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[Guide] Disabling discrete graphics in dual-GPU laptops

Mikael25 said:
Hello RehabMan

I followed the guide and was able to switch-off the Nvidia card. However, now I have sleep /wake issues.
My laptop screen switches off as soon as I click on  -> Sleep
But in reality it never goes into sleep as there is keyboard light still on. When I press any key, the screen doesn't switch on anymore and the only way to get out of this is to keep pressing the power button until it reboots.

Attached are the files for your reference.
Files attached:
  1. Clover.zip - Removed the themes directory to reduce the size.
  2. IOReg (MacBook9.1.zip)
  3. Origin directory zipped
  4. RehabMan.zip (from Patchmatic).
Appreciate if you could have a look and tell me what I need to put in _PTS and _WAK (I already have _ON() called in _PTS() and _OFF() called in _WAK()).

Output from kextstat|grep -y acpiplat

13 2 0xffffff7f8278e000 0x66000 0x66000 com.apple.driver.AppleACPIPlatform (4.0) A29C7512-D3A8-3AED-9721-3A5FF1A32EB2 <12 11 7 6 5 4 3 1>

Just in case my profile doesn't have proper info:

Laptop - Asus Zenbook UX303UB
CPU - Intel Core i5 6200U
Graphics - Intel HD 520
Nvidia GeForce 940M (2GB)

PS: I use a USB for wifi and I have tried removing it before clicking on Sleep. It hasn't worked.

Thanks for all your help in this community.

Cheers,
Click to expand...

You forgot to press F4 to capture native ACPI files in ACPI/origin.
Read post #1, "Problem Reporting". Carefully.
If the files in origin.zip are representative of the files that should have been provided at ACPI/origin in Clover.zip, then it is clear you have the wrong files in ACPI/patched.
Based on origin.zip, you should have in ACPI/patched:
DSDT.aml
SSDT.aml (ssdtPRgen.sh)
SSDT-0.aml
SSDT-1.aml
SSDT-2.aml
SSDT-3.aml
SSDT-4.aml
SSDT-12.aml
SSDT-13.aml
 
RehabMan said:
You forgot to press F4 to capture native ACPI files in ACPI/origin.
Click to expand...

Hi RehabMan, Thank you for looking at the files. I didn't forget to press F4 on Clover screen. It's an activity I often do to work on the files.

RehabMan said:
Read post #1, "Problem Reporting". Carefully.
If the files in origin.zip are representative of the files that should have been provided at ACPI/origin in Clover.zip, then it is clear you have the wrong files in ACPI/patched.
Based on origin.zip, you should have in ACPI/patched:
DSDT.aml
SSDT.aml (ssdtPRgen.sh)
SSDT-0.aml
SSDT-1.aml
SSDT-2.aml
SSDT-3.aml
SSDT-4.aml
SSDT-12.aml
SSDT-13.aml
Click to expand...

The files I have uploaded in origin.zip are the ones I got after pressing F4 in /Volumes/EFI/ACPI/Origin directory.

Yes I had all files in there but now I removed the dynamic files and only have
DSDT.aml
SSDT.aml (ssdtPRgen.sh)
SSDT-0.aml
SSDT-1.aml
SSDT-2.aml
SSDT-3.aml
SSDT-4.aml
SSDT-12.aml
SSDT-13.aml

However, could you tell me what is missing in DSDT that needs to be fixed to ensure Nvidia GPU is switched on before sleep i.e. in _PTS().

Thanks for all your help.

Cheers.
 
Hello,
I tried different methods off the Nvidia, but nothing helped
Laptop
FIXED, I duplicated two brightness patch in DSDT and SSDT-9.
Asus ROG G750JS (G750JS-T4052H)
Intel Core i7-4700HQ
nVidia GeForсe GTX 870M
 

Attachments

  • AsusRog750.zip
    10.6 MB · Views: 81
Last edited:
Mikael25 said:
Hi RehabMan, Thank you for looking at the files. I didn't forget to press F4 on Clover screen. It's an activity I often do to work on the files.
Click to expand...

You did not. If you look at the files in Clover.zip, there are no files in ACPI/origin.

The files I have uploaded in origin.zip are the ones I got after pressing F4 in /Volumes/EFI/ACPI/Origin directory.
Click to expand...

The request was not to remove them from EFI/Clover/ACPI/origin and place them in a separate ZIP.

However, could you tell me what is missing in DSDT that needs to be fixed to ensure Nvidia GPU is switched on before sleep i.e. in _PTS().
Click to expand...

Not all computers need that. You should do it only if you have issues on sleep/wake.
It is covered in post #1.
 
vitaliy.yy said:
Hello,
I tried different methods off the Nvidia, but nothing helped
Laptop
FIXED, I duplicated two brightness patch in DSDT and SSDT-9.
Asus ROG G750JS (G750JS-T4052H)
Intel Core i7-4700HQ
nVidia GeForсe GTX 870M
Click to expand...

Problem is obvious. If you disassemble your files in ACPI/patched, iasl is telling you what the problem is.
Try it for yourself (from ACPI/patched):
iasl -da -dl *.aml
 
My INI method was located in SSDT-6 and it is identical to the example. My OFF method which is not in a PowerResource macro was located in SSDT-8. I patched SSDT-6 according to "Disable from _INI (SSDT)". The OFF method in SSDT-8 did not include an EC access (just a bunch of store lines). I assumed that there is no need to patch anything else (such as DSDT). My discrete graphics card did not get disabled. Did I do anything wrong? Since the OFF method didn't include an EC access, is that the case that the OFF method is empty (for older laptops)?
 
Hello, i extracted my ssdts by Clover but some ssdts in #1 i don't have and vice versa, so how can i patch each ssdt.
 

Attachments

  • origin.zip
    72.9 KB · Views: 77
RehabMan said:
You did not. If you look at the files in Clover.zip, there are no files in ACPI/origin.



The request was not to remove them from EFI/Clover/ACPI/origin and place them in a separate ZIP.
Click to expand...

Hello RehabMan, I have zipped the entire Clover folder without separating origin directory. I would appreciate if you could have a look. I have been following this guide for last 3 months and have tried many things only after which I asked for help.

RehabMan said:
Not all computers need that. You should do it only if you have issues on sleep/wake.
It is covered in post #1.
Click to expand...

I did come to this post because my computer has problems with the sleep/wake. I think I am missing something which is either unique to this optimus set-up or something in the code itself.

Thanks for all your support and directions :)
 

Attachments

  • Clover.zip
    2.9 MB · Views: 71
Blackeye42 said:
My INI method was located in SSDT-6 and it is identical to the example. My OFF method which is not in a PowerResource macro was located in SSDT-8. I patched SSDT-6 according to "Disable from _INI (SSDT)". The OFF method in SSDT-8 did not include an EC access (just a bunch of store lines). I assumed that there is no need to patch anything else (such as DSDT). My discrete graphics card did not get disabled. Did I do anything wrong? Since the OFF method didn't include an EC access, is that the case that the OFF method is empty (for older laptops)?
Click to expand...

Read post #1, "Problem Reporting".
 
HungLM96 said:
Hello, i extracted my ssdts by Clover but some ssdts in #1 i don't have and vice versa, so how can i patch each ssdt.
Click to expand...

Nothing unusual here.
_OFF is in SSDT-14, so is associated _INI. Call _OFF from the _INI.
 
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