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Secondly, Logic board replacement is an expensive affair! Last option, of course, is to get a new MPB, but I wanted to wait till the WWDC June 2018 announcement.Īnyways, I still wanted to make sure that this is indeed the same GPU problem that I was facing. It had all the possibilities of appearing once more (even after changed GPU). I thought, if I could get Logic board changed, I should be okay, but in many forums many users who got that done were not still immune from that problem. The machine is a 15″ MBP 10,1 (mid-2012) with dual GPU system. I missed the replacement program (as I was not even aware that it existed until I hit this problem) and now my machine is out of warranty (more than 51/2 years now). So, I started Googling for this GPU Panic problem and found that many laptops had this issue and that many forums said it was all due to a faulty discrete GPU on the logic board.
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Kernel Extensions in process name corresponding to current thread: kernel_task Panic(cpu 2 caller 0xffffff7f916c29cf): "GPU Panic: mux-regs 4 0 a0 99 0 8 severity 3 WS-ready 1 switch-state 3 IG FBs 1 EG FBs 0:0 power-state 3 3D idle HDA idle : AGC GPU REGISTER RESTORE FAILED : rdar://7254528, VendorID (CPU 2), Frame : Return Address Sometimes, upon restarting the first problem message that I got was GPU panic like the one shown below:Īnonymous UUID: 32BD6DA8-14C2-38AD-E466-F3B6DDCE6F7F But as soon as, I started using it, all of a sudden it would show a Black Screen, but CAPS LOCK would still glow green and so I would then reboot it again, only to Black screen. I got my MacBook cleaned and then it booted fine. I tried all that, but it refused to work. I started asking myself why would this happen? Was it due to upgrade to High Sierra 10.13.3 or was it that my machine really developed some hardware problem? I asked a friend of mine what can I do and he suggested SMC Reset followed by PRAM (NVRAM) Reset. After that, many times I would boot straight into Black Screen, and the only sign that the machine was awake could be just tested by pressing the CAPS LOCK key (turns on the button-light) or connecting an External USB with a indicator light. Unfortunately, that started to be an issue with 10.13.2 Supplement and 10.13.3 - so I had to find a way to APFS before I could get to the latest patches.It all started when my MacBook Pro showed me black screen after waking from sleep. I suspect the SSD I have installed was recognized as a hybrid drive when I did the original High Sierra upgrade, so it left it as HFS+ instead of migrating to APFS. Everything seems to be working ok and hopefully now it will move on normally. My machine now shows that it is on 10.13.3 and that the SSD is formatted as APFS.
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create a bootable USB that I could install High Sierra 10.13.3 from.We shall see if it takes future updates okay. So.I was ultimately able to get my machine to 10.13.3.