[Guide] Lenovo IdeaPad 700 10.12.x

[HeRoKaNe]

I now have Sierra 10.12.5 & Windows 10 installed on the same drive. The SSD one. The boot is working fine and I can choose which OS I wanna boot into. Is thee a way to enable the discrete graphics card from the BIOS and disable it from the system itself so it's available when I boot in Windows.

 

[RehabMan]

I now have Sierra 10.12.5 & Windows 10 installed on the same drive. The SSD one. The boot is working fine and I can choose which OS I wanna boot into. Is thee a way to enable the discrete graphics card from the BIOS and disable it from the system itself so it's available when I boot in Windows.

https://www.tonymacx86.com/threads/guide-disabling-discrete-graphics-in-dual-gpu-laptops.163772/

 

[soto2080]

https://www.tonymacx86.com/threads/guide-disabling-discrete-graphics-in-dual-gpu-laptops.163772/

I looked into acpi tables for disabling discrete graphics but found that all OFF method are inside a PowerResource macro.
What should I do?

 

[RehabMan]

I looked into acpi tables for disabling discrete graphics but found that all OFF method are inside a PowerResource macro.
What should I do?

Read FAQ, "Problem Reporting"
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[soto2080]

Read FAQ, "Problem Reporting"
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[RehabMan]

...

Your ioreg shows no Nvidia device on the PCI bus.
Either your laptop doesn't have it, or you have mistakenly disabled it in BIOS.
Without it present, no surprise you don't find the corresponding _OFF method in the extracted ACPI set.
Must extract ACPI with the hardware present and enabled.

 

[soto2080]

Your ioreg shows no Nvidia device on the PCI bus.
Either your laptop doesn't have it, or you have mistakenly disabled it in BIOS.
Without it present, no surprise you don't find the corresponding _OFF method in the extracted ACPI set.
Must extract ACPI with the hardware present and enabled.

Thank for your fast reply, I will try it at the weekend.

 

[soto2080]

Your ioreg shows no Nvidia device on the PCI bus.
Either your laptop doesn't have it, or you have mistakenly disabled it in BIOS.
Without it present, no surprise you don't find the corresponding _OFF method in the extracted ACPI set.
Must extract ACPI with the hardware present and enabled.

Open it in BIOS and show in Ioreg at PEG0, but _OFF methods are still all inside a PowerResource macro.

 

[RehabMan]

Open it in BIOS and show in Ioreg at PEG0, but _OFF methods are still all inside a PowerResource macro.

Wrong.
The _OFF method is clearly in SSDT-21.aml.

 

[soto2080]

Wrong.
The _OFF method is clearly in SSDT-21.aml.

Oops, I didn't notice there that are changes in numbers of ssdts.
It's seems that _OFF is not related to EC and can be disabled by your SSDT-Disable_DGPU.
Have it been disabled correctly?(Attachment is IOreg)