Hervé

Added AzureWave AW-CB160H Combo Wifi ac/BT 4.1 1/2 mini-PCIe card. This card is fitted with smaller (1.5mm) MHF4/IPEX4 antenna connectors like NGFF cards.

CoreStorage is not enabled on your disk, so you obviously can't revert anything!

Clover will boot the "install macOS on ..." partition, not Enoch. This is due to CoreStorage as stated above by JakeLo, You have to revert partitions to legacy mode and -probably- rebuild your cache.

Really? Well, RTFM...

Pike R Alpha's script is used to generate the necessary CPU power management SSDT for your CPU. Without the generated table, you will not gain proper CPU SpeedStep and Turbo boost. May be you can tell us how you obtained, setup and ran the script. Pike's GitHub repo is properly documented in terms of script setup and execution so, one can't normally go wrong if instructions are followed to the letter... Re: USB ports, do you use the USB injector kext ? Do you have USB2.0 and USB3.0 onr only USB3.0. If they're all USB3.0, you may also need to install FakePCIID_XhCI_Mux to support USB2/USB3 multiplexing on your ports.

Don't confuse Ivy Bridge integrated graphics HD4000 with Haswell integrated graphics HD4400/4600/etc. Although some general principles apply to all generations of framebuffers (eg: framebuffers indexes, connector types), HD4000 stuff is irrelevant and not applicable to Haswell platforms. It's critical to understand that despite an apparent (but incorrect) link in terms of numbers (4 thousands), these are different generations of integrated graphics. JakeLo gave you a link to my Haswell graphics patching guide in post #2 and the guide clearly states limitations encountered from Sierra 10.12.3 and these are also stated in post #3. Not much I can add, I'm afraid... Something changed in the Azul framebuffer (or elsewhere) after early versions of Sierra and this no longer supports multiple displays with DVI output. HDMI and DP remain Ok though.

BCM4312 is one of those cards no longer supported; there is no workaround. It's not a matter of (re)branding, there are no drivers for those Brooadcom chips and older drivers do not work under Sierra.

Quite possible if you have an Alps v8 or similar.

https://osxlatitude.com/index.php?/topic/8285-refined-alps-touchpad-driver/

You could start here... https://osxlatitude.com/index.php?/forum/161-faqs-tutorials/ Regarding audio, try installing CodecCommander kext or EAPDFix (but not both at the same time). Re: Touchpad, not much we can do until you identify the model (e.g.: ALPS, Elan, Synaptics, I2C)

That does not support HDMI audio. It's best to stick with patched AppleHDA.

You can expect this E6420 to work 100% under Mavericks 10.9.5. You may consult this thread for details and for the bootpack which contains all necessary add-on kexts. SD card reader will work OOK once you apply the necessary DSDT patch detailed here. For keyboard, refer to this thread and this one. Broadcom BCM4313 chip is not supported and has to be replaced by a supported card. See here for details. You can also update your BIOS to the latest version A24.

Obviously, you do NOT install a patched kext from El Capitan in a High Sierra build. Apply the patches, as described, to the vanilla High Sierra Azul kext.

We're not going to be able to help unless you state your wireless card model... https://osxlatitude.com/index.php?/topic/2120-inventory-of-supported-and-unsupported-wireless-cards/ If you have a BCM431x of some sort, these were dropped in Sierra.

Fn-Insert / Fn-F3 will control brightness as macOS level.

Just took the old D620s out of retirement to verify behaviour and can 100% confirm the need for docking station/port replicator.

I believe I said you'd probably need a docking station/port replicator.

As stated in my above research thread, I've not been able to obtain dual/multiple displays on my Haswell/HD4600 Latitude E6440 (close cousin of the E7440) with my Dell E-Port docking stations/port replicators (PR02X/PR03X) since Sierra 10.12.3. It did work with earlier Sierra versions and still does under El Capitan / Yosemite / Mavericks. VGA is not normally supported under Haswell graphics but, since you have HD4400 built in your i5-4300u, you may find it works OOB directly off the laptop. Binary patch that fixes final stage boot glitch (what you call the "scattered apple") for High Sierra is well known and readily available... In: IOGraphicsFamily Find: 0100007522 Replace by: 010000EB22

If you want only the (VGA) external display, you have to close the lid, which means using an external keyboard and mouse (and probably a docking station/port replicator too - for the On/Off switch). Afaik, under OS X, you cannot turn the built-in LCD off on a laptop if the lid is opened.

https://osxlatitude.com/index.php?/forum/161-faqs-tutorials/

Other than the AppleHDA_IDT, you should not require any of those add-on kexts...

Why don't you try it? Afaik, the web driver can be removed if necessary.

The short graphics glitch (aka final or 2nd stage boot glitch) has been in existence for years now; it's just that, in High Sierra, the fix is different than it was in Sierra and El Capitan: In: IOGraphicsFamily Find: 0100007522 Replace by: 010000EB22 Just adjust your patch accordingly in Clover.

You're not following the documented process. Install ML as if it were a regular OS X installation. Only then will you apply MLPF.

Re: AR9485, please consult our inventory in the R&D->wireless & BT forum sub-section.