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Errors when trying to dissasemble my DSDT.aml file


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Hello,
 
I am following this section of the Opencore guide https://dortania.github.io/Getting-Started-With-ACPI/Laptops/trackpad-methods/manual.html#finding-the-acpi-path and trying to dissasemble my DSDT.aml file to make my own SSDT-GPI0.dsl
 
I got the DSDT.aml file using the SSDTTime python script.
 
When I use the command
# iasl DSDT.aml
 
I get the error:
iASL Warning: There were 6 external control methods found during disassembly, but only 0 were resolved (6 unresolved). Additional ACPI tables may be required to properly disassemble the code.
 
When I use the command:
# iasl -e SSDT*.aml -d DSDT.aml
 
I get the error:
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20190509/psobject-264)
 
Each time when I open the produced DSDT.dsl file I cannot search and find the string: Device (GPI0).
 
Any idea what I am doing wrong?
 
Cheers!
  • 2 weeks later...

There are duplicated symbols in the DSDT/SSDT* set.

Try loading SSDT files individually with '-e' until you find the right one, or a suitable combination of SSDT files.

  • 2 weeks later...
Posted (edited)
On 6/13/2021 at 9:33 PM, flexmcmurphy said:
Hello,
 
I am following this section of the Opencore guide https://dortania.github.io/Getting-Started-With-ACPI/Laptops/trackpad-methods/manual.html#finding-the-acpi-path and trying to dissasemble my DSDT.aml file to make my own SSDT-GPI0.dsl
 
I got the DSDT.aml file using the SSDTTime python script.
 
When I use the command
# iasl DSDT.aml
 
I get the error:
iASL Warning: There were 6 external control methods found during disassembly, but only 0 were resolved (6 unresolved). Additional ACPI tables may be required to properly disassemble the code.
 
When I use the command:
# iasl -e SSDT*.aml -d DSDT.aml
 
I get the error:
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20190509/psobject-264)
 
Each time when I open the produced DSDT.dsl file I cannot search and find the string: Device (GPI0).
 
Any idea what I am doing wrong?
 
Cheers!

You might find it easier to use maciASL (check for latest version) and pull in any desired patches specific to your hardware.

 

https://github.com/acidanthera/MaciASL

 

DSDT extraction from linux:
cd ~/Desktop
sudo cat /sys/firmware/acpi/tables/DSDT > DSDT.aml

 

 

Edited by HenryV
add info

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