Jerky animations with 15inch retina MBP and NVIDIA card

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Level 1

27 points

Jerky animations with 15inch retina MBP and NVIDIA card

Hi all.

Usually my 15inch retina MBP (2.7 i7, 16GB, 750GB SSD running 10.8.2) runs smoothly. However, when I open any application that uses the discrete graphics card, the NVIDIA GeForce Gt 650M, the animations within Mountain Lion all become jerky. This is most noticible when I opening the dock (esp maginification of icons) and opening mission control (especially scrolling between pages). They are incredible jerky and really disctact from using the computer. Once I close the app, everything goes back to normal. I've checked the behaviour by running gfxCardStatus and this confirms it's only when the NVIDIA card is being used.

I've run all the latest update.

Any ideas?

Thanks,

John

Posted on Nov 15, 2012 4:14 PM

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Answer 1

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sanjampet

Level 5

7,982 points

Nov 15, 2012 4:27 PM in response to jcbigears

Try a NVPRAM reset: Power down the mac, power back up and immediatly (before the start chime) press and hold the following keys: option, command,P,R. Continue to hold the keys till you hear the start chime 2 times then release. Afterboot completes, try rebooting. Hope this helps.

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Answer 2

jcbigears Author

Level 1

27 points

Nov 15, 2012 4:32 PM in response to sanjampet

Hi.

I tried that and unfortunately it changed nothing.

Thanks.

Any other suggestions?

John

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Answer 3

sanjampet

Level 5

7,982 points

Nov 15, 2012 4:43 PM in response to jcbigears

You might want to take it to the Apple store, they will diagnosis for free, may a flakey card.

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Answer 4

jcbigears Author

Level 1

27 points

Nov 15, 2012 9:27 PM in response to sanjampet

Thanks.

I'm here now and they've tested the computer hardware and it all looks fine. So it must be a software issue then? Still happening when I plug in an external monitor or use any software that uses the NVIDIA card. Any other suggestions?

John

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Answer 5

Nov 15, 2012 10:25 PM in response to jcbigears

Were you able to demonstrate the behavior to the Apple Techs? If so, I can't believe that they told you that the hardware looks fine - if it's a reproducible problem, it's not fine.

I would insist on a logic board replacement - I seriously doubt that you're having software issues.

Clinton

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