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[Guide] Lenovo Yoga 2 Pro El Capitan using Clover UEFI

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did you create an Ubuntu USB flash drive? should just have to hit F12 at boot, and select your USB drive
 
cfb44 said:
did you create an Ubuntu USB flash drive? should just have to hit F12 at boot, and select your USB drive
Click to expand...

I created the the USB boot drive with Pen Drive, UNetbootin, Rufus, Etcher
I can see the desktop for half a sec then it goes to a black screen. If I close the lid and press the power button, the same half a sec comes up and black again.

It seems Ubuntu booted but I just can't see it on 14.04

What exact steps did you guys do?
Is it a bios version problem?
USB 3.0 or 2.0 drive problem?

Update: 1
- I found an old USB 2.0 flash, Ubuntu 14.04.5 boots, ghex downloaded and I get
- "You have No Permissions to Edit the File"
- So I used the same method I made the 14.04.5 to create a 14.04 and as above. Black screen.
- I am trying to create the USB again with Etcher.
- Etcher doesn't work too
- Downloading 14.04.2 now
- Downgrade bios to https://download.lenovo.com/consumer/mobiles/76cn38ww.exe and 14.04.5 still has No Permissions to Edit the File
- 14.04.2 doesn't have WIFI after boot
- Downloading 14.04.1 and .3 now, because WHY NOT, only been 10 hours
- 14.04.1 Black screen
- Chattr -i doesn't work, efivars mounted read-write doesn't work
- It does seems the new version cannot edit anymore.

I will try 14.04.3 if it doesn't work, then it's time to give up.
 
Last edited:
Hi !

I've made a fresh install of macOS 10.12.4 and managed to get backlight implementation with this guide : https://www.tonymacx86.com/threads/...rol-using-applebacklightinjector-kext.218222/

Since 10.12.4, backlight implementation must be set up with this new procedure. It has worked fine for me, however there is still a problem :
- As it is explained in RehabMan's guide : "If you already have patched your DSDT (or SSDT) with a "Brightness" patch (PNLF), you must remove it!"
- So I've patched again my SSDT7, without the "Brightness Fix (Haswell/Broadwell)" mentioned here
- However, if you read the content of this patch in MaciASL : "This patch enables the brightness slider in SysPrefs->Displays and will also enable activation of sleep mode by closing the laptop lid."
- Indeed, closing the laptop lid does not trigger sleep mode anymore. It will only turn off the screen but won't get to sleep mode, and I can't get it back on without rebooting.

Any idea on how to get backlight implementation and keeping the expected behavior of the lid at the same time ?
 
lcarroue said:
Hi !

I've made a fresh install of macOS 10.12.4 and managed to get backlight implementation with this guide : https://www.tonymacx86.com/threads/...rol-using-applebacklightinjector-kext.218222/

Since 10.12.4, backlight implementation must be set up with this new procedure. It has worked fine for me, however there is still a problem :
- As it is explained in RehabMan's guide : "If you already have patched your DSDT (or SSDT) with a "Brightness" patch (PNLF), you must remove it!"
- So I've patched again my SSDT7, without the "Brightness Fix (Haswell/Broadwell)" mentioned here
- However, if you read the content of this patch in MaciASL : "This patch enables the brightness slider in SysPrefs->Displays and will also enable activation of sleep mode by closing the laptop lid."
- Indeed, closing the laptop lid does not trigger sleep mode anymore. It will only turn off the screen but won't get to sleep mode, and I can't get it back on without rebooting.

Any idea on how to get backlight implementation and keeping the expected behavior of the lid at the same time ?
Click to expand...

LID triggered sleep is enabled by SSDT-PNLF.aml.
Keep in mind that assertions must clear (check with 'pmset -g assertions').
Also keep in mind 15-20 sec delay for any sleep, as per Apple design.

Read FAQ, "Problem Reporting"
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
 
RehabMan said:
LID triggered sleep is enabled by SSDT-PNLF.aml.
Keep in mind that assertions must clear (check with 'pmset -g assertions').
Also keep in mind 15-20 sec delay for any sleep, as per Apple design.

