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Mac OS X forum: Black screen after lion install

by: davina85 March 30, 2012 3:22 AM PDT

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Black screen after lion install

by davina85 - 3/30/12 3:22 AM

ive installed OS Lion (10.7) on my MB Pro 17" 2.5ghz Intel Core 2 Duo (NVIDIA ge Force 8600M GT 512mb.

when it starts comes up with normal apple logo grey screen but then turns to black screen. If you look closely enough you can see the screen but very hard. If you close the screen then reopen it comes back to normal.

I have erase HD and reinstall and run disk Persmission and verify disk no problems found. Cant stop this happening there is obviously an issue with the the computer and running Lion does anyone know anything??

Have tried to reinstall from website/ apple usb no luck still


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Your system

by Jimmy Greystone - 3/30/12 6:36 AM

In Reply to: Black screen after lion install by davina85

Your system is subject to a recall regarding issues with the GPU. So first thing I'd do is take it somewhere and have them run the GPT diagnostic test on it. If it fails, free logic board replacement for you. If it passes (and make sure they run the EFI and OS level tests) then I would start by resetting the PRAM and SMC.


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