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cfbbaer Author

Level 1

2 points

GPU Panic - OSX 10.9 Mavericks - Macbook PRO 6,2

Hello there,

Since upgrading to Mavericks here is what happens:

I use my computer without any problems, leave, it goes to sleep. I come back, it wakes up for about 5 seconds and has a GPU Panic and reboots.

I've read about the GPU recall for the Mid-2010 Macbook Pro. But my computer is older than 3 years, so Apple won't take it.

I understand they were clear about the rules of the recall. But then again, If I found out I screwed up in my work, I'd try to fix it, despite of how long later the damage showed up.

Anyway, here are the specs of the computer and the crash log. Anyone has any ideas what could be causing it? I've done a clean install of Mavericks, and it didn't fix it.

Thanks!

Macbook Pro 6,2

15-inch, Mid 2010

2,66 GHz Intel Core i7

No upgrades, stock machine.

Tue Jan 7 15:39:48 2014

panic(cpu 0 caller 0xffffff7fa1961fac): "GPU Panic: [<None>] 3 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff80bee2b000 0x0a5480a2, D0, P2/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.12/src/Apple MuxControl/kext/GPUPanic.cpp:127

Backtrace (CPU 0), Frame : Return Address

0xffffff809b26aca0 : 0xffffff801f622f69

0xffffff809b26ad20 : 0xffffff7fa1961fac

0xffffff809b26adf0 : 0xffffff7fa001c53d

0xffffff809b26aeb0 : 0xffffff7fa00e8d9e

0xffffff809b26aef0 : 0xffffff7fa00e8dfc

0xffffff809b26af60 : 0xffffff7fa036d5be

0xffffff809b26b090 : 0xffffff7fa010cd41

0xffffff809b26b0b0 : 0xffffff7fa002308d

0xffffff809b26b160 : 0xffffff7fa0020bae

0xffffff809b26b360 : 0xffffff7fa00224d7

0xffffff809b26b430 : 0xffffff7fa0f7f27a

0xffffff809b26b510 : 0xffffff7fa0f7c601

0xffffff809b26b590 : 0xffffff7fa0f7d0cd

0xffffff809b26b610 : 0xffffff7fa0f7d954

0xffffff809b26b750 : 0xffffff7fa0f7e3e0

0xffffff809b26b880 : 0xffffff7fa0fafcb4

0xffffff809b26b8c0 : 0xffffff7fa0fb09dd

0xffffff809b26b900 : 0xffffff7fa0faa550

0xffffff809b26ba70 : 0xffffff7fa0faaecc

0xffffff809b26bac0 : 0xffffff7fa0fa6761

0xffffff809b26baf0 : 0xffffff7fa0fa1558

0xffffff809b26bb20 : 0xffffff7fa0f89e64

0xffffff809b26bb70 : 0xffffff801facccda

0xffffff809b26bb90 : 0xffffff801facd83e

0xffffff809b26bbf0 : 0xffffff801facb28f

0xffffff809b26bd40 : 0xffffff801f6b6008

0xffffff809b26be50 : 0xffffff801f626bb1

0xffffff809b26be80 : 0xffffff801f6139b5

0xffffff809b26bef0 : 0xffffff801f61e003

0xffffff809b26bf70 : 0xffffff801f6c921d

0xffffff809b26bfb0 : 0xffffff801f6f3e26

Kernel Extensions in backtrace:

com.apple.driver.AppleMuxControl(3.4.12)[A4934A66-0E30-36E9-984A-650481102449]@ 0xffffff7fa1954000->0xffffff7fa1966fff

dependency: com.apple.driver.AppleGraphicsControl(3.4.12)[661E3C87-5B97-3272-88FF-B9BA9B6E2 4ED]@0xffffff7fa194c000

dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f9ff24000

dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9fcba000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9ff78000

dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7fa194f000

com.apple.nvidia.classic.NVDAResmanTesla(8.1.8)[0A1B6F41-168D-307A-BABD-162F3B3 C2786]@0xffffff7f9ffcb000->0xffffff7fa023afff

dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9fcba000

dependency: com.apple.iokit.IONDRVSupport(2.3.6)[86BA68C6-18DD-30A1-ABF6-54597AD6C277]@0xff ffff7f9ffbb000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9ff78000

com.apple.GeForceTesla(8.1.8)[67BAF872-A238-3787-AB74-22297A51FE8F]@0xffffff7fa 0f4f000->0xffffff7fa1019fff

dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9fcba000

dependency: com.apple.iokit.IONDRVSupport(2.3.6)[86BA68C6-18DD-30A1-ABF6-54597AD6C277]@0xff ffff7f9ffbb000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9ff78000

dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.1.8)[0A1B6F41-168D-307A-BABD-162F3B3 C2786]@0xffffff7f9ffcb000

com.apple.nvidia.classic.NVDANV50HalTesla(8.1.8)[3666E0FC-87C7-3329-BD8C-2F1ADE D100A4]@0xffffff7fa0245000->0xffffff7fa04f1fff

dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.1.8)[0A1B6F41-168D-307A-BABD-162F3B3 C2786]@0xffffff7f9ffcb000

dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9fcba000

BSD process name corresponding to current thread: WindowServer

Mac OS version:

13A603

Kernel version:

Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64

Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393

Kernel slide: 0x000000001f400000

Kernel text base: 0xffffff801f600000

System model name: MacBookPro6,2 (Mac-F22586C8)

System uptime in nanoseconds: 3969403748229

last loaded kext at 87123221583: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7fa0517000, size 65536)

last unloaded kext at 265767993068: com.apple.driver.AppleUSBUHCI 650.4.0 (addr 0xffffff7fa080b000, size 65536)

loaded kexts:

com.squirrels.driver.AirParrotSpeakers 1.7

com.apple.filesystems.msdosfs 1.9

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AGPM 100.14.11

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleUpstreamUserClient 3.5.13

com.apple.GeForceTesla 8.1.8

com.apple.driver.AppleIntelHDGraphics 8.1.8

com.apple.driver.AppleHDA 2.5.2fc2

com.apple.driver.AppleMikeyDriver 2.5.2fc2

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.0f6

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AppleMuxControl 3.4.12

com.apple.driver.AppleLPC 1.7.0

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleMCCSControl 1.1.12

com.apple.driver.AppleIntelHDGraphicsFB 8.1.8

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.iokit.IOBluetoothSerialManager 4.2.0f6

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.driver.AppleIRController 325.7

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.AppleUSBCardReader 3.3.5

com.apple.iokit.SCSITaskUserClient 3.6.0

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.4.0

com.apple.driver.AppleFWOHCI 4.9.9

com.apple.driver.AirPort.Brcm4331 700.20.22

com.apple.driver.AppleAHCIPort 2.9.5

com.apple.driver.AppleUSBHub 650.4.4

com.apple.iokit.AppleBCM5701Ethernet 3.6.9b9

com.apple.driver.AppleUSBEHCI 650.4.1

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 2.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.0

com.apple.driver.AppleACPIEC 2.0

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 216.0.0

com.apple.nke.applicationfirewall 153

com.apple.security.quarantine 3

com.apple.driver.AppleIntelCPUPowerManagement 216.0.0

com.apple.AppleGraphicsDeviceControl 3.4.12

com.apple.kext.triggers 1.0

com.apple.nvidia.classic.NVDANV50HalTesla 8.1.8

com.apple.nvidia.classic.NVDAResmanTesla 8.1.8

com.apple.driver.DspFuncLib 2.5.2fc2

com.apple.vecLib.kext 1.0.0

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.0f6

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.iokit.IONDRVSupport 2.3.6

com.apple.driver.AppleGraphicsControl 3.4.12

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.AppleSMBusController 1.0.11d1

