DazzaG
Level 1 (2 points)

Q: 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

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DazzaG

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

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  • by Chris J.,

    Chris J. Chris J. Jul 24, 2011 2:05 PM in response to CWGuide
    Level 1 (30 points)
    Jul 24, 2011 2:05 PM in response to CWGuide

    You did...sorry about that!

  • by CWGuide,

    CWGuide CWGuide Jul 24, 2011 2:06 PM in response to Chris J.
    Level 1 (135 points)
    Jul 24, 2011 2:06 PM in response to Chris J.

    I'm trying to be as detailed as possible :-) It's been awhile! After I replaced the files I left it that way till the next apple update that promised graphics driver improvements, I believe it was version 10.6.7. And now I have lion.

     

    Also my driver (ATI2400Controller.kext) says it's version 7.2.9

  • by Eclipsethegalaxy,

    Eclipsethegalaxy Eclipsethegalaxy Jul 24, 2011 2:07 PM in response to swmaster
    Level 1 (5 points)
    Jul 24, 2011 2:07 PM in response to swmaster

    I have 3.06 GHz Core Duo 4GB 1067 MHz DDR3 NVIDIA GeForce GT 130 / Lion

    Screen freezing / I have made no alterations with Kext files.

  • by Chris J.,

    Chris J. Chris J. Jul 24, 2011 2:12 PM in response to swmaster
    Level 1 (30 points)
    Jul 24, 2011 2:12 PM in response to swmaster

    ATI Radeon HD 2400 XT:   

    Chipset Model:     ATI,RadeonHD2400 

    Type:     GPU   Bus:    

    PCIe   PCIe Lane Width:     x16  

    VRAM (Total):     128 MB  

    Vendor:     ATI (0x1002) 

    Device ID:     0x94c8  

    Revision ID:     0x0000  

    ROM Revision:     113-B2250A-207 

    EFI Driver Version:     01.00.207

     

    my iMac is mid 2007 7,1  Only works properly with 10.6.2 kexts running in 10.6.7 

  • by Chris J.,

    Chris J. Chris J. Jul 24, 2011 2:14 PM in response to CWGuide
    Level 1 (30 points)
    Jul 24, 2011 2:14 PM in response to CWGuide

    I would like to go back and try that and I have even went to update the graphics with the download, but it will not let me.  Box says that my graphics do not need to be updated.  You may have gotten lucky I guess, or you did it the right way...either way, good job!

  • by swmaster,

    swmaster swmaster Jul 24, 2011 2:21 PM in response to CWGuide
    Level 1 (0 points)
    Jul 24, 2011 2:21 PM in response to CWGuide

    i have the same version, it's the stock driver bundled with Lion.

    i had a gpu crash this moring, while checking out some bllsht video on youtube.

    so keep your fingers crossed

  • by swmaster,

    swmaster swmaster Jul 24, 2011 2:22 PM in response to Chris J.
    Level 1 (0 points)
    Jul 24, 2011 2:22 PM in response to Chris J.

    he is not lucky, i mean not that lucky... a freeze will come, sooner or later.

  • by micka321,

    micka321 micka321 Jul 24, 2011 2:23 PM in response to DazzaG
    Level 1 (0 points)
    Jul 24, 2011 2:23 PM in response to DazzaG

    Had the same problem up graded to Lion still having same problem

  • by swmaster,

    swmaster swmaster Jul 24, 2011 2:24 PM in response to Eclipsethegalaxy
    Level 1 (0 points)
    Jul 24, 2011 2:24 PM in response to Eclipsethegalaxy

    thx for the info.

    could you post the relevant output from system information, like Chris did?

  • by Steve Ikemura,

    Steve Ikemura Steve Ikemura Jul 24, 2011 6:06 PM in response to micka321
    Level 1 (5 points)
    Jul 24, 2011 6:06 PM in response to micka321

    FYI Apple has seeded Lion 10.7.2 to developers.

  • by Eminemdrdre00,

    Eminemdrdre00 Eminemdrdre00 Jul 24, 2011 6:20 PM in response to DazzaG
    Level 1 (0 points)
    Jul 24, 2011 6:20 PM in response to DazzaG

    Just had my 2nd freeze of the day. This time is was a Snow Leopard type of freeze. My entire screen went black, couldn't see my mouse or anything. Had to do a hard reboot. My AppleCare is up on August 12th. Is it worth calling/driving an hour to my nearest Apple store? We know this isn't a hardware issue, it's a bad ATI driver.

  • by tylerted,

    tylerted tylerted Jul 24, 2011 9:05 PM in response to tylerted
    Level 1 (0 points)
    Jul 24, 2011 9:05 PM in response to tylerted

    I'd hate to report it, but 10.6.8 in 64 bit mode eventually hung with the moving cursor issue and required a hard restart. It took about 4 days to manifest. I'm running an early 2008 iMac 24" (8,1) model with a ATI Radeon 2600 Pro video card and (now) stock KEXT files.

     

    So from there, I upgraded to LION, and have had roughly daily freezes since. The issue doesn't appear to be fixed in Lion, either.

     

     

  • by tylerted,

    tylerted tylerted Jul 24, 2011 9:16 PM in response to Eminemdrdre00
    Level 1 (0 points)
    Jul 24, 2011 9:16 PM in response to Eminemdrdre00

    Drive to the store if you've got the time! Point them to this thread (with its 150,000+ views and 650+ posts) and to the success people have had with replacing the KEXT files (don't let on that you've replaced them though, or they'll send you away).

     

    Also, it looks like the new 2011 iMacs are having similar problems. They've just released a firmware update for those (and no, they can't be applied to our 8,1 iMacs)

     

    http://support.apple.com/kb/TS3824

  • by Tardigrada,

    Tardigrada Tardigrada Jul 24, 2011 11:44 PM in response to swmaster
    Level 1 (9 points)
    Mac OS X
    Jul 24, 2011 11:44 PM in response to swmaster

    iMac 8,1

    ATI Radeon HD 2600 Pro

    ROM-Version:    113-B2250L-259

     

    running smootly OSX 10.6.7 with the 10.6.2 gpu kexts.

     

    In preparation to update to OSX 10.6.8 I'm currently using the 64 bit kernel. However, both kernels worked fine with the above configuration …

  • by TK111,

    TK111 TK111 Jul 25, 2011 6:36 AM in response to DazzaG
    Level 1 (0 points)
    Jul 25, 2011 6:36 AM in response to DazzaG

    Since I got a new GPU on 2 July, have had no freezes with any configuration (but one kernel panic). Four days now with stock kexts on Lion.

     

    24" iMac8,1

    ATI Radeon HD 2600 Pro

    ROM Revision: 113-B2250L-259

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