![]() ![]() ![]() There are thousands of such broken computers as this model was a lemon.Dear Darren, What I do in these cases is to perform the nvram command blindless making sure that you don't make any typo and bearing in mind that you will have to use the US keyboard layout (important if you have a foreign keyboard layout). Start in single super user mode. Just type de nvram command making sure that you made no typos. Reboot (enter) Make sure you press and keep pressed the shift key so next boot will be in safe mode. Use GPU fix daemon to make sure the nvram setting is always there and Radeon drivers are kept away. Decide whether you would preferably update to Mojave or Catalina unofficially to have the system working only with Intel chipset if no video hardware acceleration needed, i.e. Kernel_task is sucking 600-700% cpu, and there is hardly enough left to spin the beach_ballĭefaults write "Apple Global Domain" NSSupportsAutomaticGraphicsSwitching -boolean 'false' I am currently "running" 10.8.5, having deleted ATISupport.kext, and AMDRadeonAccelerator.kext It should be able to run quite well by just using the Intel graphics. This computer is so close to being a real Mac. Intel HD Graphics 3000 (384MB) + AMD Radeon HD 6750M (1GB)ĪMDRadeonAccelerator.kextĚTI2400Controller.kext ATI4800Controller.kext ATIFramebuffer.kext ATIRadeonX2000VADriver.bundleĪMDRadeonVADriver.bundleĚTI2600Controller.kext ATI5000Controller.kext ATIRadeonX2000.kext ATISupport.kextĪMDRadeonX3000GLDriver.bundleĚTI3800Controller.kext ATI6000Controller.kext uginĪMDRadeonX4000GLDriver.bundleĚTI4600Controller.kext ATI7000Controller.kext ATIRadeonX2000GLDriver.bundle It seems that I have found more reliable or permanent software solution allowing to disable discrete GPU and use mbp (mine is Mbp 8.3 early 2011, Yosemite) with broken discrete GPU (failing to boot) than gfxCardStatus 1.8-2.2.1, namely. #GFXCARDSTATUS MACBOOK PRO 2011 VIDEO FIX SOFTWARE# Apple has determined that a small percentage of MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts. ![]() Long story short, my 2011 macbook pro has the dreaded logic board issue. Please note that only source code is there so Xcode is requred to compile the binary. These MacBook Pro systems were sold between February 2011 and December 2013. Apple or an Apple Authorized Service Provider will repair affected MacBook Pro systems, free of charge. Whenever an app needs the discrete video card, it will reboot. ![]() I have to reset the pram, smc, try to go into internet recovery mode, etc. The application runs from terminal, uses the same code as gfxCardStatus but writes the setting into NVRAM(PRAM) so machine remains switched to internal GPU on next boot(s)/wake(s). #GFXCARDSTATUS MACBOOK PRO 2011 VIDEO FIX CODE# This affected me toward the end of 2013, when my 17-inch 2011 MacBook Pro began showing small graphic artifacts. This saved me from frequent overheat shutdowns under blanket just to load the os (after overheat shutdown the system forcibly uses igpu but this state changes back after couple of boots so it becomes necessary to overheat again). #GFXCARDSTATUS MACBOOK PRO 2011 VIDEO FIX MAC OS X#Īt first, I figured the problem was related to pre-release versions of Mac OS X that I was testing for Apple. Unfortunately, the problems worsened, and by October 2013, my MacBook would work for only a short time before displaying a.
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