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Lenovo ThinkPad T420 with UEFI Only

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  • DSDT for "heat-step" (dsdt.heat-step.aml) has a modified method to control the fan speed vs automatically by BIOS.

     

    Follow the installation recipe to use this approach:

    1) copy/replace the default dsdt.aml file with the dsdt.heat-step.aml file in the ESP

    2) locate the ACPIPoller.kext in the Utilities folder and install the kext in /Library/Extensions

    3) reboot

    For Example:

  • mkdir /Volumes/ESP

    sudo mount

    -t msdos /dev/disk0s1 /Volumes/ESP

    cp

    -a /Volumes/ESP/EFI/CLOVER/ACPI/dsdt.heat-step.aml /Volumes/ESP/EFI/CLOVER/ACPI/patched/dsdt.aml

     

    cd

    ~/Downloads/Lenovo-T420-Clover-YYYY.MM.DD/Utilities

    sudo cp -a ACPIPoller.kext /Library/Extensions

    sudo chown -R 0:0 /Library/Extensions/ACPIPoller.kext

    sudo chmod -R go-w /Library/Extensions/ACPIPoller.kext

    sudo kextcache -i /

 

 

Heat-step works perfectly. The fan revs down when CPU temp is low and revs up when temp is high.

Default dsdt.aml always works at 3600 rpm.

 

But I wonder if there is any posibility to change the fan curve in the dsdt.heat-step.aml

 

it´s more silent but hotter. revs between 1900-3600 

 

i´d like to achieve  a 4500 rpm peak for better cooler.

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  • DSDT for "heat-step" (dsdt.heat-step.aml) has a modified method to control the fan speed vs automatically by BIOS.

     

    Follow the installation recipe to use this approach:

    1) copy/replace the default dsdt.aml file with the dsdt.heat-step.aml file in the ESP

    2) locate the ACPIPoller.kext in the Utilities folder and install the kext in /Library/Extensions

    3) reboot

    For Example:

  • mkdir /Volumes/ESP

    sudo mount

    -t msdos /dev/disk0s1 /Volumes/ESP

    cp

    -a /Volumes/ESP/EFI/CLOVER/ACPI/dsdt.heat-step.aml /Volumes/ESP/EFI/CLOVER/ACPI/patched/dsdt.aml

     

    cd

    ~/Downloads/Lenovo-T420-Clover-YYYY.MM.DD/Utilities

    sudo cp -a ACPIPoller.kext /Library/Extensions

    sudo chown -R 0:0 /Library/Extensions/ACPIPoller.kext

    sudo chmod -R go-w /Library/Extensions/ACPIPoller.kext

    sudo kextcache -i /

 

 

Heat-step works perfectly. The fan revs down when CPU usage is low and revs up when the load is high.

Default dsdt.aml always works at 3600 rpm.

 

But I wonder if there is any posibility to change the fan curve in the dsdt.heat-step.aml

 

it´s more silent but hotter. revs between 1900-3600 

 

i´d like to achieve  a 4500 rpm peak for better cooler.

 

Hi Traskhy

 

 

The fan speed curve is depend on the cpu temperature not loading.

 You can find the code, and you can change it by yourself.

 

/* FAN control START */

                        If (LGreaterEqual (Local0, 0x55)) // CPU Temp is >= 85C
                        { Store (0x07, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 7 - Maximum Speed 
                        Else {
                        If (LGreaterEqual (Local0, 0x50)) // CPU Temp is >= 80C
                        { Store (0x06, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 6 
                        Else {
                        If (LGreaterEqual (Local0, 0x4B)) // CPU Temp is >= 75C
                        { Store (0x05, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 5 
                        Else {
                        If (LGreaterEqual (Local0, 0x46)) // CPU Temp is >= 70C
                        { Store (0x04, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 4 
                        Else {
                        If (LGreaterEqual (Local0, 0x41)) // CPU Temp is >= 65C
                        { Store (0x03, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 3 
                        Else {
                        If (LGreaterEqual (Local0, 0x3C)) // CPU Temp is >= 60C
                        { Store (0x02, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 2 
                        Else {
                        If (LGreaterEqual (Local0, 0x01)) // CPU Temp is >= 01C
                        { Store (0x01, \_SB.PCI0.LPC.EC.HFSP) } // Set FAN Mode 1 - Lowest Speed 
                        }
                        }
                        }
                        }
                        }
                        }
/* FAN control END */

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Am I the only one still experiencing erratic Caps Lock behaviour on 10.12.6?

 

Same kext pack installed on W520, T420 & X220 and all exhibiting the exact same behaviour. All 3 keyboards are UK LITEON versions.

 

Press once -  caps on (LED on)

Press again - caps off

Press again - caps off ( LED on)

Press again - caps on

Slow double click - reverses operation 25% of the time

Fast double click - no effect

 

driving me nuts.........

