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Lenovo ThinkPad T420 with UEFI Only

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10 hours ago, Bugfix said:

My display is the AUO one:


28: None 00.0: 10002 LCD Monitor
  [Created at monitor.125]
  Unique ID: rdCR.xTjZCjuW0P3
  Parent ID: _Znp.L_qGQ0CawLB
  Hardware Class: monitor
  Model: "AUO LCD Monitor"
  Vendor: AUO "AUO"
  Device: eisa 0x213e 
  Resolution: 1600x900@60Hz
  Size: 309x174 mm
  Year of Manufacture: 2010
  Week of Manufacture: 33
  Detailed Timings #0:
     Resolution: 1600x900
     Horizontal: 1600 1664 1706 2010 (+64 +106 +410) -hsync
       Vertical:  900  903  906  912 (+3 +6 +12) -vsync
    Frequencies: 73.33 MHz, 36.48 kHz, 40.00 Hz
  Year of Manufacture: 2010
  Week of Manufacture: 33
  Detailed Timings #1:
     Resolution: 1600x900
     Horizontal: 1600 1664 1706 2010 (+64 +106 +410) -hsync
       Vertical:  900  903  906  912 (+3 +6 +12) -vsync
    Frequencies: 110.00 MHz, 54.73 kHz, 60.01 Hz
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #27 (VGA compatible controller)

 

yeah AUO1 LCD is inferior to LG. to fix the strecthing thing - make sure you have DualLink=1

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On 6/9/2019 at 2:32 AM, tluck said:

yeah AUO1 LCD is inferior to LG. to fix the strecthing thing - make sure you have DualLink=1

 

That did it! Thank you! Everything is working now. I'm using the config.EDID-2e2.plist without any changes other than the DualLink option.

 

Please add a note about this option to your guide. I'm sure it will help other people with the same issue.

 

 

For anyone wondering how to set DualLink to 1

 

Go to the Graphics section of your config.plist section and add:

 

<key>DualLink</key>
<integer>1</integer>

 

e.g.:

<key>Graphics</key>
<dict>
	<key>DualLink</key>
	<integer>1</integer>
	...
	...
</dict>

 

 

Thank you again! :thumbsup_anim:

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Well, I recall "mixed" results with Chris´s contributions in the other forum.

Anyway he took the time to try and gave credits to Dosdude etc.

Good to know HD3000 is not dead…Switching to English is maybe asking for too much. ;)

 

29954025_CatalinaBeta.png.5506444ad00e9ab7e0c2c4f4d918e776.png

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Hey guys,

 

I just wanted to try using macOS on my modded T420, since it's running pretty well on my desktop pc. 

 

T420 data: FHD-Panel (0HT622, AUO B140HAN01.3) I i5-2520M Intel HD 3000 8GB RAM

 

As for the display adapter (LVDS->eDP) I'm using this one: https://www.ebay.de/itm/LCD-controller-board-1920X1080-IPS-1080P-FHD-Screen-Kit-for-thinkpad-T430S-T420S/163082575437?hash=item25f87a9e4d:g:g8EAAOSwrCZbDLeu

 

With the help of the included guide in this thread I was able to install and setup macOS Sierra nearly in a perfect manner. But theres a small, but really drastic problem in my case since I upgraded my screen to FHD (it is so much better, trust me). Although it work's perfectly fine on Windows 10, I now got a problem in macOS with the screen I guess. 

 

I've tried nearly everything I can (being a beginner), but it just don't want to work properly. 

 

The situation right now: I can only operate the computer using and external monitor connected through the Displayport on the T420. The internal display remains dark, no matter what I do. It is definitely on, since I can see the backlight working, but it stays black the whole time. In macOS it is being recognized (as you can see in the pictures attached), even with the right resolution and settings. 

 

-Inject Intel, Inject the proper EDID, Duallink=0/1 doesn't solve the problem. 

 

That's why I'm desperately asking for help here. 

 

I've attached all the informations I have including my current EFI/config.plist

 

I would really appreciate your help! :)

LEN03.txt

 

EFI_now.zipScreen.pngsettings.png

Edited by D4Ci0

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Looks like a nice display hack!

From the specs, could it be your display is built in from factory e.g. with a T460 or similar Dell Skylake notebooks?

I that case, it might help to look at the display config of those HackBooks - I´m only guessing though.

 

Off topic:

How much did you pay for the IPS hack and how long did it take swapping the display?

 

 

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Yeah, it‘s basically a display for the T450(s), which is one of the best for 14” and besides that fits perfectly into the T420/T430 top cover. 

 

Changing the display is a 15 minute job, you just need to place the converter board somewhere behind the panel or in the connector area of the motherboard behind the keyboard. Price all in all somewhere 100-115€, really woth it. 

 

I’ve already tried copying some files in terms of the graphics from T450 EFIs, but they don’t really changed/patched that much, since the HD4000 onwards eDP connectors seem to be standard. 

