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I also have this issue especially with 10.7.2. Even though I reinstalled Lion so many times and in different ways, I still have this bug with my graphics. I freezes every 5 sec with the same message as fyodor in log. For now I'm sticking with 10.7.1 as it is the most stable version for me.

Hi, I need to disable nvidia optimus as my graphics card GT 525M is not recognized by Lion and causes freezes in 10.7.2 every 5 seconds everytime I try to load any app. Sadly, I don't have any disabling function in my dsdt to edit it as shown in this topic: http://www.insanelymac.com/forum/index.php?showtopic=271292. Could you help me to add this patch or send a dsdt already edited this way? Thanks in advance. dsdt.rar

Hi, I installed Lion osx on my laptop. I've got everything working and QE/CI but I still have some problems with graphics sometimes like shown in this video: http://www.youtube.com/watch?v=s1mMkmZSt6w. Also I've got heat and fan speed issues as if power management kext was not working properly or for some other reason that I don't know. Sometimes I get a KP when booting and I have to boot using -v -f. I try to find already patched dsdt but I couldn't find any that matched to my model. I'm attaching my original dsdt extracted from Ubuntu. I hope someone will be able to help me to patch it so that my laptop can work properly. Thanks in advance. Specifications: Mac OS X Lion 10.7.1 (x 64) - Chameleon 2.1svn-r1618 - Dual boot Windows 7: Dell Inspiron Q15R (N5110-1706): Intel Core i3-2310M 2.10 GHz, Nvidia GeForce GT 525M, Intel HD 3000, Wifi DW1510 PCI-E, Bluetooth D-Link DBT-122, 4Gb RAM DDR3 1333 Mhz, HDD 500Gb 7200 rpm dsdt.aml.zip