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OSX Lion, Graphic Artifacts

Hello, after i've installed OSX Lion on my iMac 2011 27°, i started getting strange graphical artifacts on my desktop as you can see in this screenshot. http://t.co/5EXmRfL

The graphic artifacts randomly appears, without that i am doing nothing in particular.


Is this a common issue? It's a Lion issue (fixable with an update) or should i format my iMac?

iMac, Mac OS X (10.7)

Posted on Jul 22, 2011 7:03 AM

Reply
394 replies

Feb 2, 2012 3:42 PM in response to Andrew Humphreys

Andrew - you have to trawl through the threads i'm afraid.. haven't tried it myself. Report back if you find sucess though!


I read that 10.7.3 has updated nvidia drivers on the net... I haven't installed it yet but i will do the combo over the weekend.


Currently, i'm shocked apple only mentioned the ATI fix in the notes and nothing about the nvidia. I alone sent apple multiple crash reports daily...

Feb 3, 2012 2:58 AM in response to MusioMan

Thanks, MusioMan.

I did see that thread and will try the suggested solution (deleting the AppleGraphicsPowerManagent.kext and rebooting in safe mode) if I can't find another solution. I've just uninstalled Perian (following a suggestion I found on the MacRumors forums) to see if that makes a difference.

My video card is an ATI HD 5750 with 1024 MB of RAM, BTW.

Mar 12, 2012 12:51 AM in response to Anke

I have the exact same problem as you Anke. As i'm from Belgium we don't have official Apple stores, i took my iMac (wich is medio 2009 and 3 days away for it's AC waranty void date) back to the shop (wich is an official apple reseller and they may open up macs and perform reparations)


They swapped my graphic card for a new one, and nothing changed, the problems is still occurs and even a bit worse. It only happens after i used intensive software for the graphic card (the problem always occurs after rendering 3D)


Today i will send them a mail (to have proof i've sent them before the waranty void date, because they are criminals who rip you off constantly 😝) and call them. I don't know what's happening but the idea of a corrupt driver is possible the cause, or the logic board is broken. Either way i hope they solve it...


What did you do? And did they fixed it for you?


Greetings

OSX Lion, Graphic Artifacts

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