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16

iPhones/iPod Touches/iPads all have a Unified Memory Architecture which mean that both the CPU and GPU share system memory. There is no dedicated video memory on these devices. The advantage is that you don't need to worry about running out of video memory for your textures or vertex data (your app will be terminated by iOS for using too much memory before ...


13

Repeated kernel panics occurring without third party drivers can only be caused by a few things: 1) A peripheral device 2) A bad OSX image or bug in OSX itself 3) A hardware problem In your case, it is unfortunately (3): System model name: MacBookPro6,2 The kernel panic indicates that your GPU is failing. This is a known issue for your machine. ...


10

In the WWDC 2015 video "What's new in Metal, Part 1", Rav Dhiraj from the GPU software division states at 8'40" Metal is supported by all Macs introduced since 2012. (Nvidia, AMD and Intel) This means : Intel HD Graphics 4000, Iris 5000 & 6000 family, nVidia GT 600M, 700M family, AMD R9 M family,


9

Solved: Booted to Single-User mode and disabled Radeon GPU. Details of investigation: Initially I suspected hard-drive corruption and went about trying to remedy that. Unsuccessfully, I tried the following, with each continuing to hang as described above: Safe boot Boot into recovery (including Internet Recovery) Boot from install media on USB drive Boot ...


7

gfxCardStatus (free) I found the link to it on EveryMac along with some other info about graphics switching. fast access via menu icon auto/manually switch between discrete and integrated graphics power source-based switching growl support open source


7

Finally!! ( in 2015...? ) MacBook Pro Repair Extension Program for Video Issues http://www.apple.com/ca/support/macbookpro-videoissues/ I hope this helps everyone.


6

Yes the GPU panics are almost certainly due to a defective discrete GPU card. I have the same 2010 MBP and have noticed 10.9.3 has increased the frequency of these fatal crashes significantly. I'm using the gfxCardStatus utility to turn off this discrete card whenever possible but many apps force it on.


5

On a high level, it's like an automatic transmission - when you press the gas gently, the throttle increases but when you stomp on the accelerator pedal the engine downshifts the transmission to increase the mechanical advantage. You can influence switching to the powerful GPU by hitting the API with significant work and expect the "transmission" to ...


4

Your model has only the Intel HD 4000, so you can't use CUDA Full specifications: http://support.apple.com/kb/sp649


4

Though I didn't experience the blue screen, this does sound a lot like the issue that I described in Boot hangs on grey screen (even when booting from USB drive with fresh OS X install) (I posted as a different user since I didn't immediately have my StackExchange credentials handy). It seems there are an increasing number of people experiencing failure to ...


4

you definitely should try this one: http://www.asyncro.com/2014/03/24/macbook-pro-discreate-graphics-card-issue-fix-updated/ I’m writing this reply from my until-now broken MacBook Pro 2011 dammed GPU piece of technology. You'll get away working without the AMD GPU, which vs. having a dead USD$2k… paperweight isn't really a bad deal.


3

You did right so far. But you have to move all ATI files from that folder as well. It will work after that, but the graphic will be slow. Make sure to boot in verbose mode (Cmd-S at startup). mount -uw / (to be able to move System files) mv /System/Library/Extensions/ATI* /System/Library/DisabledExtensions/ Note that the Folder DisabledExtensions needs ...


3

I got into single user mode without much trickery, as my AMD card seems to work up to the point where the drivers are loaded, just with stripes across the screen. So I got to remove the drivers as described at asyncro. I rebuilt the kextcache (alternatively deleted it), but my Mac doesn't boot to internal graphics but uses the discrete graphics (according to ...


3

I'm having the same issue with GPU on my MBP 2011 and was using the same solution as yours (plus additionally disabled AppleIntelHD3000Graphics.kext). Saving money for motherboard replacement (or the new Haswell MBP whatever)… I'm able to play most of videos with Miro player. Although, I'm starting to have difficulties with my eyes since it's not possible ...


3

It depends what you mean by: use them both at the same time So, Apple's usage of two GPUs is based on using one or the other, not both. Meaning as a user, you cannot "use them both at the same time." Now, if you're talking about using them both as a programmer, well then anything is possible, and you could probably target both GPUs using OpenCl. Most ...