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capslock -

 

hmm  here is the code in the VoodooPS2Controller  - that should being doing what you are doing manually (press 2x) - i wonder why it isnt working for that keyboard?

if ( adbKeyCode == 0x39 && version_major >= 16) // Caps Lock Fix
    {
        clock_get_uptime(&now_abs);
        dispatchKeyboardEventX(adbKeyCode, goingDown, now_abs);
        clock_get_uptime(&now_abs);
        dispatchKeyboardEventX(adbKeyCode, goingDown, now_abs);
        if (!goingDown)
        {
            _capsLock = !_capsLock;
            setAlphaLock(_capsLock);
            setAlphaLockFeedback(_capsLock);
        }
#ifdef DEBUG_VERBOSE
DEBUG_LOG("%s: CapsFix %s\n", getName(), _capsLock?"On":"Off");
#endif
        return true;
    }

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Thanks Tluck.

 

A new US keyboard arrived today, a fabled NMB version ( I prefer the Lite-on actually) and its still doing it but it's a little easier to get it to reverse but this keyboard needs a fast double click.

 

Weird......

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hey, can anybody help me?

 

T420 with deactivated nvidia and 1600x900 display resolution.

The Installer does not load to the end, see picture below

 

5mrukljb.jpg

 

 

whats the problem? (sorry for bad english)

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@Kokzreh

 

Do you have Vmware Fusion installed?

 

Installed any software prior to the kernel panic?

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hey! i have no macos installed, its the boot stick and i try to install the macos to the internal ssd, but the install screen doesnt  appear, because the install usb stick is unable to boot completly.

 

EDIT: The USB Stick was created in a virtual maschine 10.10.5

 

EDIT2: i dont no whats happened, but now, the installer runs like a charm.

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So your trying to install Sierra with the current zip file?

 

Is it a T420?

 

Edit: no worries, glad you got it working!

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It does appear to be an issue with the latest Clover. Exact same problems this afternoon with a clean install to a new SSD.

 

Rolling back the bundle to your previous one sorts it out

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Hello in the Group I have been struggling trying to use this guide for my T520. See here the error that i am getting. Sound assertion error. AppleHDAController. From what i picked up in this and other forums is that it my be related to to the graphic settings.

 

I have followed the Bios setting in the guide and am using the 1600x900 config.plist file.

 

I have tried older releases with no avail. I have tried El Capitan and Sierra both generate the same error.

 

 

Maybe somebody has a tip how to move forward. Many thanks. 

post-1921598-0-94081600-1503758744_thumb.jpg

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@long0311 - what did you change exactly?

 

I have tried all 3 settings. Integrated (there is never stays, it jumps back to Discrete after the reboot), Discrete, and the Optimus mode.

 

Optimus shouldn't work and it does not with this package.  So what exactly did you change ? thx for the info, law

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@Lawmanwilly,

 

I take it your attempting to run it with Nvidia discrete graphics?

 

If so a Mac Pro 8,1 system definition is not what you want for starters.

 

 

Have you patched your own DSDT or are you using the one in the zip file?

 

I can help you with a discrete graphics install but you'll need to do the following:

 

Post a zip file of acpi dump obtained by pressing F4 at clover menu. Files are saved to Clover/Acpi/Origin folder.

 

I need to know the model number of the T520 as well

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use Clover Configurator to edit the .plist. look at ACPI and uncheck all the fixes, they are causing the kernel panics when just trying to boot into the installer. also creating an smbios then trying to boot with the acpi fixes will not work either. I dont know what will stop working from unchecking the fixes, and I do not know why they cause the kernelpanic.


@Lawmanwilly,

I take it your attempting to run it with Nvidia discrete graphics?

If so a Mac Pro 8,1 system definition is not what you want for starters.


Have you patched your own DSDT or are you using the one in the zip file?

I can help you with a discrete graphics install but you'll need to do the following:

Post a zip file of acpi dump obtained by pressing F4 at clover menu. Files are saved to Clover/Acpi/Origin folder.

I need to know the model number of the T520 as well

Do you know how to get the discrete nvs 4200m working on the t420? 

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I just replace Wifi card N6205 by AR9285 and install kext but it panic 3 times after sucessful reboot, and after restart it is still panic! Do u know how to fix it?

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Do you know how to get the discrete nvs 4200m working on the t420?

 

Never tried with NVS4200m but performance-wise it's only like a 20% improvement over Hd3000 (IIRC) therefore not really worth the hassle.

I just replace Wifi card N6205 by AR9285 and install kext but it panic 3 times after sucessful reboot, and after restart it is still panic! Do u know how to fix it?

Clover / Options / Boot Args:

 

Press return

Type -f

Press return

 

Start the system

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What does -f boot argument mean?

Ignore kernel cache.

