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Graphics glitch Mountain Lion MBP

So I loaded Mountain Lion on my late 2009 MBP and while the computer was fine before the upgrade, afterwards is a different story. Despite the fact I have 8GB of RAM, it seems to be sluggish, but the main problem stems from the graphics on the display. When I go to use any two-finger gesture (about 70% of the time) the screen will flicker and then "tear" and show portions of the screen in random places, if I don't touch it or restart it, it will change to the "snow" or static fuzz look.


This happened shortly after I bought the computer, which I took back to Apple and had them replace the NVIDIA graphics card and I've been fine since. Now the issue, with the newer card, only 30 mins after installing Mountain Lion, has come back.


This graphics card is one of those dual cards, the one that allows for better battery life or better graphic performance.


Any suggestions?

MacBook Pro, OS X Mountain Lion

Posted on Jul 26, 2012 6:46 AM

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18 replies

Jul 30, 2012 4:22 PM in response to mwewerka

Just wanted to chip-in and say I'm having the same issues, mid 2010 mbp, nvidia geforce gt 330m, slows down to a crawl when using discreet graphics, forcing integrated only with gfxCardStatus fixes the issue at least temporarily. Im a designer who relies on the discreet chipset, so hoping apple releases a fix for this soon enough. Not ideal...

Jul 31, 2012 8:29 AM in response to mwewerka

I am also having the same issue on a late fall MBP 8,2 with an AMD Radeon 6750M after upgrading to 10.8. I first noticed it when starting up Chrome the screen went from the usual warm stock settings to a cold blue tinted look. Quitting Chrome sent it back to normal. After, I tried to manually toggle between integrated GPU and the discrete GPU and every time I'd get the same results... a change in screen tint.


As of right now I managed to get the problem to go away by booting into safe mode, which I believe clears some cache files and does other things, and then immediately booting back up normally. So far so good (1 day) but if it does it again I'm going to try a clean install of ML.

Jul 31, 2012 8:56 AM in response to mwewerka

I decided to call Apple Care, the first person (girl) was very helpful, she had me reset my PRAM, do a disk repair and even a full reinstall of Mountain Lion. She told me that if after the install, the problem still persisted, to call back (as she had given me 90 days of support for Mountain Lion). However, when I called back, because the issue still kept happening (surprise), I got a guy, who barely spoke english, which was the first time this has ever happened when I've called Apple. He was very rude and didn't really seem to fully understand what I was trying to explain to him, regardless of the fact that my entire case was on the computer in front of him. After explaining to him that I had one logic board fail over a year ago, that had since been replaced, my computer had been working fine, that is until I installed OS X 10.8. He said that is impossible as this is a hardware issue and Moutain Lion is software. After trying to explain to an "Apple" rep that the software in Mountain Lion contains drivers for "hardware" and that, that could be the issue, he refuted the possibility. I then pointed out that I've posted on the Apple support forums....want to know his reply, you'll love this.


He said and I quote: "We" [Apple] don't reference or acknowledge the forums for issues like this, because our competitors can change their names or make accounts and post false information in our forums, attempting to degrade our products and make us look bad."

Can you believe that?? So regardless of the fact that my logic board has now failed twice in 3 years, he tells me since I don't have Apple Care extended support, I'll have to pay out of pocket. Frustrated and annoyed by the most unprofessional Apple rep I've ever encountered, I hung up the phone and will be making a trip to my nearest Apple retail store (an hour away) this evening. At least I'll have someone who speaks english and I can actually show them the issue first hand, as the computer can't go more than 5 mins without the glitch showing up.


To see if you are having similar issues: Go to YouTube and type this in exactly (or copy and paste it)

"MacBook Pro graphic issue after Mountain Lion install" minue the quotes. It will be posted by me, mtwewerka.


I just thought I'd share this issue with the CSR at Apple with you all, oh, he also said he has never heard of this issue. He said since ML has been released, he's been taking calls for days and I'm the first person that's reported this problem. After reading all of your responses, I can only assume he's lying. However, in case he isn't, if you haven't already, I highly recommend you call Apple at 800-APL-CARE and tell them of your issue so we can get this noticed by a few representatives. Seeing how I run my own tech new blog, believe me, I'll be spreading the word...just not with the same level of hostility as I am on these forums.


