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[Guide] Lenovo ThinkPad T440P

Joined
Mar 12, 2013
Messages
11
Motherboard
Lenovo T440p
CPU
i5-4300M/HM86
Graphics
HD 4600m
Mobile Phone
Android, iOS
Your ioreg shows audio working. What is the issue?
It is indeed working!
Rebooted from Ubuntu and there it was, "Internal Speakers" in Sound panel.

I've must messed up when clearing cache. I am using KextBeast to install kexts on /L/E & rebuild kextcache.

Is this terminal command preferred to clear cache?
Code:
sudo touch /System/Library/Extensions && kextcache -u /
 

RehabMan

Moderator
Joined
May 3, 2012
Messages
190,989
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
MacBook Air
Mobile Phone
iOS
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
Use Hex Fiend, resize the window as I mentioned. Look at every other line.
The initial search for '06 00 26 0a 01' is just to get positioned within the table.
yep I did, here is the image of hex friend


I I tried these id ( exact same result when I find by the tool https://hexed.it):
05 00 26 0a 01 => 0x0a260005


06 00 26 0a 01 => 0x0a260006 (the default one)
08 00 2e 0a 01 => 0x0a2e0008
0c 00 16 0a 01 => 0x0a16000c
07 00 26 0d 01 => 0x0d260007
03 00 22 0d 00 => ????
(some column not end with 01, how to convert back ?)


09 00 26 0d 01 => 0x0d260009
0e 00 26 0d 01 => 0x0d26000e
0f 00 26 0d 01 => 0x0d26000f

anything wrong?
hex fiend or any hex viewer are similar, just the tool for viewing

I tried all of id (id I listed), but no one work, all id make system reboot (same with default one)
how to debug to find the root cause,
Do I need to use kext in Debug mode
 
Last edited:

RehabMan

Moderator
Joined
May 3, 2012
Messages
190,989
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
MacBook Air
Mobile Phone
iOS
yep I did, here is the image of hex friend


I I tried these id ( exact same result when I find by the tool https://hexed.it):
05 00 26 0a 01 => 0x0a260005


06 00 26 0a 01 => 0x0a260006 (the default one)
08 00 2e 0a 01 => 0x0a2e0008
0c 00 16 0a 01 => 0x0a16000c
07 00 26 0d 01 => 0x0d260007
03 00 22 0d 00 => ????
(some column not end with 01, how to convert back ?)


09 00 26 0d 01 => 0x0d260009
0e 00 26 0d 01 => 0x0d26000e
0f 00 26 0d 01 => 0x0d26000f

anything wrong?
hex fiend or any hex viewer are similar, just the tool for viewing

I tried all of id (id I listed), but no one work, all id make system reboot (same with default one)
how to debug to find the root cause,
Do I need to use kext in Debug mode
EAch ig-platform-id is listed in your image (every other row).
See if you can find them all.
Hint: some of them are off-screen (at top).
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
EAch ig-platform-id is listed in your image (every other row).
See if you can find them all.
Hint: some of them are off-screen (at top).
I tried all of my listed, no one works,
but is the Id I listed correct?
Why dont you point me one ID example?
Seem, you dont want to help me to debug my issue?
 

RehabMan

Moderator
Joined
May 3, 2012
Messages
190,989
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
MacBook Air
Mobile Phone
iOS
I tried all of my listed, no one works,
but is the Id I listed correct?
There are many more ig-platform-id values than the ones you listed.
Look at the hex data carefully.
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
some one like this
03 00 22 0d 00 => ???

how to convert back
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
There are many more ig-platform-id values than the ones you listed.
Look at the hex data carefully.
some row like this
03 00 22 0d 00 => ???

how to convert back
 

RehabMan

Moderator
Joined
May 3, 2012
Messages
190,989
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
MacBook Air
Mobile Phone
iOS
some one like this
03 00 22 0d 00 => ???

how to convert back
ig-platform-id is 4 bytes, not 5.
The one you mention there is 0x0d220003.
 
Joined
Nov 21, 2017
Messages
88
Motherboard
thinkpad t540p
CPU
i5-4300M
Graphics
Intel HD 4600
Mobile Phone
Android, iOS
ig-platform-id is 4 bytes, not 5.
The one you mention there is 0x0d220003.




I found these IDs :

1. 00 00 16 0c 0x0c160000
2. 00 00 26 0c 0x0c260000
3. 00 00 06 04 0x04060000
4. 00 00 16 04 0x04160000
5. 00 00 26 04 0x04260000
6. 00 00 26 0d 0x0d260000
7. 00 00 16 0a 0x0a160000
8. 00 00 26 0a 0x0a260000
9. 05 00 26 0a 0x0a260005
10. 06 00 26 0a 0x0a260006
11. 08 00 2e 0a 0x0a2e0008
12. 0c 00 16 0a 0x0a16000c
13. 07 00 26 0d 0x0d260007
14. 03 00 22 0d 0x0d220003
15. 0a 00 2e 0a 0x0a2e000a
16. 0a 00 26 0a 0x0a26000a
17. 0d 00 2e 0a 0x0a2e000d
18. 0d 00 26 0a 0x0a26000d
19. 04 00 12 04 0x04120004
20. 0b 00 12 04 0x0412000b
21. 09 00 26 0d 0x0d260009
22. 0e 00 26 0d 0x0d26000e
23. 0f 00 26 0d 0x0d26000f

tried to boot step by step though each id (with inject EDID enable),
from id number 1 to number 13 I got same result System restart
the id number 14 0x0d220003 system stop (forever) screen at here(should be restart in others ID)


then I tried boot with id 14 and change inject EDID = false
=> WOW, I reach Desktop with transparent effect, and check system info, Intel HD 4600 1.5GB already
everythink very smooth.



but It seems not complete full performance,
because only 24bit color in detail info

still having something wrong with inject EDID, right?

I also get message warning everytime I login to Desktop









I would like to thankyou RehabMan very very much, for your support
I cannot install my machine without you.
 
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