (0x0B)
                            }
                        }
                        Return (Zero)
                    }

Second:
Add alc275 definition to DSDT like that:

Device (HDEF)
        {
            Name (_ADR, 0x001B0000)
            Method (_DSM, 4, NotSerialized)
            {
                Store (Package (0x0C)
                    {
                        "built-in", 
                        Buffer (One)
                        {
                            0x00
                        }, 
                        "hda-gfx", 
                        Buffer (0x0A)
                        {
                            "onboard-1"
                        }, 
                        "codec-id", 
                        Buffer (0x04)
                        {
                            0x75, 0x02, 0xEC, 0x10
                        }, 
                        "device-type", 
                        Buffer (0x0F)
                        {
                            "Realtek ALC275"
                        }, 
                        "layout-id", 
                        Unicode ("V"), 
                        "PinConfigurations", 
                        Buffer (Zero) {}
                    }, Local0)
                DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                Return (Local0)
            }
            OperationRegion (HDAR, PCI_Config, 0x4C, 0x10)
            Field (HDAR, WordAcc, NoLock, Preserve)
            {
                DCKA,   1, 
                        Offset (0x01), 
                DCKM,   1, 
                    ,   6, 
                DCKS,   1, 
                        Offset (0x08), 
                    ,   15, 
                PMES,   1
            }

Third:
Delete the code below in DSDT:

Name (DRET, Buffer (0x04)
                {
                     0x00
                })
                If (LEqual (Arg0, Buffer (0x10)
                        {
                            /* 0000 */   0xE1, 0x75, 0x39, 0x6F, 0x82, 0x7A, 0x67, 0x4F,
                            /* 0008 */   0x8B, 0x97, 0x15, 0xBE, 0xE0, 0x60, 0xBE, 0xDF
                        }))
                {
                    If (LEqual (Arg2, Zero))
                    {
                        CreateWordField (DRET, Zero, F0SS)
                        Store (0x02, F0SS)
                        Return (DRET)
                    }
                    If (LEqual (Arg2, One))
                    {
                        If (LEqual (^^PEG0.PEGP.LNKV, 0x03))
                        {
                            Return (Zero)
                        }
                        Return (One)
                    }
                }
                Return (Zero)
            }

Forth:
Add AppleHDA.kext I patched into S/L/E and repair the permission.
Fifth:
The most important: add DTGP into DSDT on the top or at the last:

Method (DTGP, 5, NotSerialized)
    {
        If (LEqual (Arg0, Buffer (0x10)
                {
                    /* 0000 */    0xC6, 0xB7, 0xB5, 0xA0, 0x18, 0x13, 0x1C, 0x44, 
                    /* 0008 */    0xB0, 0xC9, 0xFE, 0x69, 0x5E, 0xAF, 0x94, 0x9B
                }))
        {
            If (LEqual (Arg1, One))
            {
                If (LEqual (Arg2, Zero))
                {
                    Store (Buffer (One)
                        {
                            0x03
                        }, Arg4)
                    Return (One)
                }
                If (LEqual (Arg2, One))
                {
                    Return (One)
                }
            }
        }
        Store (Buffer (One)
            {
                0x00
            }, Arg4)
        Return (Zero)
    }

Patched AppleHDA for alc275 in XPS12-9Q23：View attachment AppleHDA.kext 10.9.4 XPS12-9Q23 ALC275.zip
Here is my i7-3537U XPS12-9Q23 DSDT from BIOS A8 to be an example:
View attachment DSDT 2014.8.9 XPS12-9Q23 i7-3537U.zip

 

[RehabMan]

Just use patches from here: https://github.com/RehabMan/Laptop-DSDT-Patch

Apply:
"IRQ Fix"
"Audio Layout 12" (change layout-id to 86 [same as Unicode "V"])

DRET can likely remain. Although most of the time I see DRET inside the _DSM method (if present), in which case it gets deleted by the audio patch automatically (because it replaces the _DSM method).

 

[ppgghhgg]

Just use patches from here: https://github.com/RehabMan/Laptop-DSDT-Patch

Apply:
"IRQ Fix"
"Audio Layout 12" (change layout-id to 86 [same as Unicode "V"])

DRET can likely remain.

OH! I didn't know it before! Thanks a lot!

Excuse me. Could tell me the affect of DRET? I have a problem on it because if I remain it, the speaker of the second monitor (Mini-DP) and int speaker would have no sound, only the sound from earphone could be heard. I'm worring about that it would have some unknown problems after I delete it though now it seems no problems.

 

[RehabMan]

OH! I didn't know it before! Thanks a lot!

Excuse me. Could tell me the affect of DRET? I have a problem on it because if I remain it, the speaker of the second monitor (Mini-DP) and int speaker would have no sound, only the sound from earphone could be heard. I'm worring about that it would have some unknown problems after I delete it though now it seems no problems.

I'm very surprised that DRET would make any difference...