Mountain Lion UI Lag on rMBP !!! (Let's Make this thread serious and hope for a fix)

I personally think the UI lagging bug is a serious issue on rMBP because this machine cost $2000 and up and it lags on UI features such as Mission Control and Space Switching while classic Macbook pros don't. I do understand that the retina display models carries a high resolution display, but I think the quad core CPU should have the ability to handle it (please correct me if I am wrong)



I am hoping and asking anyone experiencing the issue to follow up with this thread and post your concerns. Let's hope for a fix soon and we can really enjoy the beauty a Retina Macbook Pro brings to us.

MacBook Pro with Retina display, OS X Mountain Lion

Posted on Jul 27, 2012 7:26 PM

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1,322 replies

Nov 5, 2012 9:08 AM in response to Wayne Chin

I would think that if Techs that work @ mac (Even the retail stores) are sending back thier rMBPs then Apple is aware and working on it. It's nice to have a person on the inside for this i guess.


To be clear I don't own one, but want one. I am crawling this thread to see when it is fixed so I can pick one up. But right now I own a 09' 17" MBP Duo Core with Upgraded Ram & SSD.


I am also here for moral support 😉

Nov 5, 2012 9:15 AM in response to Kevin808

I'll be honest, and I could get roasted for saying this, but it's been a hit/miss situation. I've received perfectly working rMBP's that have absolutely no scroll flaw whatsoever. I'm guessing something happened at the SMC update process. There's already a fix for the 13" rMBP and I can tell you, once the SMC and EFI updates are applied to the rMBP, all the problems go away.

If only the engineers can write a subroutine that allows you to reflash the 15" SMC and EFI updates, I'm more than convinced that THAT will solve this issue.

Nov 5, 2012 1:15 PM in response to dsciel

Well, I managed to fix a 15" rMBP just now, this one had the previous version of the EFI firmware. I updated it using MacBook Pro Retina EFI Update v1.0, and after an SMC reset and NVRAM reboot, the laptop is now running flawlessly.


I'm begging the Apple engineers to PLEASE allow us to reflash the EFI firmware, just rewrite it so that the firmware update can be applied again!

Nov 8, 2012 5:26 AM in response to dsciel

I have a rMBP and it has serious lag, the most obvious being in the calendar app, changing months, scrolling certain websites, viewing PDFs in preview, and entering mission control. My friend has a rMBP with identical specs and it has literally no lag at all. Very annoying, especially as I found nothing about interface lag online until after I bought the laptop. At least its not a hardware issue... Fingers crossed for a fix.

Nov 8, 2012 6:13 AM in response to Tom_Bate

When you say it lags month-to-month, are you talking about when you use two fingers to scroll and it initiates the page curl animation? Can someone upload a video of this? I'd like to see how bad it is.


For comparison, here is the page curl on my 2009 MBP:

http://www.cloudee.com/go#/f/509bb9d88ad6c20d10000087


There really isn't any Judder, but there aren't a whole lot of frames either. (In other words it's smooth with a low frame rate) How does the Retina compare?


Also, I have my laptop set to use the more powerful Discreet Graphics card which is obviosly not as good as the 650M in the Retina, but it's better than my on-board chip used for better battery life.

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Mountain Lion UI Lag on rMBP !!! (Let's Make this thread serious and hope for a fix)

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