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.driver.IOPlatformPluginFamily 5.5.1d27

com.apple.driver.AppleHDAController 2.5.2fc2

com.apple.iokit.IOHDAFamily 2.5.2fc2

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.iokit.IOSurface 91

com.apple.iokit.IOGraphicsFamily 2.3.6

com.apple.iokit.IOSerialFamily 10.0.7

com.apple.iokit.IOBluetoothFamily 4.2.0f6

com.apple.driver.AppleSMC 3.1.6d1

com.apple.iokit.IOAudioFamily 1.9.4fc11

com.apple.kext.OSvKernDSPLib 1.14

com.apple.driver.AppleUSBMultitouch 240.6

com.apple.iokit.IOUSBHIDDriver 650.4.4

com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.0

com.apple.iokit.IOUSBMassStorageClass 3.6.0

com.apple.driver.AppleUSBMergeNub 650.4.0

com.apple.driver.AppleUSBComposite 650.4.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.0

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.6.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.0

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IO80211Family 600.34

com.apple.iokit.IOAHCIFamily 2.6.0

com.apple.iokit.IOUSBUserClient 650.4.4

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.driver.mDNSOffloadUserClient 1.0.1b4

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOUSBFamily 650.4.4

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 278.10

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.AppleKeyStore 2

com.apple.driver.DiskImages 371.1

com.apple.iokit.IOStorageFamily 1.9

com.apple.iokit.IOReportFamily 21

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 2.0

com.apple.iokit.IOPCIFamily 2.8

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

com.apple.kec.pthread 1

Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.66 GHz, 4 GB, SMC 1.58f17

Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB

Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.22)

Bluetooth: Version 4.2.0f6 12982, 3 services, 15 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: Hitachi HTS545050B9SA02, 500,11 GB

Serial ATA Device: MATSHITADVD-R UJ-898

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Internal Memory Card Reader

USB Device: Hub

USB Device: IR Receiver

USB Device: Built-in iSight

Thunderbolt Bus:

OS X Mavericks (10.9.1)

Posted on Jan 7, 2014 7:01 AM

190 replies

May 27, 2014 12:11 PM in response to PDCarter

Apple Repair Depot $310 for a new motherboard. The Genius at Apple confifirmed using VST that this is one of the effected MacBooks. I still think Apple should be paying for this since it is a manufacturing defect and Apple manufacturered a broke MacBook. Unfortunately I need my computer back for now and don't have the time to argue. BWT - I am typing this from a Windows 7 PC. ARGH!!

May 29, 2014 11:46 PM in response to andyappel

I was having the same problems, too, same 6,2 model, i5, 8GB ram, 256 GB SSD. Apple genius did the test, machine passed it and did not fall under warranty in february.

they still kept it there for a deeper examination and suggested I should swap the logicboard PLUS all the ram, as the new logicboard would not work with the ram installed (8GB from purchase on).

I declined, took it back, took out a 4GB ram chip (the upper one). no kernel panics in this configuration. this is reproducible for 10.9.2 and 10.9.3.

I do have some graphic artifacts though (only by using the integrated card, and having been much worse in 10.9.2 than in 10.9.3).

I did not check if the kernel panics could be related to the ram module I pulled out or to the upper ram slot. So far I just use the machine, the ram difference is not that noticable. I need the external monitor for keynote slide shows.

might test some new ram chips (and go up to 16 gig ;-)

pauljfromaugusta, PDCarter, are you doing fine with your configuration right now?

Jun 4, 2014 6:34 AM in response to benoler

benoler wrote:

Hello guys,

what fixed the issue of "recurring GPU panics at random times" for me was to alter the Configuration.plist file located in "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphi cs.framework/Resources/".

Just copy that file to the Desktop and edit it with XCode.

Where it sais "ForceSessionDrawsVirtualFramebuffer" change "NO" to "YES"

-> This setting will force the GPU to write data only to the main memory instead of using the VRAM.

Note: i assume this fix only works for GPU panics caused by read access failure (see what your panic dump says).

Note: do not use these settings if you're low on memory.

