Jake Lo

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. Here’s what you need to change the DVMT value (Done on Windows or WinPE) 1) Universal BIOS Backup ToolKit 2.0.exe - to backup the BIOS (DellInc.-A05.rom) 2) UEFITool.exe to find the module labeled SetupPrep (not Setup as per FireWolf’s guide) and extract the PE32 image section (setup.bin) 3) Universal IFR Extractor.exe to extract setup.bin to a readable text file 4) Use notepad to search for “DVMT” in the text file, 2 were found at 0x15b and 0x15c Both with value of 0x1 and need to be set to 0x3 5) Format a USB drive to fat32 and create a folder name EFI 6) Download the EFI Shell and extract the Boot folder to EFI folder 7) Boot system with the USB and select UEFI Boot 8) At the grub prompt, enter these commands, hit enter after each command, then exit and reboot setup_var 0x15b 0x3 setup_var 0x15c 0x3 To verify, just enter setup_var 0x15b and hit enter, the value will be listed All the tools are found in FireWolf's guide except Universal BIOS Backup Toolkit. Although you now have full QE/CI fixed, 10.10.3 will still randomly freezes. I'm running 10.11 beta now and seems to have resolved the freeze issue. Perhaps 10.10.4 will fix the issue too when it's out or just wait for 10.11 release.

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 } }) replace with this 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.

Shouldn't be a problem, very similar to Yosemite update. Although there will be some USB issue.

So you were able to reinstall but won't boot afterwards?

Know issue with this card as noted by Hervé, with voodoohda, built-in speakers only.

Remove SSDT.aml. Not for your CPU Try also booting with the USB Installer and restore the vanilla FB to the Installed drive.

Do you have the correct version of the patched Kernel replaced on the Installed drive? Attach a screenshot, it would be more informative.

Boot with -x -v -f Once log in, then you could try fixing the graphics issue.