 

Looking back at what you originally posted I'd missed that the WiFi you had replaced was the stock Intel card so I assume you haven't had working WiFi.

 

I'll also assume that you have flashed a custom BIOS to remove the whitelist?

 

No direct experience with the Atheros card but after a quick read up the simplest way seems to be to get clover to patch the DSDT on the fly unless your comfortable with editing your own DSDT with Maciasl.

 

You'll also need to inject your device and vendor id's into the appropriate kext(s) :

 

Device ID = 002b

Vendor ID = 168c

 

See here

http://www.insanelymac.com/forum/topic/316639-atheros-ar9285-in-el-capitan-10116/

 

PS

 

Maybe a bit late now but a Dell DW1510 card would have been a much better option for you as it's plug and play, dirt cheap secondhand and doesn't require any messing around with.

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      <key>Version</key> <string>1.0</string> <key>Memory</key> <dict> <key>Channels</key> <integer>1</integer> <key>SlotCount</key> <integer>1</integer> <key>Modules</key> <array> <dict> <key>Slot</key> <integer>0</integer> <key>Size</key> <integer>8192</integer> <key>Frequency</key> <integer>2133</integer> <key>Type</key> <string>DDR4</string> </dict> </array> </dict> </dict>  
      PowerManagement  fix:
      Set HWPEnable=YES in Clover (already set), CPUFloor to "700", Frequency to "2300" and "3200"(Normal and Turbo, if you have i7-6700HQ version then it should be "2600", "3500") and "FrequencyVectors" from "0x0d000000" to "0x07000000" in "S/L/E/IOPlatformPluginFamily.kext/Contents/PlugIns/X86PlatformPlugin.kext/Contents/Resources/Mac-A5C67F76ED83108C.plist", MSR _xcpm_idle Patch to KernelToPatch in Clover (If you have High Sierra, change "MatchOS" to 10.13):

      <key>KernelToPatch</key> <array> <dict> <key>Comment</key> <string>MSR 0xE2 _xcpm_idle instant reboot(c) Pike R. Alpha</string> <key>Disabled</key> <false/> <key>Find</key> <data> ILniAAAADzA= </data> <key>MatchOS</key> <string>10.14</string> <key>Replace</key> <data> ILniAAAAkJA= </data> </dict> </array> Reboot, and it's 800MHz in idle state, same on Windows.
       

      Elan SmartTouchpad
      I only use scrolling, one-, double- & tripletap
      If you want to try other gestures go to this link for more informations, options (v4.6.5) ->  DETAILS ABOUT THE SMART TOUCHPAD DRIVER FEATURES
      Fn Brightness keys not working with this, tried several things without success. With VoodoPS2Controller it's working, but you'll have no gestures (neither scrolling).
       
       
      Before updating to a new version of Catalina please update kexts (and clover if necessary) to newer versions to avoid kernel panics.
      Generate a serial number with Clover Configurator.app (open up your config.plist with CC then -> SMBIOS -> Serial Number -> Generate New)
       
      Catalina & Windows 10 Dual-Boot:
      Dual-boot clean install (on one drive), UEFI Only:
       
       Boot into your Mac installer, Create 2 partitions in GUID table (1 for Win (I used FAT32 but I think it doesn't matter what you choose), 1 for Mac),   Install Mac, boot with your USB, mount your EFI partition (use terminal or an EFI mounter app), create an EFI folder (if there is no folder), copy the CLOVER folder I attached to the EFI folder, restart,  Boot into your Win installer, Format the partition you created for Win, install.   Now, it's automatically booting into Windows. To use Clover open cmd in administrator, type:  bcdedit /set {bootmgr} path \EFI\CLOVER\CLOVERX64.efi       5.  You're done! It will booting into Clover when you start the system, and you can select Win or Mac (or another OS if installed on a 3rd partition).
       
      Dual-boot with Windows installed first (on one drive), UEFI Only:
      If you already have Windows and you don't want to lose all your data there is a hope:
      I created a video from this restore method: [Hackintosh] Dual-Boot High Sierra & Windows - when Windows already installed - no data waste - UEFI
      You need bootable Mac Installer and a full system restore image (link is in my video's description).
      (You may see errors if your EFI partition is not 200 MB)
       Boot into your Windows, resize your partition or create one for Mac.  Boot into your Mac installer and in Disk Utility format the partition you created.  Restore from image: select your full system restore image.  When it's finished restoring you just need to restart, then boot to the system with your usb.  When you successfully booted to Mac desktop, mount your EFI partition (use terminal or an EFI mounter app), open EFI, you will see there is a Microsoft folder already (don't touch that!). Copy my CLOVER folder to the EFI folder then Restart.  Now, it's automatically booting into Windows. To use Clover open cmd in administrator, type:  bcdedit /set {bootmgr} path \EFI\CLOVER\CLOVERX64.efi       7.  You're done! You can select your old Windows and your new macOS!
      (Only tried with Windows 8/8.1/10. I don't know Windows 7,etc.)
       
