On the screen that loads choose a language then on the screen which appears next choose the following options in the menu Utilities -> Terminal - see below. Now reboot into Recovery mode using CMD + R. The terminal will now be on the screen.įirst input. So first reboot your Macbook Pro into single user mode by holding down the CMD + S keys. But I had two problems - I had no permissions when trying to disable the csrutil and when trying the same with Recovery Mode - CMD + R I had the blue lines on black screen appearing, but the below sorted it for me. Now there are other solutions that say at first boot into Recovery Single User Mode - CMD + R + S. The solution is to change your energy settings and make sure the screen saver animation options are always active. NOTE: One known issue to this solution (and maybe others) is that when the screen goes to sleep/black it no longer wakes up, therefore needing a forced reboot. Now there are several solutions on the web but this is the only one that worked for me running macOS High Sierra (10.13.6+) and what was worst for me is that the MacBook Pro was stuck in looping reboot. What Linux distribution/USB prep tool should I be using? Mind you, I don't need to boot into a graphical Linux, just the command line is good enough and less likely to hit the GPU issue.If you are suffering from the infamous blue lines on the black screen on startup or random reboots then you maybe suffering from an AMD graphics card hardware issue with your later 2011 Macbook Pro laptop. Boot my Mac from a bootable Linux USB, mount the HD and move those AMD*.kext using Linux, thereby forcing use of the Intel graphics?Īnyone have any experience doing such a thing? A particular challenge I have is that I'd have to prep the bootable USB from a Windows or Linux machine, as my Mac is stuck in single-user mode.(as far as just the SIP issues goes: is correct: Cmd + R + S, at least on Sierra, gets you recovery and single user and you can csrutil disable from there).
which fails because it is a graphical environment and I have a failing GPU. SIP can only be disabled in Recovery mode. crutils disable, to disable SIP, won't work in Single User mode. Unfortunately, the System/Library/Extensions directory fall under Sierra's SIP protection so I can't carry out those instructions.Basically, boot into Single User mode and move some of AMD*.kext files from /System/Library/Extensions/ elsewhere. You can revert to using just the internal Intel graphics. My local repair shop, which is usually pretty handy, says it can't fix it. This has been a known problem, and Apple addressed with an extended warranty on these models's GPUs, which ended Dec 31st 2016. This is what I understand from my research: My trusty MBP 17" 2011 is now hitting the failing AMD GPU issues.
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