Hope that helps some of you folks 😉

Thanks, it works for me. At least until now 🙂

Jun 4, 2014 6:53 AM in response to anh.trinh

** RESOLVED ** I took my MacBook to the Apple store and had them run the VST "Video Switching Test" which came back with the expected FAILED message which is indicitive of the defect in some MacBook Mid-2010. I ended up having them send it to the repair depot and for a flat fee they replaced my logic board and display. I am happy to report that now after 3 days I have had ZERO problems.

Just an FYI that while Apple's VST is not generally available I found that I could use the free Cinebench app to test by running the OpenGL test. My Mac would restart everytime using Cinebench's OpenGL test which may be a good way for other's to test if a repair depot visit could resolve their issue.

Good luck! I am happy again and liking Apple again. I still think Apple should have covered the repair but Oh Well!

🙂

con234

Level 1

4 points

Jul 14, 2014 2:57 AM in response to Oberdan

Hi, I have the same problem. VERY nasty!

With this nice program gfxCardStatus I am abel to prevent NVidia grafic card to start. Which solves this problem The effect is No external monitor, no iphoto.

I went to mac-store - they were running some tests - according to them the Video Switching Test was included. But they could not find something - their advise - set up the whole mac again!

MINARAKY

Level 1

0 points

Jul 23, 2014 12:11 PM in response to cfbbaer

I have the same issue with my laptop, I went to apple store to figure out what is the options, they said, that repair cost is $524 plus tax.

I asked the genius bar tech. to speak to the store manager. went through a long argument about the video card issue and its not my fault as its apple's.

He said there was a time frame to change the video card for free but the time frame is ended. that didn't make sense to me as if he as a manager confirmed that there was a recall on that video card shouldn't be a time frame for it. didn't get no luck with the manager but he gave me an advice to contact apple care and see they can do. I took his advice and from the first 2 min. talking to the representative he was able to give the order to the store manager to fix my laptop with no charge. try to contact apple care and they will fix it. they care about customer satisfaction and we all understand its not apple fault its nvidia.

Aug 1, 2014 5:31 PM in response to BobRz

Thanks so much for the input all the gfxcardstatus version 2.1 solution worked for me!

djdolber

Level 1

8 points

Aug 8, 2014 11:53 AM in response to wickeninc

Hello,

got the same problem here, was living with it for a long time but then it started to get more frequent for whatever reason, so i found this thread, tried both solutions, the gfxCardStatus and the Config.plist thing...

what fixed the issue of "recurring GPU panics at random times" for me was to alter the Configuration.plist file located in "/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphi cs.framework/Resources/".

Just copy that file to the Desktop and edit it with XCode.

Where it sais "ForceSessionDrawsVirtualFramebuffer" change "NO" to "YES"

-> This setting will force the GPU to write data only to the main memory instead of using the VRAM.

Note: i assume this fix only works for GPU panics caused by read access failure (see what your panic dump says).

Note: do not use these settings if you're low on memory.

Hope that helps some of you folks

That fix made the problem go away for a few days completely, but then it came back and now happens almost at the normal rate again, very annoying... I know I have the other soluiton available, but I always use dual screen so I really dont want to... Feels really **** to basically be forced to buy a brand new computer now because of the high repair price... Will try to live with this for now...

Littyboy

Level 1

4 points

Aug 25, 2014 5:59 PM in response to MINARAKY

This is assuming you added the extended applecare right? Wouldn't work for those who didn't purchase applecare?

Sep 14, 2014 11:18 AM in response to djdolber

Is there any chance that you could provide me that Content.plist file because I am not being capable of editing it by myself?

Also, I believe that the 3 years of my warranty have gone by.. Any idea of how much it costs to fix it?

Sep 22, 2014 12:44 AM in response to Oberdan

Hey Oberdan I'm from Brazil too and I'm having the same issue with the same model, do you have any notice about free replacement? I'm thinking about to get some information about this issue on the Rio's Apple Store to see if we have a free replacement for this model here on Brazil.

viersen

Level 1

1 points

Oct 4, 2014 5:23 PM in response to cfbbaer

Hi Everyone!

