Hervé

BIOS: F.38 CPU: Intel Skylake QuadCore i7-6700HQ @2.6GHz Chipset: Series 100/C230 RAM: 8GB Graphics: Intel HD530 + nVidia GeForce GTX 960M Audio: ? LAN: Realtek RTL8168 GigEthernet Wireless: Intel AC-7265 Card Reader: Realtek 522A (PCIe) USB: 3.0 Touchpad: Synaptics Intel wireless is unsupported. It'll have to be replace by something compatible, whether through an internal card or a USB dongle. https://osxlatitude.com/index.php?/topic/8696-is-my-wireless-card-compatible-with-os-x/ For the rest, you should be Ok: RTL8168 GigEthernet: https://github.com/RehabMan/OS-X-Realtek-Network or http://www.insanelymac.com/forum/topic/287161-new-driver-for-realtek-rtl8111 Audio: you'll have to install VoodooHDA + AppleHDADisabler kexts then run DPCIManager app to identify the audio codec. Only then may you remove those 2 x kexts and apply the eventual AppleHDA patch. TouchPad: see https://osxlatitude.com/index.php?/topic/1948-elan-focaltech-and-synaptics-smart-touchpad-driver-mac-os-x/ Card reader: should work with Sinetek's early driver according to http://www.insanelymac.com/forum/topic/321080-sineteks-driver-for-realtek-rtsx-sdhc-card-readers/page-1. You would apparently need to install the kext in /S/L/E. A newer version still is in progress. Failing that, look for a recent version of VoodooSDHC kext, if that exists: https://www.hackintosh-forum.de/index.php/Thread/28992-VoodooSDHC-ist-zurück/

Always better to install add-on kexts to /L/E rather than /S/L/E; helps keep track of the kexts and the folder is ignored if you boot without cache (very useful when you tests kexts through injection rather than caching). Only install kexts to /S/L/E if absolutely necessary (like patched AppleHDA for instance).

So same AppleHDA patch as detailed in the E6230 Sierra guide then: DSDT HDEF patch for layout 12 IDT dummy kext AppleHDA patch (Clover on-the-fly or direct binary mod)

Let's say that I've had issues booting HighSierra USB installer set with GUID scheme, not when they were set with MBR scheme.

It's stated in Dr Hurt's thread that you need to replace the TrackPad panel by an older version (Maverick's I think). The file is in the thread.

Finger tapping is something you configure in the Trackpad preference panel...

As explained here, it's not a very good card re: compatibility with Apple's OS. You should have opted for another model. If you want 802.11ac wireless speed, opt for DW1550 or AW-CE123H. If you're happy with 802.11n services, there are plenty to choose from in that inventory... You may also want to consider a real Apple card like the BCM94360CD with an adapter. These work OOB and for all services (wifi, BT, handoff, airdrop). https://osxlatitude.com/index.php?/topic/7554-apple-broadcom-bcm4360cd-80211-ac-wifi-and-bluetooth-combo-card/

Codec id 10EC:0668 is indeed Realtek ALC668.

No issues using the keyboard with one hand whilst moving the mouse with the other on all my Latitude E series with Dr Hurt's Alps driver. But I don't fully understand what you're trying to do!

Easy on the quoting (it really isn't necessary!)... Just how do you install the kext? Describe all steps.

Grab the Alps PS2 kext from the pack of my E6220 Sierra guide here, then report back.

I had assumed Kjescha did read the guide and added all required modules as per the instructions...

How did you arrive to this? Try and temporarily install VoodooHDA (+ AppleHDADisabler) then run DPCIManager again. That should list the detected codec. Your CPU is an i7-4510U @2.00GHz (Turbo to 3.10GHz), right? NB: Since you appear to have a HiRes screen, please only post the useful part of screenshots, not the entire maximized windows where most of them is blank. Contents is then hardly readable, I've had to retouch them. Or reduce windows size to their minimum required... Merci!

Then your E6230 is not tuned properly. Post your entire zipped EFI folder or list & post the zipped set of kexts you might have installed to /L/E or /S/L/E. Audio requires the same AppleHDA patch as usual: DSDT layout injection 12 in HDEF device (you should already have that) IDT 92HD93 dummy kext installation in /L/E (you probably missed that) AppleHDA binary patch (same patch as for Sierra -> see my Enoch Sierra guide for details)

Did you format the USB installer MBR? I'd recommend that. You should then be able to see the "macOS Install from ..." disk partition in the Clover list once the bootloader has loaded.

According to the documentation available on Dell's web site, it's indeed an Alps Touchpad.

Updated for High Sierra.

There is no support whatsoever for this older graphics chip under MacOS X/OS X/macOS. https://osxlatitude.com/index.php?/topic/8238-unsupported-gpu-graphics-cards/

It seems you need to do some important reading & learning about AppleHDA patching and patching in general because you've walked past some essential stuff. AppleHDA patching consists of binary patching the kext's binary file (i.e. its code). Dummy kexts are for XML files injection (for Platforms and Layouts info). I suggest you start at p1 of this thread (introduction, then chapter 3) where Dinesh explained everything in great details. And, since you may have missed that too, that's what Clover's on-the-fly patches do through the kext cache by far and large: binary mods. Info.plist files are plain text and generally (but not always) define ids of applicable hardware or driver's operational parameters, so to speak. I'm getting off-topic but I really recommend your read stuff like these: https://developer.apple.com/library/content/documentation/Darwin/Conceptual/KEXTConcept/KEXTConceptAnatomy/kext_anatomy.html https://developer.apple.com/library/content/documentation/Darwin/Conceptual/KernelProgramming/Extend/Extend.html

Imo, patching AppleHDA would be the best way to proceed with IDT 92HD71b7. Patch for Sierra/High Sierra should take the regular form, i.e. : Find: 8419D411 Replace: 00000000 Find: 8A19D411 Replace: 00000000 Find: 8B19D411 Replace: B2761D11 2 x instances each time in case of manual binary mod. As usual, patched AppleHDA will require the relevant IDT 92HD71b7 dummy kext + DSDT layout-id injection to work. These are normally derived from codec dump. See p1 of the thread...

Device IDT 92HD71B7 means you have an IDT codec with id 76b2. It's IDT not Broadcom. You can find details of the AppleHDA patch for this codec, it already exists... VoodooHDA cannot operate without the AppleHDA disabler; that's the whole nature of VoodooHDA...

Maybe inadequate CPU power management?

Only with both hands. Doing it single-handedly requires some serious level of dexterity!

Old Dell DW3x0 modules were based on CSR chips and worked OOB without the options to turn them on and/or off through the BT icon in the Firnder's bar. Once their ids are added to the CSR transport kext, these options become available... You could try the same, there aren't that many transport PlugIn kext that apply here. Another example with the Intel combo wireless/Bluetooth card in my Latitude E6440. No support for the wireless but the BT module is supported OOB with the generic kexts. There are options to turn it on and off: