MacBook Pro GPU AMD Failure Method 1

MacBook Pro GPU AMD Failure Method 1

So a friend has an issue with an issue where his MacBook Pro late 2011 was not booting. Looking at the issue and finding information online, it turns out the AMD card seems to fail on MacBook Pros. But thankfully it can be programatically bypassed.

A lot of information I was finding insisted on using ArchLinux. I did get ArchLinux booting on a Surface Pro Virtual Box, but just couldn’t get it working on the Mac, it just kept either not recognising that boot media was inserted into the USB or CD drive. I also tried using Gentoo, but I couldn’t get passed the Grub.

But eventually I sussed it out.

This is a short video of what it was like, sped up, to what it looked like once it was up and running. When I first attempted to boot up before it failed it took six minutes to reboot, once the changes had been made it booted in less than a minute.

WARNING – these worked for me, they may not work for you, ensure you take a full back up before performing any of these tasks, the read only disk image will be faster, but the read-write is better, it still took me two days to perform a backup for a 500GB disk. If your Time Machine is available, use that. The author of CheekyFactor.com will not be held liable for loss of data or broken machines. Do not perform these tasks if you are a novice.

Boot up in single user mode by holding down Cmd S when you turn on your Mac, enter the following:

nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00

Turn on Verbose mode as default:

nvram boot-args=ā€-vā€

and type in:

reboot

The machine should now boot normally.

A few months later the same machine had the same issue, even having issues booting. So, after looking on Google, I found a new way of fixing the issue, hopefully it will be a more permanent fix, you can see how I did this over here.

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Gary