![]() The connection of an external display must be made via the USB port. When you do the gpu-power-prefs for the Intel GPU, then you lose the Thunderbolt port. ![]() The MacBook Pro 2011 Thunderbolt port is directly wired to the AMD GPU. If you are in the Single User Mode (press Command + S at boot), then you do not need the sudo command before the nvram command.Ģ - Move the AMDRadeonX3000.kext (see the MikeyN Guide).ģ - Load the AMDRadeonX3000.kext after login so as not to freeze the Macbook Pro 2011 (see the MikeyN Guide). ![]() Macbook Pro 2011 with an AMD GPU with problems: Macbook Pro 2011 freezes on the gray screen due to AMDRadeonX3000.kext. ![]() Nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%00ĪMD6000Controller.kext - full power AMD GPU - increases temperature and decreases battery life.ĪMDLegacySupport.kext and AMDLegacyFrameBuffer.kext are dependencies of the AMD6000Controller.kext.ĪMDRadeonX3000.kext - Power off AMD GPU - lowers the temperature and increases battery life -> System Preferences -> Energy Saver -> enable Automatic Graphics Switching. Pro 2011 with AMD GPU running properly - gpu-power-prefs to AMD GPU (default) - gpu-power-prefs=%00%00%00%00:
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