- #Graphics card for mac os sierra update
- #Graphics card for mac os sierra full
- #Graphics card for mac os sierra pro
- #Graphics card for mac os sierra code
Then the Apple-logo appeared like the first time with stripes BUT the bar continued until the end. The starting bar stopped also like before at about half or two thirds and the mac started a second time by itself. Then I typed „reboot“ and - without any key-pressing - it made the Apple-logo appear with stripes like before.
#Graphics card for mac os sierra code
ME IS: MacBook Pro, Early 2011, 15-inch, A1286, i7, 2,0GHz, 4 GB, HDD 1GB, GPU AMD Radeon HD 6490M, macOS Sierra 10.12.6.įrom starting with the code „Boot up holding down Command + R + S“ until „csrutil enable“ everything worked as written in the text. The keyboard also changed from German to English typing. RESULT: For me it worked too! It felt like a „flight at night“ because the stripes on the screen made it difficult to read my own typing and the macs responses. GRATITUDE: At first I want to thank the author Carlos for presenting this solution! Otherwise you will lose control of brightness. The AMD6000Controller.kext has the dependent kexts: AMDLegacySupport.kext and AMDLegacyFramebuffer.ĪMD6000Controller.kext, AMDLegacySupport.kext and AMDLegacyFrameBuffer.kext must be inside the /System/Library/Extensions directory to be loaded at boot time. The AGDCBacklightControl.kext is connected to the AMD6000Controller.kext. In the High Sierra (10.13) the brightness control is done by AGDCBacklightControl.kext.
#Graphics card for mac os sierra pro
Resolved Disable a failed AMD GPU on a 2011 MacBook Pro Įxplanation about Brightness Control in High Sierra (10:13) with the Macbook Pro 2011:
#Graphics card for mac os sierra update
Shutdown or Restart Macbook Pro - avoid black screen freeze - Update 2 - #1425Ĭlose the Lid - Sleep - Waking - #1066 - #1243 Alternative 2 - Power Off failure AMD GPU: Rename old AMDRadeonX3000.kext and move new AMDRadeonX3000.kext after update - #1425 = NEWS ! YOU COULD ALSO FOLLOW THESE GUIDES FOR THE EXTRA IMPROVEMENTS : =įollow the MikeyN Guide - page 35 - #875 - to move the AMDRadeonX3000.kext from the /System/Library/Extensions directory and do not freeze Macbook Pro (at 75% progress bar or "IOConsoleUsers: gIOScreenLockState 3" message). Resolved Force 2011 MacBook Pro 8,2 with failed AMD GPU to ALWAYS use Intel integrated GPU (EFI variable fix): Alternative 1 - Power Off failure AMD GPU: 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.
#Graphics card for mac os sierra full
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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