Graphics Switching

[jadevjs]

I have an i7 - 3770 and a Nvidia 560 Ti running perfectly as a dual boot on Sierra & Win X. However, as my graphics card doesn't support metal I unable to upgrade Sierra. Is there a way for me to use the internal GFX for Sierra and the external GFX for windows, without having to remove the card everytime I switch.
My mobo is an Asrock H77.

Also will Netflix and Prime video work on my internal GFX
Thank You in advance

 

[fcgdaeb]

I think you can achieve this with SSDT and DSDT patching, to use the _OFF method of your external card.

 

[jaymonkey]

Is there a way for me to use the internal GFX for Sierra and the external GFX for windows, without having to remove the card everytime I switch.

@jadevjs,

You can disable the Nvidia card in MacOS Mojave by using this method :-

RehabMan SSDT trick used to disable unsupported Nvidia and keep it in pcie slot while using Mojave

For people like me who want to keep their unsupported videocard in pcie slot 1 (or 2, or 3, I suppose) while testing Mojave with a second supported videocard in another pcie slot (or integrated igpu), take a look at @RehabMan Guide : [FIX] "Window Server Service only ran for 0 seconds" with...

www.tonymacx86.com

Or you can use the WhatEverGreen boot argument -wegnoegpu

Both methods will achieve what you want, but since you will probably need Lilu + WhatEverGreen to configure your IGPU the second method is probably the way to go.

Cheers
Jay

 

[jadevjs]

@jaymonkey - Thank you.
I think pre-maxwell cards are supported on Mojave 10.14 - so weirdly, everything works normally on my 560Ti albeit without acceleration (which is annoying).

For the switching (-wegnoegpu), do I need to run two HDMI cables - one on the IGPU and one on the DPGU? Is it possible to use IGPU through the DGPU?

Thanks again

 

[jaymonkey]

For the switching (-wegnoegpu), do I need to run two HDMI cables - one on the IGPU and one on the DPGU? Is it possible to use IGPU through the DGPU?

@jadevjs,

Mojave only natively supports Nvidia Kepler GPU's based GPU's your GTX 560 Ti is a Fermi based GPU so it will not work.

It is not possible to passthrough the IGPU via the dGPU so you will need to connect to your monitor(s) with two cables, or move them from the dGPU to the IGPU.

Don't forget to make sure that your physical motherboard monitor connectors (HDMI, DP..etc) match those of the IGPU framebuffer you use (HD 4000 i assume). Use this guide to install and configure Lilu + WhatEverGreen for the IGPU :-

An iDiot's Guide To Lilu and its Plug-ins

An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...

www.tonymacx86.com

And this guide to configure the framebuffer ports (also linked in the above guide) :-

[GUIDE] General Framebuffer Patching Guide (HDMI Black Screen Problem)

General Framebuffer Patching Guide using Hackintool Please do not quote this guide in its entirety. Post a link instead. 15 Jan 2019: Intel FB-Patcher has been renamed to Hackintool. 19 Jan 2019: Guide overhauled. Please be aware of possible HDMI hot-plug issues. After boot you may have to...

www.tonymacx86.com

Cheers
Jay

 

[Jamesbond007]

Mojave supports Nvidia Fermi GPUs based on the GF100 chip

Really supported? Those cards don't have Metal support right? So even if there is display in Mojave there will be no graphics acceleration as stated by the OP. Is Mojave usable in such a situation?

 

[jaymonkey]

Really supported? Those cards don't have Metal support right?

@Jamesbond007,

Opps ... Sorry i was getting Kepler mixed up with Fermi .... not enough coffee or brain fade

Have annotated last post ....

Cheers
Jay

 

[jadevjs]

Thanks guys.. Cheers