Jake Lo

Off topic, but Windows Key is now embedded in the system board. Use RWEverthing to find the key.

Thanks for the info regarding HDMI, I'll give that a try.

Update:

Switching ig-platform-id to 0x16260006 enables both HDMI and DP, hot plug without any issue.

Trying to enable HDMI Audio now. After patching B0D3 to HDAU in DSDT, system KP. 

Yes, got wireless and bluetooth working with these kexts:

FakePCIID_BCM94352Z_as_BCM94360CS2

FakePCIID

BTFirmwareUploader

Have not try Hand-off and Hotspot as I don't own an iPhone.

Yes, FileVault 2 is a good option but I have not use it personally as  I don't store anything personal. I constantly wiping and reinstalling.

New update:

Joe82 helped me patched AppleHDA for ALC293, work perfectly except still need to test the sleep/wake issue with EAPD. Last thing would be HDMI video, can't test HDMI audio until that's figured out.

No issue updating to 10.10.4

Rename the file to DSDT.aml and move it to /Extra replacing the original.

Try adding this to clover, kextToPatch

<dict>
<key>Comment</key>
<string>HDMI-Video/Audio for HD4400/HD4600</string>
<key>Find</key>
<data>
AQUJAAAEAACHAAAA
</data>
<key>Name</key>
<string>AppleIntelFramebufferAzul</string>
<key>Replace</key>
<data>
AQUSAAAIAACHAAAA
</data>
</dict>

if that doesn't work, then try this

<dict>
<key>Comment</key>
<string>HDMI-Video/Audio for HD4400/HD4600</string>
<key>Find</key>
<data>
AgQJAAAEAACHAAAA
</data>
<key>Name</key>
<string>AppleIntelFramebufferAzul</string>
<key>Replace</key>
<data>
AgQSAAAIAACHAAAA
</data>
</dict>

additional patching might be require for audio, but this should get you HDMI video capability.

See here. Use a different method to install Yosemite found all around this forum. Use the search option. MyHack does not fully support Yosemite at this moment.

Did you see Pepto's guide?

Can be adjusted to install Mavericks or Yosemite.

My mistake, I'm using Legacy, UEFI won't even let me select cloverx64.efi, it'll just hang. You should be able to dual boot with Legacy mode though.

What do you have in your Bios settings currently and what option did you use for Clover?

Yes, set it in the BIOS.

Did you try UEFI with legacy?

On Clover config, remove "New Way", that should get the battery status working. Upload your config/DSDT if you're still having issue.

Try kexts from my E7440 guide.

Can you confirm you have Cypress touchpad and not Alps? Alps is included in my bootpack.

The patched AppleHDA by Joe82 for ALC292 should work too but will require EADPfix to fix wake from sleep issue.

O2 Micro card reader can be fix with a DSDT patch which was added from DSDT I patched for you but perhaps on the wrong location. Will have to see your IORegistry to determine that. 

Brightness control is through Fn+F3 (ScrollLock) and Fn+Insert (Pause)

Here you go...if you need help installing Yosemite, let us know, but it looks like it need USB3 kext to boot. Temporarily use GenericUSBXHCI to get the installer going.

cheers

DSDT.aml.zip

Can you post a screenshot of Ethernet Cards under System Reports?

Can you send an unpatched DSDT?

Even better if you could follow the linux dump from here. You could use Ubuntu too.

Attach all the files DSDT/SSDT/etc...

Also list the system's specs. Use DPCIManager and get snapshot of PCI list.

That works on a Realtek RTL8151 PCI-E?

Are you sure it's not for your wireless card?

Ran the process through an E7250 and E7450 with BIOS A03 and A04, all with the same location and value. I think it's safe for you to just create the USB disk with the EFI boot file and set the value.

Next thing to do is to get HDMI to work.

I assumed that DVMT was set to 96MB (0x3)since Windows show 64MB of Dedicated Video Memory as per FireWolf’s guide. Well, that’s not the case for this system. I found out that it’s set to 0x1 which is 32MB. After setting it to 0x3, system booted successfully with full QE/CI without having to patch the FB binary file to pass the Stolen Memory assertion.

http://www.osxlatitude.com/tuning-performance-with-fakesmc-smbios-plist/

are you on Clover or Chameleon?

Chameleon, you'll need AppleIntelCPUPowerManagement patched. Clover has it patched on the fly.

Make sure you don't have NullCPUPowerManagerment installed.

Install DisableTurboBoostBattery.kext

Tuned your system - see article by Hervé.

Install SSDT for your CPU

Start reading from this post, resolved for the same model.

or

Try this by Mirone. Just run  Patched_IntelHD4400_v2.sh. 

Search for this in the DSDT.aml with MaciASL.app

                  Return (Package (0x0A)                
                  {
                    "device-id", 
                    Buffer (0x04)
                    {
                         0x12, 0x04, 0x00, 0x00                         
                    }, 


                    "AAPL,ig-platform-id", 
                    Buffer (0x04)
                    {
                         0x06, 0x00, 0x26, 0x0A                         
                    }, 


                    "hda-gfx", 
                    Buffer (0x0A)
                    {
                        "onboard-1"
                    }, 


                    "model", 
                    Buffer (0x0E)
                    {
                        "Intel HD 4400"
                    }, 


                    "AAPL00,DualLink", 
                    Buffer (0x04)
                    {
                         0x01, 0x00, 0x00, 0x00                         
                    }
                })

                Return (Package (0x06)
                {
                    
                    "AAPL,ig-platform-id", 
                    Buffer (0x04)
                    {
                         0x06, 0x00, 0x26, 0x0A                         
                    }, 

                    "hda-gfx", 
                    Buffer (0x0A)
                    {
                        "onboard-1"
                    }, 

                    "model", 
                    Buffer (0x0E)
                    {
                        "Intel HD 4400"
                    }, 
                })

cazy,

Thank you for your contribution. It never occurred to me to use both kexts that do the same thing. So far it's working well on Yosemite 10.10.3.

Not a problem connecting or disconnecting headphones or after sleep. I installed both to /S/L/E because I'm still using Chameleon loader.

I have another setup with Clover, but it's at the office, so will test that as well later. Patched AppleHDA ALC292 is in my bootpack for E7440 curtesy of Joe82. Attached are the kexts used if anyone wants to experiment too.

Credits to Dolner/Rehabman/theDarkVoid for the latest CodecCommander and EmlyDinesh for EAPDFix.

Cheers.

Update:

After some testing, found some issue if system is put to sleep with HP plugged in. Works pretty consistent if HP is not plug in before sleep or during wakeup. 

cazy, are you seeing the same issue? If not, then can you provide the version of the kexts you're using?

Update2:

I think I found the best combo. Updated attachment with CodecCommander originally patched by theDarkVoid to fix some widget issue

Audio_Fix_ALC292.zip

Make sure to use USB port on the left or ESATA/USB combo and maybe external usb keyboard and mouse.

I believe this has the nvidia card too...

check out Hervé's guide.