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That''s a very common issue.
To fix it, follow the steps below.

Extract the ACPI set from your system.
Copy the SSDT1-cpu-def file and the apic.aml file to Desktop.
Rename the ssdt to dsdt.aml

Thanks mate! that did the trick with 21.5
Here is the log: https://pastebin.pl/view/9d1b30b9
The new ssdt looks much healthier than the previous one.
Somehow after restarting x86platformplugin is not loading any more with the new ssdt :/

edit: they seem to address different addresses if I'm not mistaken.
 

Attachments

  • new_SSDT.aml.zip
    1.6 KB · Views: 139
  • Screen Shot 2021-02-03 at 07.56.53.png
    Screen Shot 2021-02-03 at 07.56.53.png
    149.5 KB · Views: 155
  • Screen Shot 2021-02-03 at 10.30.05.png
    Screen Shot 2021-02-03 at 10.30.05.png
    1.3 MB · Views: 170
Last edited:
Thanks mate! that did the trick with 21.5
Here is the log: https://pastebin.pl/view/9d1b30b9
The new ssdt looks much healthier than the previous one.
Somehow after restarting x86platformplugin is not loading any more with the new ssdt :/

edit: they seem to address different addresses if I'm not mistaken.
No PR files attached.

Copy of IOReg.
Kextcache output.
EFI. Make sure to exclude resources folder.
 
No PR files attached.

Copy of IOReg.
Kextcache output.
EFI. Make sure to exclude resources folder.
kextstat
 

Attachments

  • extracted_acpi_tables.zip
    84.6 KB · Views: 129
  • ioreg.zip
    534.1 KB · Views: 126
  • oc.zip
    2.3 MB · Views: 139
Kextstat and Kextcache are two different things.
Yeah, sorry for the goof up.


post@DESKTOP-1S52J6M ~ % sudo Kextcache -i /
Kextcache -i /
Executing: /usr/bin/kmutil install --volume-root / --check-rebuild
rebuilding local auxiliary collection
kmutil done


Is this result ok?
 
Last edited:
This method work for non -E sandybridge? (I7 2670QM)
I use sandybridge laptop on catalina10.15.7
Thanks
 
This method work for non -E sandybridge? (I7 2670QM)
I use sandybridge laptop on catalina10.15.7
Thanks
Only valid for SB-E and IB-E CPU lineup.

Read here:
 
hello, tell me, are there any bigsur patches for Ivy Bridge-E?
 
For Catalina fix, is the #3 just a place holder? The FIND and REPLACE strings are identical.
 

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