start up with black screen
I have MacBook Pro 17 “ early 2011 starting up but display is black, notice, and gpu is no working
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Hi
The reason why the screen is black is because the gpu isn’t working
Because the gpu isn’t working there will be no data telling the display to turn on and display a image
Hopefully this answers your question
Thanks:)
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These 2011 MacBook Pros (17” and 15”) have known GPU defects that will cause various issues such as no display, artifacts, blank grey screen after Apple logo and lines on the screen. In order to fix this, you will either need to find somebody who can solder a new GPU, or find somebody who will do the DeMux mod (such as this send-in: https://doslabelectronics.com/Demux) in order to disable it and use Intel HD 3000. Since it’s a 17” it still has quite a bit of value, so if you go the DeMux route I wouldn’t worry too much about putting in more money than its worth, plus with this method you can use dosdude1’s Catalina Patcher or OpenCore Legacy Patcher to run Catalina or Big Sur.
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