 

I think trying a different SMBIOS would be a option (towards MBP Pro Retina 2012), but they are using HD4000 and Ivy-Bridge, which could be problematic? 

 

 

Edited by D4Ci0

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16 hours ago, D4Ci0 said:

Hey guys,

 

I just wanted to try using macOS on my modded T420, since it's running pretty well on my desktop pc. 

 

T420 data: FHD-Panel (0HT622, AUO B140HAN01.3) I i5-2520M Intel HD 3000 8GB RAM

 

As for the display adapter (LVDS->eDP) I'm using this one: https://www.ebay.de/itm/LCD-controller-board-1920X1080-IPS-1080P-FHD-Screen-Kit-for-thinkpad-T430S-T420S/163082575437?hash=item25f87a9e4d:g:g8EAAOSwrCZbDLeu

 

With the help of the included guide in this thread I was able to install and setup macOS Sierra nearly in a perfect manner. But theres a small, but really drastic problem in my case since I upgraded my screen to FHD (it is so much better, trust me). Although it work's perfectly fine on Windows 10, I now got a problem in macOS with the screen I guess. 

 

I've tried nearly everything I can (being a beginner), but it just don't want to work properly. 

 

The situation right now: I can only operate the computer using and external monitor connected through the Displayport on the T420. The internal display remains dark, no matter what I do. It is definitely on, since I can see the backlight working, but it stays black the whole time. In macOS it is being recognized (as you can see in the pictures attached), even with the right resolution and settings. 

 

-Inject Intel, Inject the proper EDID, Duallink=0/1 doesn't solve the problem. 

 

That's why I'm desperately asking for help here. 

 

I've attached all the informations I have including my current EFI/config.plist

 

I would really appreciate your help! :)

LEN03.txt

 

EFI_now.zipScreen.pngsettings.png

Hi

My computer is T420s Mod FHD display.  Same panel.

This is my config.plist. You can try.

 

config.plist

Edited by jenyunhuang

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4 hours ago, jenyunhuang said:

Hi

My computer is T420s Mod FHD display.  Same panel.

This is my config.plist. You can try.

 

config.plist

Thank you @jenyunhuang for your config.plist 

 

With @jenyunhuang config.plist there is a big step forward. The display is still recognized by Sierra, it shows a selection window for the internal monitors refresh rate. And there‘s backlight working according the adjusted brightness in the settings. So I can adjust the brightness on the go.

 

But there‘s still no image on the screen. It‘s still completely black.

 

I‘ve tried to copy&paste my EDID (we both have the same monitor - but different EDID, most likely because my monitor is an original/branded Lenovo one with Lenovos EDID. When I do so, backlight/brightness control isn‘t working like with my original config.plist. 

 

Still don‘t know how to solve this problem. Appreciate every help :)

 

 

 

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On 6/24/2019 at 7:42 AM, D4Ci0 said:

Thank you @jenyunhuang for your config.plist 

 

With @jenyunhuang config.plist there is a big step forward. The display is still recognized by Sierra, it shows a selection window for the internal monitors refresh rate. And there‘s backlight working according the adjusted brightness in the settings. So I can adjust the brightness on the go.

 

But there‘s still no image on the screen. It‘s still completely black.

 

I‘ve tried to copy&paste my EDID (we both have the same monitor - but different EDID, most likely because my monitor is an original/branded Lenovo one with Lenovos EDID. When I do so, backlight/brightness control isn‘t working like with my original config.plist. 

 

Still don‘t know how to solve this problem. Appreciate every help :)

 

are you using WhateverGreen.kext -- if so, maybe you can remove it to test.

you definitely need to inject an EDID to match the LCD: your EDID shows ProductID 40A3 vs jenyunhuang is 40E2 - so these are 2 different models. 

 

@jenyunhuang do you have the eDP adapter too? that could be different? the 1st frame buffer for HD 3000 MBP8,1 is set to LVDS vs eDP?

 

 

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@tluck Thank You so much for Your answer. 

 

I tried removing WhateverGreen.kext, didn't help. Setting platform-id to 0x12345678 didn't help too.

 

@jenyunhuang I'll just go out on a limb here and guess that his adapter is basically the same LVDS->eDP, because they're nearly identical from the outside perspective and as from I know through all the thinkpad-forums, these FHD-boards are the same. There are some differences between T420 FHD-boards and T420/ T430- WQHD-Boards though. 

The T420board is also sold from the same seller that I bought mine from on eBay.

 

Strangely with his config.plist I get backlight (and backlight control in Sierra) on the internal screen which I don't get when using my EDID in his config.plist or using "my" config.plist. Since 3 hours im figuring out on how to edit the AppleBacklightInjector.kext in the EFI under "ApplePanels", where all the "F10Txxx"-listing are, to enable backlight with my EDID at least and from there on work further.

