![]() The procedure described in the steps 1-3 worked for me until macOS Sierra, but with the upgrade to High Sierra, I started getting a pinkish/reddish screen and I was unable to enter Recovery mode to repeat step 3 as I had to do in previous upgrades. You can permanently disable discrete graphics card following next steps: UPDATE! Try to edit NVRAM variable from Single-User mode Is that true? And if yes, how to do that? I heard that the same EFI setting is responsible for not even showing the integrated GPU to other operating systems than macOS and you have to trick it somehow to think it's macOS. If I disable the discrete GPU from EFI, will macOS think that the integrated GPU is the one installed and will it let me use multiple monitors with it? If you force integrated graphics in GfxCardStatus, Mac OS X (up to Yosemite at least) doesn't allow you to use multiple monitors (even though the built in Iris Pro can do it). The question is basically whether the command mentioned in GfxCardStatus github issue comment here is correct or not, and how to undo it if it doesn't work.Īn answer to this alone is a correct answer, but it'll be awesome if you can also tell me: I'd also want to know how to undo it if needed. I assume this is persistent across multiple reboots. How can I disable the discrete GPU from EFI? I know I can use GfxCardStatus but I read I could have a more permanent solution by changing some EFI flag. PURPOSE AND NONINFRINGEMENT.I'd like to disable the NVidia GTX 750M GPU on my MacBook Pro 15" (Retina, Mid 2014, Mac OS X 10.10 Yosemite). INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, ![]() The above copyright notice and this permission notice shall be included in allĬopies or substantial portions of the Software. The Software, and to permit persons to whom the Software is furnished to do so, Use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of Software without restriction, including without limitation the rights to This software and associated documentation files (the "Software"), to deal in the Permission is hereby granted, free of charge, to any person obtaining a copy of (Warning: this also resets your EFI boot configuration) License:Ĭopyright (C) 2014-2016 Bruno Bierbaumer, Andreas Heider, Malte Bargholz If you are facing weird problems a NVRAM reset could help: MacBook Pro 8,2 (Late 2011, Non-Retina).MacBook Pro 5,2 (Early 2009, Non-Retina).Otherwise you will end up with a powered-down integrated graphics card and a black screen. You can enable it by setting the spoof_osx_version option in your nf. Recent versions of rEFInd have the "apple_set_os" hack built-in. REFInd version 0.10.0 or above (recommended): So to use the Intel GPU, you need to trick the EFI by using the "apple_set_os" hack either with: switch to the dedicated GPU: dedicated.batīy default the Intel GPU gets switched off by the MacBook Pro 11,3's (and 11,5's) EFI if you boot anything but OS X.switch to the integrated GPU: integrated.bat.Run the provided scripts by right click "Run as administrator" and rebooting your machine:.Windows is using the MacBook's UEFI mode ( how to check).install_hooks.sh can be used to install Login Hooks to automate the swichting process for login/logout. gpu-switch -d enable automatic GPU switching: ![]() gpu-switch -i switch to the dedicated GPU: OS X can switch between the GPUs without having to reboot the MacBook: switch to the integrated GPU: Linux Usage:Īs root you can select the GPU by running gpu-switch and rebooting your machine: switch to the integrated GPU: Therefore use it at your own risk and don't blame us if anything breaks. This is new code and it comes without any warranty! It's completely based on reverse engineering. It aims to remove the need of booting into OS X and running gfxCardStatus v2.2.1 to switch to the integrated card. Gpu-switch is an application to switch between the integrated and dedicated GPU of dual-GPU MacBook Pro models for the next reboot.
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