Hi,
after a few tests I discovered way how to place info from KEXT to system, hence system do not show KEXT is loadad :-)
1. SIP disabled in recovery mode, reboot with CMD-R
2. in terminal in recovery: csrutil disabled
reboot
3. sudo bash
password:
4. chown -R root:wheel /Library/Extensions/NameofFile.kext
5. chmod -R 755 /Library/Extensions/NameofFile.kext
6. codesign --deep -fs - /Library/Extensions/NameofFile.kext
7. touch /Library/Extensions; kextcache -update-volume /
8. reboot
Also great place to see loaded extension is alt-apple menu, system information, Software/ Extensions
there is vissible if KEXT is signed and loaded. At my situaition it looks NO.
Verze: 0.1
Poslední změna: 23.09.18 22:53
ID balíku: com.NameOffile
Načteno: Ne
Obdrženo od: Neznámá
Místo: /Library/Extensions/NemeofFile.kext
Verze Kext: 0.1
Lze zavést: Ne
Chyby ověření podpisů: Kext signature validation error code -67050
Závislosti: Splněno
Podepsáno: Neznámá
Useful app for check what really done with KEXT is IOJones.
https://sourceforge.net/projects/iojones/
from this app is posible to easy locate AMD10000.KEXT
whis is modified by new KEXT.
here are new lines, which control Fan Speed and Undervolting. This lines was add by manually addes KEXT.
aty_properties, Dictionary, 9 values
PP_DisableClockStretcher, Number, 0x1
PP_ToolsLogSpaceSize, Number, 0x80000
PP_GfxOffControl, Number, 0x0
PP_PhmSoftPowerPlayTable, Data, <c2 06 0b 00 02 c2 06 34 08 00 00 a4 35 00 00 7c 00 09 00 00 00 1a fa 00 fa 00 fa 00 00 00 00 00 76 00 01 0b 00 00 00 09 07 00 00 6e 04 00 00 cc 03 00 00 cc 03 00 00 cc 03 00 00 e8 03 00 00 c9 04 00 00 6e 04 00 00 6e 04 00 00 34 04 00 00 2a 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 bc 02 00 00 66 01 00 00 36 01 00 00 36 01 00 00 36 01 00 00 5e 01 00 00 26 02 00 00 66 01 00 00 66 01 00 00 93 00 00 00 0e 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 0e 00 00 00 01 01 01 01 01 01 01 01 01 00 01 01 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1d 00 00 00 98 08 00 00 98 08 00 00 98 08 00 00 d5 03 00 00 98 08 00 00 d5 03 00 00 98 08 00 00 d5 03 00 00 b0 04 00 00 00 00 00 00 0a 0f 00 00 0a 0f 00 00 5f 00 00 00 6e 00 00 00 02 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 5f 00 00 00 64 00 00 00 5f 00 00 00 64 00 00 00 5f 00 00 00 64 00 00 00 5f 00 00 00 64 00 00 00 5f 00 00 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 28 03 00 00 28 03 00 00 28 03 00 00 e2 02 00 00 28 03 00 00 e2 02 00 00 28 03 00 00 e2 02 00 00 5e 01 00 00 14 00 00 00 c2 01 00 00 c2 01 00 00 19 00 00 00 32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 19 00 00 00 14 00 00 00 19 00 00 00 14 00 00 00 19 00 00 00 14 00 00 00 19 00 00 00 14 00 00 00 19 00 00 00 14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ff ef f4 39 00 00 00 00 fa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fa 00 00 00 32 00 00 00 4a 01 00 00 64 00 6e 00 5e 00 73 00 73 00 ff ff ff ff ff ff 00 00 00 00 00 00 00 00 01 00 73 00 00 00 00 00 00 00 00 00 f0 0a f0 0a a0 0f a0 0f 26 00 00 00 01 01 09 00 00 00 00 00 00 00 00 00 5b b1 bf 3e ec 51 f8 be 65 19 52 3f 00 01 08 00 64 3b 9f 3f 16 de a5 bd 00 00 00 00 00 00 00 00 00 00 00 00 00 01 08 00 35 5e 9a 3f 8f 36 2e 3e 00 00 00 00 00 00 00 00 00 00 00 00 00 01 08 00 69 6f b0 3f 48 33 16 3d 00 00 00 00 00 00 00 00 00 00 00 00 00 01 08 00 e5 61 a1 3f 12 f7 58 bd 00 00 00 00 00 00 00 00 00 00 00 00 00 01 03 00 b5 15 83 3f c2 dd 19 3e 00 00 00 00 00 00 00 00 00 00 00 00 00 01 08 00 86 38 86 3f 0e be 30 3e 00 00 00 00 00 00 00 00 00 00 00 00 00 01 08 00 83 c0 5a 3f 4d a1 f3 3d 00 00 00 00 00 00 00 00 00 00 00 00 02 01 08 00 00 00 00 00 00 00 00 00 a4 70 8d 3f e4 14 85 bf d5 e7 32 3f 02 01 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d5 e7 32 3f 01 01 08 00 00 00 80 3f 00 00 00 00 d1 91 fc 3e 1f 85 2b bf 32 77 75 3f bc 02 28 03 6e 04 5c 05 0a 06 93 06 d5 06 ed 06 09 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 66 01 e6 01 6b 02 f4 02 52 03 cc 03 6e 04 6e 04 36 01 90 01 0c 02 6b 02 a8 02 f4 02 52 03 cc 03 36 01 90 01 0c 02 6b 02 a8 02 f4 02 52 03 cc 03 36 01 0c 02 37 02 6b 02 a8 02 f4 02 52 03 cc 03 5e 01 20 03 4c 04 4c 04 26 02 62 02 b2 02 f8 02 66 03 c0 03 38 04 c9 04 66 01 c6 01 37 02 a8 02 f4 02 52 03 cc 03 6e 04 66 01 c6 01 37 02 a8 02 f4 02 52 03 cc 03 6e 04 93 00 f2 00 58 01 e4 01 15 02 aa 03 13 04 34 04 0e 01 1c 02 2a 03 00 00 00 00 00 00 00 00 00 00 09 07 6e 04 cc 03 cc 03 cc 03 e8 03 6e 04 6e 04 34 04 2a 03 c9 04 00 00 c8 00 2c 01 60 09 f0 0a 28 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 09 07 01 00 00 00 00 00 00 02 06 06 50 00 34 01 00 00 00 00 00 00 00 00 00 00 00 00 90 01 90 01 90 01 90 01 90 01 90 01 90 01 14 00 54 0b 54 0b 0a 0f 5f 00 00 00 00 02 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 50 8d 97 3c 0a d7 a3 3b 00 00 00 00 ea b2 98 3c 87 a2 40 3d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 00 01 00 00 00 00 00 00 00 a0 00 00 00 08 10 02 10 1a 04 4c 04 e8 03 e8 03 e8 03 e8 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86 0b 22 0b 54 0b 00 00 90 01 90 01 38 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00>
PP_Falcon_QuickTransition_Enable, Number, 0x1
PP_DisableULV, Number, 0x1
PP_PhmUseDummyBackEnd, Number, 0x0
PP_EnableUploadFirmware, Number, 0x0
PP_DisablePowerContainment, Number, 0x1
The Bolt letters are new for KEXT and allow manually control VEGA Card.
The table of Hexa codes could be generate by VGTab.app as I wrote before.
Details about the trouble situation with Fan speed and undervolting VEGA RADEON and more infos are here:
https://forums.macrumors.com/threads/how-to-downvolt-a-radeon-vii.2194899/
Share and Enjoy.
Patrik