These solutions, however, doesn't explain why some MBPs of the same model numbers do not exhibit the shutdown problem, or why it doesn't occur under Bootcamp Windows, or why zapping the NVRAM/PRAM doesn't solve the issue. I also discovered deleting the Thunderbolt Ethernet Adapter profiles as well as any associated NVRAM variables also resolves the issue without disabling the drivers. If you’re getting a proper kernel panic, then you’re having a completely different problem.Īs already mentioned, you can solve this issue by simply disabling or deleting the AppleThunderboltNHI.kext. It is silent and strikes without logs or error messages, leaving you completely baffled as to the cause. This is one of the most evil crashes I’ve ever encountered and behaves not unlike a virus. My macbook will only run for about 10 seconds without an external display before the screen goes black and the keyboard lights and fans stay on then turns off.Īfter speeding way too much time on this issue, I discovered the source of the problem.
Nothing but disconnecting the external display seems to trigger it to happen. I've troubleshooted the SMC, reinstalled OSX, tried it in safe mode (Which worked), tried a new user account, disconnected everything one by one to see whether something triggers it. Great! Or so i thought until the other evening when i removed my laptop from my desk and tried using it elsewhere. Connected to an external display with a keyboard and mouse.
#Mac extended display emulator pro#
Since then I've been using my macbook pro as a desktop.
#Mac extended display emulator mac#
I took my mac apart and saw that the heatsink wasn't looking too great so i decided to change it just incase that was the problem.Īfter fitting the new heat sink the problem went away. It kept on doing this so i did a bit of googling and thought it may of been the heatsink not keeping the CPU cool enough so it went into protect mode and shut down. Hi, this is my first post on ifixit so bare with me.Ībout a couple of months ago i was away from home and my Macbook randomly shut itself down.
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