3

Not all of the listed items have a voltage of 12 V. E.g the HDD+ODD has only 5 V and the CPUs have a much lower voltage. According to Intel the voltage of the Xeon® Processor X5670 maxes out at 1.350 V and the TDP is 2 x 95 W (and not 2 x 12 V x ~46 A = 1104 W). So just adding all currents and multiplying them with 12 to get the wattage is not appropriate ...


2

Since people are still commenting on this, I will post what happened as my answer: I took the MBP to a different store where they concluded that it was a faulty HDD cable since I had installed the SSD myself and they assumed it got some kind of shock for me not wearing an ESD bracelet. (Although as far as I can remember, the friend of mine who installed the ...


2

About dialog displays only the primary built-in device not the discrete, accelerated GPU. To be sure, run: system_profiler SPDisplaysDataType in the terminal. On my mac, the About dialog shows only on-chip Intel device, but the above command reveals the detail, also telling me that my Mac is equipped with the AMD Radeon HD 6750M which is OpenCL 1.1 ...


2

Your particular MacBook Pro (6,2) has documented GPU problems for some units: https://support.apple.com/kb/TS4088 http://reviews.cnet.com/8301-13727_7-57577329-263/os-x-10.8.3-forces-discrete-gpu-use-in-2010-macbook-pros/ Even if you think you are out of warranty coverage, a call to Apple would be a good move. You've done most of the troubleshooting by ...


2

Thank you all I have used the linked procedure - http://www.asyncro.com/2014/03/24/macbook-pro-discreate-graphics-card-issue-fix-updated/ Although while rebuilding the drivers cache it has given me down the line "segmentation fault" but when it booted: I have noticed in Energy Saver "Automatic switching check box was removed now".Also My external video ...


2

gfxCardStatus can do this — when the GPU changes, you'll get a notification: You can see the dependency by clicking the menu bar item. It also works the other way round — you'll get a notification when it switches back to the integrated graphics.


2

I'm using iStat Monitor, which is a really great app. GPU monitoring is also supported. Here i found YouTube Review (not related with me, have further searches for better/other reviews)


2

I am not saying you are wrong, but the GPU memory is normally used for rendering the current laptop 2D display, and then for the calculations for 3D display (games), and GPU acceleration (modern browsers). I've used, programmed various computers for many years, and yet to see an issue related to an application using to much GPU memory. But ISTRC MBP from ...


2

I also experienced these crashes nearly every other day on my mid 2012 MBP. This solved it for me: Switch off "Automatic graphics switching" for Battery and Power Adapter settings. This will increase overall power consumption but for me the crashes have vanished. Explanation: Mac Book Pros (and other Macs) quite usually come with two different GPUs. A ...


2

Try this ( http://blog.krzysztof-turek.com/apple-imac-8-1-freeze-problem-solution-en/ ) I had the same issues ; display frozen but pointer moving but no kernel panic on a mid 2007 imac 2.0 ghz and running osx 10.8 Mountain Lion. the kext swap worked for me . Good Luck


2

Some 2011 MBPs have a well-known GPU problem. So well-known, in fact, that Apple will replace your GPU for free! That link leads to Apple's page for their GPU replacement program.


2

The Mac Mini supports OpenGL 4.1, which is required, but may not have to enough Video RAM (VRAM). Low End Mac and Every Mac differ on how much VRAM the Mac Mini has. If Every Mac is correct, GPU acceleration is supported. If Low End Mac is correct, GPU acceleration may be disabled. OpenGL 4.0+ Required - OK See the Mac OS section of Illustrator Help / ...


1

September 2014 - Apple's Still Unacknowledged Elephant? Has your MacBook Pro turned into a brick? Gray screens? Black screen? Refuses to boot? Then the guys on this page have given THE answer. I tried a thousand things until I stumbled upon this for use after cmd+S when pressing power button: /sbin/fsck -fy / /sbin/mount -uw / mkdir ...


1

I used to have an MBP 15" mid-2010 and I was able to measure a lot of temperatures (including, I'm fairly sure, the GPU temperature) using iStat Menus. They have a 14-day trial version so it costs nothing to try. Edit: here's a crop from a screenshot on my older MBP 15" mid-2010 showing the latest version of iStat Menus. Notice the plethora of GPU sensors. ...


1

My mid 2010 15 inch Mac Book Pro is in for a logic board replacement right now for what looks like the same issue. At least the first line of the log you posted is identical to the ones I was having. Apparently a run of nVidia graphics chips used in that vintage of 15 inch MBPs had a "latent defect". The bug can be tickled or not depending on the ...



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