I had the same issue everyone had here when I upgraded to ML but fortunately Apple agreed to replace my logic board for free last June. That happened after so many calls and explanations because the 3 year period was already gone. Everything's been working perfectly ever since the logic board was replaced. However, I have never upgraded to Mavericks. I am still now with ML with the new logic board and it works great. My question is, now that I have got a new logic board, could I install Mavericks without problems?? Would like to know if anybody that got their logic board replaced and where previously in ML, have upgraded now to Mavericks without reported issues? I believe if the logic board works perfectly now, well it should work perfectly with Mavericks as well, but since we all know that any OSX upgrade could develop issues to any computer, then I am worried on taking that step forward.

I would like to thanks everyone in advanced for your time.

viersen

Nov 15, 2014 4:09 PM in response to cfbbaer

so I read about the problem the past weeks.

Took my mbp to the service, because of several kernel panics the last weeks.

The service told me the logic board needed to be changed (600€ ⚠ in Germany). Talked to apple, but there is no way I'm going to get any help, because it is not enough that you pay quite a lot of money for such a computer, you also need to buy apple care.

I bought apple because of the "it just works" think. Now I'm angry.

btw. There are repair-offers at ebay with 1 year warranty that replace ONLY the Graphics chip, what will cost you about 130€.

Anyone tried? I guess even if it would work, it'll last half a year and something else will break..

al_varus

Level 1

0 points

Dec 1, 2014 10:25 PM in response to cfbbaer

I thought I should post about my case with this exact model (MBP mid 2010, 6.2) and this same issue.

My MBP was affected by this bad GPU issue (let's call it TS4088). I had bought the computer in 2010 (Snow Leopard) and started having way too many Kernel Panics after Lion came out. It was a bad time as this was when the issue was not very known and everyone was trying to figure out what was going on. Multiple trips to Genius Bar, lots of research (one of the original post in these forums about the issue when first reported had over 3,000 replies back in 2011).

In one of my visits to the Genius Bar, they finally ran the VST test, turned out it my unit was affected and they sent it for logic board replacement for free (as part as their recall campaign). I got my computer back and it worked perfectly through Lion, then Mountain Lion and Mavericks... until now.

I upgraded to Yosemite a week ago and it's been kernel panics galore since then. I decided to format my computer and reverted back to Mavericks from a clean install... but guess what: IT KEEPS HAPPENING ALL THE TIME... which is shocking because I had used Mavericks since it came out and had zero problems. I'm downgrading to Lion as we speak, but my hopes are not very high.

Is anyone able to explain how could this happen? If it's a hardware issue and I was able to use Mavericks for months without any panics, how is it possible that just upgrading to Yosemite has awaken the beast inside this ****** logic board/GPU? Is it just an issue that is just bound to happen over the time with this specific model?

I do have an appointment at the Genius Bar tomorrow, which is going to be fun. They did replace the logic board for free back in fall 2011, so I'm not sure if they are going to help me at all now... I'll try to tell them that even though I bought the computer in 2010, it's barely 3 years since they did the replacement and that they should count from the date they gave me a new logic board rather than the purchase date.

I'll report with the results of my visit to the Genius... in the meantime, could anyone try to explain how this could be happening again? I understand that it may happen with a new system and I'm OK with downgrading, but how is it possible that even downgrading to a OSx version that worked perfectly 2 weeks ago now is totally unusable? How is this latent issue somehow triggered by a system update and now it happens when reverting to older versions?

Dec 4, 2014 12:09 PM in response to al_varus

Hi. I've got a macbook pro mid 2010, affected by this issue. After a long search, i thin i found a workaround to avoid pay a lot of money for an old laptop repair (no warranty).

This issue is avoid the mac to use the nvidia chip, yes i know, you lost this funcionallity, but u get one stable equipment.

As super user (sudo su -) go to /System/Library/Extensions

Move the files/directories named NV*.kext and GeForce*.kext to a new backup directory.

Reboot the system.

in my case me laptop doesn't reboot or GPU panic for 5 days.

I hope this help others.

Good luck frm Spain.

GPU Panic - OSX 10.9 Mavericks - Macbook PRO 6,2