Read FAQ, "Problem Reporting"
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Click to expand...
Here's the output of 'pmset -g assertions' :
2017-04-03 11:54:41 +0200
Assertion status system-wide:
BackgroundTask 0
ApplePushServiceTask 0
UserIsActive 1
PreventUserIdleDisplaySleep 0
PreventSystemSleep 0
ExternalMedia 0
PreventUserIdleSystemSleep 0
NetworkClientActive 0
Listed by owning process:
pid 99(hidd): [0x000000170009803e] 00:13:03 UserIsActive named: "com.apple.iohideventsystem.queue.tickle.4294967940.3"
Timeout will fire in 296 secs Action=TimeoutActionRelease
Kernel Assertions: 0x4=USB
id=500 level=255 0x4=USB mod=01/01/1970 01:00 description=com.apple.usb.externaldevice.1d100000 owner=IOUSBHostDevice
Idle sleep preventers: IODisplayWrangler

- Even after 20 seconds, closing the lid does not trigger sleep mode, it only turns the screen off, with no way of turning it back on when I reopen the lid
- 'Apple menu -> Sleep' works as expected, and the laptop automatically goes to sleep mode after 5 minutes of inactivity (set in System Settings)

Please find the requested files attached.
Thanks in advance !
 

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lcarroue said:
Here's the output of 'pmset -g assertions' :
2017-04-03 11:54:41 +0200
Assertion status system-wide:
BackgroundTask 0
ApplePushServiceTask 0
UserIsActive 1
PreventUserIdleDisplaySleep 0
PreventSystemSleep 0
ExternalMedia 0
PreventUserIdleSystemSleep 0
NetworkClientActive 0
Listed by owning process:
pid 99(hidd): [0x000000170009803e] 00:13:03 UserIsActive named: "com.apple.iohideventsystem.queue.tickle.4294967940.3"
Timeout will fire in 296 secs Action=TimeoutActionRelease
Kernel Assertions: 0x4=USB
id=500 level=255 0x4=USB mod=01/01/1970 01:00 description=com.apple.usb.externaldevice.1d100000 owner=IOUSBHostDevice
Idle sleep preventers: IODisplayWrangler

- Even after 20 seconds, closing the lid does not trigger sleep mode, it only turns the screen off, with no way of turning it back on when I reopen the lid
- 'Apple menu -> Sleep' works as expected, and the laptop automatically goes to sleep mode after 5 minutes of inactivity (set in System Settings)

Please find the requested files attached.
Thanks in advance !
Click to expand...

You should check with ACPIDebug, whether the _LID method is being called and whether it is returning the expected values (read the ACPI spec, and ACPIDebug README).
 
RehabMan said:
You should check with ACPIDebug, whether the _LID method is being called and whether it is returning the expected values (read the ACPI spec, and ACPIDebug README).
Click to expand...
Well, it seems a bit complicated but I might give it a look when I have some time.
Anyway, thank you for your help RehabMan !
 
First of all, RehabMan thank you very much for putting so much useful information on this forum!! And cfb44 thank you for writing specific instructions for Yoga 2 Pro.

I really tried to read this thread as well the linked ones cover-to-cover and yet...

I was able to unlock "Advanced" menu in BIOS and adjust DVMT to 96MB. Got Clover to load from HDD with working keyboard, trackpad and battery indicator.

With that said I have to admit that even though I got pretty far with turning my laptop into a Hackintosh, a few of the main components don't work:
1) Display QHD+ QE/CI
2) WiFi (external)
3) Audio

1) I am quite sure that the issue is with config.plist file, because I seem to have loaded all of the right kexts and adjusted DSDT and SSDTs. When I replace the default file with config_HD4600_4400_4200.plist (without _HD46...), the system halts at IOConsoleUsers: gIOScreenLockState 3, hs 0, bs 0, now 0, sm 0x0

2) For WiFi I already found the same card that cfb44 mentioned in his earlier posts (ebay), so keeping my fingers crossed that I can get BIOS unlocked and install the new card, but for now, I was trying to use NullEthernet with USB Wifi adapter. The problem is that I don't even know how to test if it works as my home network is password protected and Sys>Prop>Networking doesn't show any option for that under Ethernet.

3) I guess that's related to #1 :-/

I would super appreciate it any guidance! Thank you!!
 
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