      IF YOU GETTING ERRORS DURING MAC RESTORE:
      - Make sure you have partitions in GPT
      - Windows using 100 MB EFI and will annoy the Mac restore. Don't worry, just ignore the errors.
       
      IF YOU GETTING ERRORS DURING WINDOWS INSTALLATION (could not be formatted, etc):
      - Make sure you have GPT partitions, and GPT (UEFI) installer, also disconnect all external storage drives (except the installer USB)
       
      IF YOU USED RESTORE METHOD THEN CAN'T MOUNT YOUR EFI PARTITION (No EFI partition found):
      - It's because your EFI is not 200 MB or not an "Apple" original EFI,  but do not worry, try another EFI mounter, or mount from terminal (I used EFI mounter v3: Getting errors, but you can mount and use without problem)
      - You also could "mount" the EFI from Windows:
      1st method: open cmd in administrator mode and type:
      diskpart list vol (Now select the "System" volume,(FAT 32) For example I select 4) sel vol 4 list part (Select System type partition, for example 2) sel part 2 assign letter=b (This will "mount" your EFI partition) Open Explorer++ or TotalCommander in administrator mode to manage EFI remove letter=b (This will "unmount" your EFI) 2nd method: open cmd in administrator mode and type:
      mountvol b: /s (This will mount your EFI) Open Explorer++ or TotalCommander in administrator mode to manage EFI mountvol b: /d (This will unmount your EFI) Thanks to all OSXLatitude members for helping me out! (Jake Lo, Hervé, Bronxteck, black.dragon74)!
      Notes:
      2019.11.03: Enabled SIP caused a lots of issues so now it's disabled -> updated bootpack
      2019.11.02: Updated to 10.15.1 -> no problem when/after installing
      2019.10.09: Installed macOS Catalina 10.15 -> Updated Clover, kexts & config.plist -> no problem so far
      2019.08.18: Updated to 10.14.6 -> no problem when/after installing
      2019.06.01: Updated to 10.14.5 -> no problem when/after installing
      2019.04.25: Optimized touchpad scrolling -> updated install files
      2019.03.30: Fixed USB 3.0 ports, fixed Bluetooth crashes after sleep -> updated bootpack
      2019.03.28: Updated to 10.14.4. Unexpected crashes while updating to 10.14.4 -> fixed by updating Clover to the latest (v4910) version. Bluetooth crashes appeared -> fixed by downgraded Brcm*.kexts. Updated bootpack.
      2019.02.24: Bluetooth crashes after sleep -> fixed, updated bootpack. 
      2019.02.22: Updated to 10.14.3. Fixed HDMI Audio by installing "FakePCIID_Intel_HDMI_Audio.kext" -> fixed freezing during boot. Fixed brightness levels by installing "AppleBacklightFixup.kext". Also updated bootpack & postinstall zip down in attachments.
      2019.01.21: Removed FakeSMC.kext, SMCHelper-64.efi, replaced by VirtualSMC.kext, VirtualSMC.efi because I got random freezes when booting system (kextd stall[0], (120s): 'AppleACPICPU' -> CPU is at 100%, fans are spinning fast), also updated bootpack in the attachments "acer_aspire_v591g-55tu_clover.zip" -> Freeze continued, brought back FakeSMC, deleted VirtualSMC (caused BT crashes).
      2019.01.18: HDMI Audio is fixed, I didn't do anything HDMI Audio is not fixed, sometimes it worked but most likely not. (no idea why)
      2018.12.09: Updated to 10.14.2 -> did without any complication
      2018.11.28: Fixed combo-jack garbage sound output by installing ALCPlugFix and CodecCommander.kext
      2018.11.01: Updated to 10.14.1 -> HDMI & VGA ports are gone again. -> Fixed by "AppleIntelSKLGraphicsFramebuffer.kext" rollback from 10.14.
      2018.09.28: Updated to Mojave 10.14 -> Fixed HDMI & VGA Outputs by adding "AppleGraphicsDevicePolicy.kext" patches to config.plist, HDMI audio not working
    • By Cwtf
      I just made a clean install of High Sierra on a 1TB crucial ssd. Installed clover Clover_v2.5k_r5070 into the EFI of this ssd, but when I tried to make it my default boot drive, the clover screen wouldn't come up, and left a black screen.
      I tried using the Olarilia usb drive and clover did the same thing.  The only way I can currently boot is to use my old drive with clover v2.4k_4945 then select  my new drive from the clover menu.   
       
      Do I need to install v2.4k on my new drive or is there a way I can get v2.5k working?
       
      I have a GA-x79-ud5 motherboard, AMD  rx580 graphics card and use a Sony 4k tv as my monitor.
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