jones333333 Posted November 1, 2017 Share Posted November 1, 2017 Hello to everyone, First, sorry for my English I speak french I really need your help and your expertise in order get High Sierra functionning on this laptop. The specs: DELL XPS 12-9Q33 Intel Core i7-4510 (Haswell) Intel HD 4400 During the 2 past weeks, I tried to get this laptop running with proper power management and graphics with Clover. I have to admit that I am a little bit confused for now as I tried to follow several tutorial about patching DSDT etc... but I think that I am a little lost with this one. Could somedy help me this please. In attach, the EFI folder that I used to be able to boot and install from USB. High Sierra is installed for now but without any power management and a lot of glitches in the graphics. I know, my EFI folder is a real mess... Thanks in advance for your help, you really are my last hope. EFI.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 1, 2017 Moderators Share Posted November 1, 2017 Replace Config. This should at minimum get your full graphics acceleration. Post screenshots of Status and PCI List with DPCIManager https://sourceforge.net/projects/dpcimanager/ and Launch IOReg IORegistryExplorer_v2.1.zip Save and attached all here for review I saw you had exported the raw DSDT/SSDT. I'll try to patch for you once I have the info above. What version of BIOS are you on? config.plist.zip Link to comment Share on other sites More sharing options...
jones333333 Posted November 1, 2017 Author Share Posted November 1, 2017 Jake Lo! Thanks a lot man! I used your config.plist and indeed I got full graphics acceleration now! You are a Genius! Bios is A07 Indeed I already exported the raw DSDT/SSDT following Rehabman's guide but after that i was geting nowhere... Here the info that you asked MacBook Air de mJones.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 1, 2017 Moderators Share Posted November 1, 2017 Looks like it doesn't have built-in ethernet Not sure what audio CodecID it has either...do you know what it is? I see in you attach you have a patched AppleHDA for ALC275, is that the correct CodecID? Does system has HDMI and DisplayPort or both? Link to comment Share on other sites More sharing options...
jones333333 Posted November 1, 2017 Author Share Posted November 1, 2017 audio is Realtek Audio ALC3260 system doesn't have built in ethernet but i am using an ethernet to usb adapter for now (it's working), I will need to replace the Wifi card (intel - not supported) Dispay port but no HDMI output Link to comment Share on other sites More sharing options...
jones333333 Posted November 1, 2017 Author Share Posted November 1, 2017 Really i couldn’t say anymore...I am pretty confused by this installation to be honest. I was unable to find a proper tutorial for this laptop and I am really desesparate. I really hope you could help me because you are really the expert regarding Dell laptops Link to comment Share on other sites More sharing options...
jones333333 Posted November 1, 2017 Author Share Posted November 1, 2017 It seems that it's a Realtek ALC668 running in my XPS Link to comment Share on other sites More sharing options...
Administrators Hervé Posted November 1, 2017 Administrators Share Posted November 1, 2017 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! Link to comment Share on other sites More sharing options...
jones333333 Posted November 1, 2017 Author Share Posted November 1, 2017 Hervé, Thanks for your help and my apologies for the high res screenshots. Here the info that I get from DPCIManager after installing VoodooHDA and the AppleHDADisabler Also you are right about the CPU, it's an i7-4510U @2.00GHz (Turbo to 3.10GHz). For now the the display of the laptop can't wake from sleep, I assume this is normal as I still need to fix the power management. Also I am unable to change the level of brightness (slide doesn't appears in the display settings). Thanks in advance for your precious help. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted November 1, 2017 Moderators Share Posted November 1, 2017 Ok, remove VoodooHDA + AppleHDADisabler Replace the attached contents into /EFI/Clover Copy kexts in /EFI/Clover/kexts/Other/LE to /Library/Extensions Repair permission and rebuild cache sudo chmod -Rf 755 /L*/E* sudo chown -Rf 0:0 /L*/E* sudo touch -f /L*/E* sudo chmod -Rf 755 /S*/L*/E* sudo chown -Rf 0:0 /S*/L*/E* sudo touch -f /S*/L*/E* sudo kextcache -Boot -U / XPS_12.zip Link to comment Share on other sites More sharing options...
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