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User profile for user: MaritMonkey
MaritMonkey Author
User level: Level 1
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Internet recovery completed but didn't fix anything. What's my next step?

My MBP had been showing some funny graphics artifacts when switching cards (when I lauched a graphics-heavy game) so I unchecked the box, forcing it to use the NVIDIA card all the time. It worked great for a couple days, but this was apparently a bad idea.


About two days later, my screen went all wonky blue-with-lines and I had to hold-power-button shutdown. On restart the apple logo with loading icon appeared, but then the screen just went grey and stayed that way with the fan running on "seek and destroy" until I felt bad and shut it off again.


Tried safe mode startup (same thing happens), reset PRAM (same thing happens), tried cmd-R booting from the recovery drive but that didn't even get to the startup noise, turned to internet recovery and the progress bar finished loading (after about an hour) but then it immediately restarted and went back to screen=grey, fans=full blast.


The HDD works fine as a target drive so I was able to make sure my backup was up to date, but I don't have Lion on a USB and am really not sure what to do now.


It boots up on single user mode ... is there any way to tell it there to use the intel graphics card?


<Personal Information Edited by Host>

MacBook Pro, Mac OS X (10.7)

Posted on Aug 7, 2013 10:47 PM

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User profile for user: Kurt Lang
Kurt Lang
User level: Level 9
58,152 points

Posted on Aug 8, 2013 7:01 AM

Not sure what you mean by switching graphics cards when the device only has one to start with. But with the graphics distortions you're seeing, I would highly suspect faulty hardware. Bring it in to an Apple Store to confirm. If it's still under warranty, they'll either repair, or replace the Mac.


I've asked the hosts to remove the link to your screen shot. It shows information that shouldn't be shared.

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User profile for user: Kurt Lang
Kurt Lang
User level: Level 9
58,152 points

Aug 8, 2013 7:01 AM in response to MaritMonkey

Not sure what you mean by switching graphics cards when the device only has one to start with. But with the graphics distortions you're seeing, I would highly suspect faulty hardware. Bring it in to an Apple Store to confirm. If it's still under warranty, they'll either repair, or replace the Mac.


I've asked the hosts to remove the link to your screen shot. It shows information that shouldn't be shared.

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User profile for user: MaritMonkey
MaritMonkey Author
User level: Level 1
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Aug 8, 2013 7:57 AM in response to Kurt Lang

First, thank you for the edit.


I'm sure it has two cards, though. I checked to see which one said "display connected" before I clicked the "Automatic Graphics Switching" box. (I may have posted this in the wrong place?)


EDIT: I have an appointment on Saturday but it's well out of warranty so reaaally had my fingers crossed it wasn't a hardware issue or there'd be something I could do to just tell it to use the other (I assume working) graphics card.

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User profile for user: Kurt Lang
Kurt Lang
User level: Level 9
58,152 points

Aug 8, 2013 8:16 AM in response to MaritMonkey

The automatic graphics switching tells the OS to automatically disable some graphics functions when it can to save on battery life, but it's still just one video card.

but it's well out of warranty so reaaally had my fingers crossed it wasn't a hardware issue

Ouch! Well, here's hoping, but with a freshly installed OS, it's not looking good as being a simpler software issue.

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Internet recovery completed but didn't fix anything. What's my next step?

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