Mike Wewerka (aka Michael Blake)

Aug 5, 2012 10:29 PM in response to mwewerka

Mike - I'm having the exact same issue. I'm on a 2009 MBP with 8 gigs of RAM. I've noticed the problem primarily while im in chrome. Sometimes I'll see a screen flicker. Other times the screen gets totally corrupted and I'll have to reboot. This problme only started when I upgraded from Snow Leopard to Mountain Lion and I've never had any graphic issues prior.


User uploaded file

Aug 6, 2012 6:22 AM in response to agotterer

Well here's the 180 (degree) report, after going to the Apple store. I visited my local store on Tuesday of last week. I showed them the computer, the screen shots and even the video I shot (that's on YouTube). They took my computer and decided to run some stress tests over two days. So I went down on Friday, which was my first available chance to pick it up, as it's an hour drive. Upon getting there, the genius brought my computer out. He said they did a full factory reset and then installed Mountain Lion and after a full day of testing, basically running movie trailers and YouTube all day, with email and web surfing, they said they didn't experience the problem.


I was like, great! But I noticed they didn't install iLife on to my computer after they wiped it. So the genius hooked it up to their network (hardwire) and as he began to install iLife, the problem happened again. He was baffeled. So, he said, "Give me a minute." After waiting for about 15, he came back and said, "How big was your harddrive, do you remember?"


To which I replied, "Yeah, 320GB."


He said, "Oh, great... would you mind if we just gave you a brand new computer?"


I was blindsided and excited, I said, "Um, nope."


So after a little work, I ended up walking out with a brand new, mid-2012 15-inch MacBook Pro with an Intel Core i7 quad-core processor, 4GB of RAM and a 500GB harddrive. I was estatic. Now this may have happened because I've already had a logic board replaced once, the fact that I had to drive 4 hours in total, the fact that he read the transcript from the (rude) Apple phone support guy and that they failed to fix the issue after I brought it in, either way, in the end, this was amazing customer service. The fact that my computer was a mid-2009 MBP, with no Apple care and completely out of warranty and they still took care of me, I'll definitely be an Apple customer for life.


Before I left, I said would I get to keep the battery charger, as mine has the metal wiring exposed (which shouldn't happen) and he said, unfornately no, that they need to send every back with my computer. But, if I bring my charger down, he'll swap it out for a new one, free of charge. That's awesome.

Aug 8, 2012 6:54 AM in response to mwewerka

This isn't just an issue with the MBP, I have a late 2009 iMac and it has the same problem. I also note that the moving between Spaces often caused the screen to freeze halfway between spaces for a few seconds before completeing the action.


You would have thought that the number of people with this issue, it would have been identified in the beta testing!

Sep 17, 2012 1:07 AM in response to ptidav

Hello all together.

i have the same issue on my 15-inch, Mid 2010 Macbook Pro running 10.8.1. Also i had no problems before upgrading to Snow Leopard. It is really annoying when switching between spaces and the deskop icons are visible for a moment. That only happens when directly jumping to a space (ctrl + 1,2,3, etc.) and not when "sliding" to the next or previous one. (ctrl + </>).

I hope that apple fixes this issue in a timely fashion!

Sep 24, 2012 2:36 AM in response to mwewerka

For any Apple support teams, I think I have narrowed down the root of this issue. I have an iMac (27" late 2009) and when I had the display port to VGA adapter plugged in (but not actually attached to a monitor) I was getting these graphgical glitches after the machine had been booted for several hours. The machine would then hang at some point and require rebooting


Since I have removed the adaptor the gliches have gone and the machine no longer hangs. This is likely to explain why it happens with so many MBP's which have a perminent second monitor port, very often with no monitor plugged in to it.


What lead me to this discovery was that after rebooting one time, mountain Lion thought that the main 27" monitor was now a default VGA monitor and set the resolution to 1024x768, and when I tried to change the resolution there were 2 monitors showing


Perhaps one of you MBP users could try plugging in a monitor and see if the gliches/crashes still happen

Graphics glitch Mountain Lion MBP

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