[Guide] Disabling discrete graphics in dual-GPU laptops

[Gabriele95]

I'm trying to disable my gt610m on my lenovo g580 with el capitan, i searched for _INI and it is only in SSDT-6.dsl, so when i try to call from INI to OFF it gave me this error:

What I need to do? @RehabMan
Thank you!

 

[teachme1967]

Delete all files from EFI/Clover/ACPI/origin. Re-do the extract with Clover F4.

I did exactly what you said ... the result is in attached origin.zip

However, when I ran patchmatic I noticed the following:

- in extract: only DSDT, SSDT, SSDT1 SSDT2, SSDT3 & SSDT4 are loaded by patchmatic
- in CLOVER/ACPI/origin: there is no (SSDT) file extracted while DSDT, and all SSDT files (0-8) are extracted by CLOVER F4 method

- I noticed also in CLOVER/ACPI/origin, some SSDT files has (x) as part of the file name
example: SSDT-3x.aml, SSDT-4x.aml, SSDT-5x.aml & SSDT-x6.aml
does that have any significance ?!!!

 

[RehabMan]

I did exactly what you said ... the result is in attached origin.zip

_OFF is in DSDT.

There is no corresponding _INI, so just add one under _OFF:

Method (_INI) { _OFF() }

Your EC is named IEC. If you look at _OFF you will see EC related code (the call to SPIN)... That code will need to be moved to _REG as described in the guide.

However, when I ran patchmatic I noticed the following:

- in extract: only DSDT, SSDT, SSDT1 SSDT2, SSDT3 & SSDT4 are loaded by patchmatic
- in CLOVER/ACPI/origin: there is no (SSDT) file extracted while DSDT, and all SSDT files (0-8) are extracted by CLOVER F4 method

You should not expect the same files from patchmatic -extract as Clover F4.

- I noticed also in CLOVER/ACPI/origin, some SSDT files has (x) as part of the file name
example: SSDT-3x.aml, SSDT-4x.aml, SSDT-5x.aml & SSDT-x6.aml
does that have any significance ?!!!

Your question regarding dynamic SSDTs is answered in the guide: http://www.tonymacx86.com/el-capitan-laptop-support/152573-guide-patching-laptop-dsdt-ssdts.html

 

[RehabMan]

I'm trying to disable my gt610m on my lenovo g580 with el capitan, i searched for _INI and it is only in SSDT-6.dsl, so when i try to call from INI to OFF it gave me this error:
View attachment 182485View attachment 182486
What I need to do? @RehabMan
Thank you!

No idea.

You did not provide your native ACPI files. Post files from ACPI/origin (Clover F4 extract).

 

[teachme1967]

my disassembly log after fresh CLOVER F4 extraction has error:ACPI Error:

"[MPPC] Namespace lookup failure, AE_ALREADY_EXISTS (20141107/dswload-451)ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog (20141107/psobject-305)
Could not parse external ACPI tables, AE_ALREADY_EXISTS"

 

[RehabMan]

my disassembly log after fresh CLOVER F4 extraction has error:ACPI Error:

"[MPPC] Namespace lookup failure, AE_ALREADY_EXISTS (20141107/dswload-451)ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog (20141107/psobject-305)
Could not parse external ACPI tables, AE_ALREADY_EXISTS"

You forgot to remove duplicate SSDTs. Use 'ls -l *.aml' to find files with the same size. It will usually be the first dynamic SSDT. Remove it and then try disassembly again.

It is in the guide...

 

[Gabriele95]

No idea.

You did not provide your native ACPI files. Post files from ACPI/origin (Clover F4 extract).

I just patched SSDT-1 with:

into_all all code_regex Package\s+\(0x06\)\n.*\{\n(.*0x80000000.*\n){6}.*\} removeall_matched;

and SSDT-6 with:


into_all method label MXMX remove_entry;

and applied to DSDT and SSDT-6 GFX0 to IGPU and Brightness fix for HD3000/4000

and deleted from the folder where i have all my ssdt.dsl the dynamic file like ssdt3x,4x,5x

however my extract:
View attachment DSDT&SSDT.zip

 

[RehabMan]

I just patched SSDT-1 with:

into_all all code_regex Package\s+\(0x06\)\n.*\{\n(.*0x80000000.*\n){6}.*\} removeall_matched;

and SSDT-6 with:


into_all method label MXMX remove_entry;

and applied to DSDT and SSDT-6 GFX0 to IGPU and Brightness fix for HD3000/4000

and deleted from the folder where i have all my ssdt.dsl the dynamic file like ssdt3x,4x,5x

however my extract:
View attachment 182511

I disassembled (per guide) with: iasl -da -dl -fe refs.txt *.aml

Applied "Remove _PSS placeholders" to SSDT-1.dsl
Applied "Fix/Cleanup Errors (SSDT)" to SSDT-6.dsl (comment or remove the Arg0 patch within).

No errors in the result.

 

[Gabriele95]

I disassembled (per guide) with: iasl -da -dl -fe refs.txt *.aml

Applied "Remove _PSS placeholders" to SSDT-1.dsl
Applied "Fix/Cleanup Errors (SSDT)" to SSDT-6.dsl (comment or remove the Arg0 patch within).

No errors in the result.

I did as you write, and got 0 error, tried to change from _INI to _OFF and the compiler windows won't show up, so i rewrote _INI and at the and i wrote _OFF (), but when i reboot i still see nvidia card. What I'm doing wrong? That's the only one _INI that i have in SSDT6.

 

[RehabMan]

I did as you write, and got 0 error, tried to change from _INI to _OFF and the compiler windows won't show up, so i rewrote _INI and at the and i wrote _OFF (), but when i reboot i still see nvidia card. What I'm doing wrong? That's the only one _INI that i have in SSDT6.
View attachment 182523View attachment 182524

Read post #1, "Problem Reporting".