24" iMac Screen Freezes since 10.6.3 update - pls help!

I don't know if this is just coincidence or not, but since updating my iMac to 10.6.3 it keeps on crashing. On 3 separate occasions today, whilst using my Mac the screen has gone completely black with thin white lines down it.....see pic below:

http://picasaweb.google.com/lh/photo/6SYzhCgVYEU5TBKqRfOQ1Q?feat=directlink

The fans and hard disk are still running but it will not respond to any keyboard or mouse presses - I simply have to turn it off by holding the power button in.
It will then restart as usual.

Anyone got any ideas? Do you think that if I was to re-install Mac OS X from my original install disk it could solve the issue?

Thanks

Darren

24" intel imac 2.8Ghz, Mac OS X (10.6.3)

Posted on Mar 31, 2010 2:43 PM

Reply
1,804 replies

Jul 28, 2011 5:59 AM in response to W S H

WSH, I got the kernel panics with 10.6.8 also and had to revert back to 10.6.7 with the kext. I was under the impression that you had to be running the latest software version in order to get Lion, but when I read it only had to be 10.6.6 or higher, I went for it. The 32/64 bit must be a issue because with the 7,1 it is hard and complicated to get 64 bit in 10.6.8 so that is why we were getting the kernel panics in my opinion. If you start from 10.6.7 and just upgrade and immediately do the kext like I did, you may get it working because it automatically sets the OS to 64 bit. Fact is though, working iMac or not, it is ridiculous that we have to even worry about this because it should be working without having to jump through hoops


And yes you are correct, we are running the exact same iMac version and I will let you know after the weekend

Jul 28, 2011 6:13 AM in response to Chris J.

Chris,


could you please post the output of the following command (kextstat | grep ATI) to this thread just to check what version of kexts are you running. it should look something like this:


cy-bear:~ swm$ kextstat | grep ATI

76 2 0x12d1000 0x32000 0x31000 com.apple.kext.ATISupport (6.2.6) <75 14 13 7 5 4 3 1>

77 0 0x1303000 0x23000 0x22000 com.apple.kext.ATI1600Controller (6.2.6) <76 75 14 13 5 4 3 1>

92 0 0x948000 0x5b000 0x5a000 com.apple.ATIRadeonX1000 (6.2.6) <78 75 13 7 6 5 4 3 1>

110 0 0x1326000 0x13000 0x12000 com.apple.kext.ATIFramebuffer (6.2.6) <76 75 14 13 7 5 4 3 1>


btw, that's a white 20" intel imac4,1 running stock 10.6.7 w/o any side effects. i will replace the core duo w/ a core2duo soon to get it lion-aware.


my guess is that you still use the original lion drivers from the kext cache.


my other 20" alu imac7,1/2400XT still runs the untouched lion pretty stable, since the last freeze happened last friday.

Jul 28, 2011 7:20 AM in response to Chris J.

Dude, where did you get 6.0.6 version from? Any way you can make those available?


And why does the System Info app show 7.2.9 but that command shows 7.0.2 ?


MrFreeze:~ johnk$ kextstat | grep ATI

88 2 0xffffff7f813e3000 0x186000 0x186000 com.apple.kext.ATISupport (7.0.2) <75 9 8 7 5 4 3 1>

89 0 0xffffff7f8186b000 0x40000 0x40000 com.apple.kext.ATI2600Controller (7.0.2) <88 75 9 8 5 4 3 1>

91 0 0xffffff7f81569000 0x25f000 0x25f000 com.apple.ATIRadeonX2000 (7.0.2) <90 75 9 7 6 5 4 3 1>

96 0 0xffffff7f81854000 0x12000 0x12000 com.apple.kext.ATIFramebuffer (7.0.2) <88 75 9 8 7 5 4 3 1>


Message was edited by: johnckendall

Jul 28, 2011 8:17 PM in response to Harkaitz

Harkaitz wrote:


Just installed on an imac 7.1 with 2600pro and working with 10.6.2 Kexts.


There was a user having problems with the patch but on my 7.1 never failed (even on lion betas).

That user was me! Maybe the ATI 2600 works in Lion but the 2400 is still busted? Can anyone confirm this? It would be super awesome if everything is fixed except for my particular machine with my particular graphics card. Of course by super awesome I mean terrible.

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24" iMac Screen Freezes since 10.6.3 update - pls help!

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