 

My current ioreg status:

 

T420:~ nutzer$ ioreg -l | grep ApplePanel
    | |       "ApplePanels" = {"F10T0366"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>,"F10T159e"=<00110000001c002c003f00510068008a00ab00cc00fa0135018101dd024402c9035903e8>,"F10T02e3"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>,"F10T11ed"=<00110000004f007a00b000e30122017f01db023802b7035a042e052e064c07bc094b0ad8>,"F10T050b"=<00110000001c002c003f00510068008a00ab00cc00fa0135018101dd024402c9035903e8>,"F10T02e2"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>,"F10T213e"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>,"F10T313c"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>,"F10T40e2"=<00110000008c00d80136018f01fe02a3034503e704c70535075a091c0b130d9b10591312>}

and:

T420:~ nutzer$ ioreg -l| grep -i yEDID
    | |   | | |       "IODisplayEDID" = <00ffffffffffff0030aea340000000000c190104951f1178ea8545a45a54a1270c505400000001010101010101010101010101010101293680a070381f403020350035af1000001e0000000000000000000000000000000000000000000f00d1093bd1093b1e0a0006af3d12000000fe004231343048414e30312e33200a0036>
    | |   | | |       "IODisplayEDID" = <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>

So my EDID is recognized correctly as I from what I see and think. 

 

When I watched the internal display while using the notebook, here and there I saw some white little lines/point flashing for milliseconds. 

 

What is the 1st framebuffer, something I could change?

 

 

 

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      Follow instructions in screen.

      After install

      After first part install the system will reboot. Maybe you have to press F12 again and select the flash drive.
      
      The second part of the installation will begin. This will take 16 minutes.
       

      Post installation

      Install bootloader
       
      When the second part of install finish, the system will reboot again.

      After performing the user initial setup and go to the desktop, you need to install Clover on internal disk.

      Open the Clover installer inside flash drive that you copied before.

      Use same options above but choose the system partition this time.

      Now you need to replace the EFI folder inside your destination disk EFI parittion, with EFI folder inside flash card EFI partition.

      If the flash drive EFI partition of your destination disk or flash drive is unmounted:
      Mount with terminal "sudo diskutil mount /dev/rdiskXs1". To know what X is, use "diskutil list", most likely is 0 for destination disk and 1 for flash drive.
       
      Then, eject the flash drive.
       
      Last step
       
      Move all Kexts from EFI partition to /Library/Extensions, with those commands in Terminal:
      sudo mv -R /Volumes/EFI/EFI/CLOVER/kexts/Other/* /Library/Extensions/ sudo chmod -R 755 /Library/Extensions sudo chown -R root:wheel /Library/Extensions sudo kextcache -i / Restart the system.
       
       
      It's done!
       
       
      Updates
       
      System update 10.14.3
       
      - Updated with success;
      - Everything works perfectly after reboot;
       

       
       
      System update 10.14.4
       
      - Updated Clover to 4910.
      - Updated Lilu.kext to 1.3.5 and WhateverGreen to 1.2.7.
      - After first reboot the update progress stoped with:
      GTrace synchronization point 4 Unsupported CPU Unsupported PCH hmm.. mismatch sizes: 3100 vs 20 It was still possible to start the previous installation, selecting "Macintosh" as opposed to "macOS Install" in Clover.
      So I created a flash drive with Clover 4910 and put only my config.xml, SSDT-L440.aml, the updated Lilu.kext and WhateverGreen.kext. And I decided to test VirtualSMC instead of FakeSMC.kext.
      With this I was able to install update 10.14.4. After installation I can boot normally, even with FakeSMC.kext that already in /Library/Extensions.
      I do not know what exactly happened, but now works everything like was previously.
       


       
       
      System update 10.14.5
       
      - Updated Clover to 4934.
      - Updated Lilu.kext to 1.3.6 and WhateverGreen to 1.2.9.
      - After first reboot the update progress stoped again (like 10.14.4 update) with:
      GTrace synchronization point 4 Unsupported CPU Unsupported PCH hmm.. mismatch sizes: 3100 vs 20 It was still possible to start the previous installation, selecting "Macintosh" as opposed to "macOS Install" in Clover.
      I decided to rollback to FakeSMC.kext but this time with the version of HWSensors 3. Link above.
      With this I was able to install update 10.14.5. After installation I can boot normally.
       

       
       

      And last but not least
       
      I would like to thank the following community members, by making these dream possible:
      @crushers, @snatch, @apianti, @blackosx, @blusseau, @dmazar, @slice2009, @autumnrain, @phpdev32, @EMlyDinEsH, @RehabMan, @Scellow, @mitch_de, @Shailua, @Andy Vandijck, @maxfierke, @ArturXXX, @LexHimself, @brumas, @Shiki and all others members involved directly or indirectly.
       
       
       
       
       
       
      32MB_DRAM-prealloc_config.plist.zip
      128MB_DRAM-prealloc_config.plist.zip
      SSDT-L440.aml
      VoodooHDA.kext.zip
      AppleHDADisabler.kext.zip
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