Apple had two recalls for this issue. This problem started a few years back. 2011 Macbook Pro both 15 and 17 inch have known issue due to a third party part. 2011 macbook pro graphics card fix.It is impossible to use the newer GPU on the old logic board without radically altering the logic board design. This MacBook Pro 2011 GPU fix is to replace the AMD graphics chip. In the case that you want to have your graphics card repaired professionally, it might cost you: most graphics cards range.Option 1: MacBook Pro 2011 Graphics Card Replacement. We offer a permanent graphics card fix for this issue.Pro 2011 with AMD GPU running properly - gpu-power-prefs to AMD GPU (default) - gpu-power-prefs=%00%00%00%00:Professional MacBook Pro GPU Repair. Outside Apple, there are several temporary solutions.The keyboard also changed from German to English typing. Otherwise you will lose control of brightness.GRATITUDE: At first I want to thank the author Carlos for presenting this solution!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. Alternative 1 - Power Off failure AMD GPU:Resolved Force 2011 MacBook Pro 8,2 with failed AMD GPU to ALWAYS use Intel integrated GPU (EFI variable fix):= NEWS ! YOU COULD ALSO FOLLOW THESE GUIDES FOR THE EXTRA IMPROVEMENTS : =Follow 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).Rename old AMDRadeonX3000.kext and move new AMDRadeonX3000.kext after update - #1425Shutdown or Restart Macbook Pro - avoid black screen freeze - Update 2 - #1425Close the Lid - Sleep - Waking - #1066 - #1243 Alternative 2 - Power Off failure AMD GPU:Resolved Disable a failed AMD GPU on a 2011 MacBook Pro Explanation about Brightness Control in High Sierra (10:13) with the Macbook Pro 2011:In the High Sierra (10.13) the brightness control is done by AGDCBacklightControl.kext.The AGDCBacklightControl.kext is connected to the AMD6000Controller.kext.The AMD6000Controller.kext has the dependent kexts: AMDLegacySupport.kext and AMDLegacyFramebuffer.AMD6000Controller.kext, AMDLegacySupport.kext and AMDLegacyFrameBuffer.kext must be inside the /System/Library/Extensions directory to be loaded at boot time.
![]() Graphics Card 2011 Pro Graphics CardThan press Cmd+Option+p+r wait for two chimes.Now everything is reset (Dont worry you wont lose any files)Now force shutdown by holding power and restart into single user mode (Cmd+s)*Now mount root portion writable. Press leftshift+control_(NOT COMMAND)_option+powerRelease at the same time. Now it's stuck like that :-/Hello there! I had the exact same problem and my solution would be to restart the whole procedure here's what i do.Start by resetting all hardware settings i.e your speakers, brightness, audio, everything. Gopro video edit for macBrightness keys should be working! HOW TO PREVENT FOR THE FUTUREDONT FREAK OUT if you see a black box around it ITS TOTALLY NORMAL it should look like the picture attatched belowIn your terminal you want to type #/bin/sh sudo nvram boot-args="-v" sudo nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00 exit 0 sudo chmod a+x /iGPU-boot.sh(The name is blacked out for privacy reasons)Now any time you have any problem with booting up simply reboot into single user mode type mount -uw / or /sbin/mount -uw /Next we are going to move only One offending kext out of the way. Mv /System/Library/Extensions/AMDRadeonX3000.kext /System/Library/Extensions/Force the system to update its kextcache Touch /System/Library/Extensions/For the final time type nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00Enable verbose boot mode nvram boot-args="-v"And wait for it to start up. Mkdir -p /System/Library/Extensions-offNext we are going to move only One offending kext out of the way. Mount -uw / or (/sbin/mount -uw /)And make a kext-backup directory. At the top you will see a tab called _Utilities._from that click terminalInto terminal type the following csrutil disableThan once more disable dGPU on boot nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00On startup as soon as you see a white screen hold (Command+S)You should see white text on black screen.Now mount the root portion writable. Nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00After this to be safe temporarily disable Verbose boot nvram boot-args=""Now type reboot and when you see the white screen hold command+rYou might have to hold it for 5+ minutes it depends how badly your GPU is damaged.So after you get into recover mode your going to have to select language and than procede.
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