DazzaG

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

Close

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

  • All replies
  • Helpful answers

first Previous Page 110 of 120 last Next
  • by freandc,

    freandc freandc Jul 9, 2014 8:33 PM in response to pauloamgomes
    Level 1 (0 points)
    Jul 9, 2014 8:33 PM in response to pauloamgomes

    *** OS X Version 10.9.4 ***

    Successful application of Krysztof Turek kext fix

    Assuming previous application of fix (see earlier posts), procedure was backup and removal of AMDFramebuffer.kext, AMDSupport.kext, and AMD2600Controller.kext from /System/Library/Extensions followed by a reboot and confirmation of loaded status of version 1.6.6 of applicable kext fix files.

     

    Paulo - no real issue with the post, just trying to keep the thread tight and accurate for anyone encountering this problem for the first time, i.e. finally decided to try and update the old OS.

     

    Cheers,

    freandc

  • by George2705,

    George2705 George2705 Jul 9, 2014 11:08 PM in response to freandc
    Level 1 (0 points)
    Jul 9, 2014 11:08 PM in response to freandc

    Hi All

     

    I have just applied 10.9.4 and noticed that the ATI Kexts remained at 1.6.6 after the update.  So only needed to archive the AMD kexts.

    I notice the discussion has been branched but when I try to get to the new branch I get an error saying I don't have the access rights.

     

    Is the branch a private discussion?

  • by aieronimo,

    aieronimo aieronimo Jul 12, 2014 8:48 AM in response to freandc
    Level 1 (0 points)
    Jul 12, 2014 8:48 AM in response to freandc

    Dear freandc - thanks for the info that you were able to install OS X 10.9.4, with no issues.  Can you confirm still no freezes since your installation?  I'm just a little surprised that no one else has posted on this topic, since usually a new OS update creates several emails from the veterans on this site who are updating and describing how the update and kext fix worked out.  It's been awfully quiet ....

     

    Thanks. -- Tony

  • by freandc,

    freandc freandc Jul 12, 2014 9:04 AM in response to aieronimo
    Level 1 (0 points)
    Jul 12, 2014 9:04 AM in response to aieronimo

    Tony-

    Confirmed -- no freezes since installation. It's my opinion that we will never see freezes once the fix is applied as the old kexts clearly address the root cause. What I think is more the issue now is whether the installation and loading of the kexts will continue to succeed as the OS evolves. Hence, the focus of my post was the installation rather than the lack of freezing but your point is well taken. In the future I will make sure I also report freeze status.

     

    With respect to the 'veterans', we're probably dying off as we get the urge for something new. I'd be surprised if I last another year. I'm maxed @ 4GB memory with a 2.8 GHz Duo cpu and now you can get a 3.4 GHz quad core with up to 32 GB. One of these days there's going to be an extra dollar in my wallet and I'm gonna spend it.

     

    Cheers,

    freandc

  • by aieronimo,

    aieronimo aieronimo Jul 12, 2014 9:13 AM in response to DazzaG
    Level 1 (0 points)
    Jul 12, 2014 9:13 AM in response to DazzaG

    Thanks again, freandc.  I am waiting for Retina-display iMacs before I upgrade, and maybe also affordable flash memory options.  Also, it looks like Yosemite technically will run on our machines, although the situation again will be if Apple leaves the graphics drivers unlocked so that we can switch out the bad ones for the good ones.  (We are fortunate that the Mavericks drivers remain unlocked.)

     

    I think that I'd like to see if this machine runs on Yosemite, and at a decent speed, then figure out how long I wait for that Retina-display iMac to come out ....

     

    Best regards,

     

    Tony

  • by viskem,

    viskem viskem Jul 15, 2014 12:02 PM in response to aieronimo
    Level 1 (0 points)
    Jul 15, 2014 12:02 PM in response to aieronimo

    1st Alu iMac with Yosemite

     

    But this fantastic fix wont work there....

     

    just with 10.9.4 again, fix do fine

     

     

    Anyone an Idea, why it wont work on Yosemite?

     

    dont interested in buying a New iMac yet, its fine, normally

  • by Daniel Smith-Weiss,

    Daniel Smith-Weiss Daniel Smith-Weiss Jul 16, 2014 3:24 PM in response to freandc
    Level 1 (4 points)
    Mac OS X
    Jul 16, 2014 3:24 PM in response to freandc

    Another update, and another crash later I reapplied the Kext fix. Mac OS 10.9.4 seems to be running well again, though I hate the hassle of needing to fix this after every single update.

  • by toddclick,

    toddclick toddclick Aug 11, 2014 3:10 PM in response to freandc
    Level 1 (0 points)
    Aug 11, 2014 3:10 PM in response to freandc

    Thank you to this post and the original fix posted by krzysztof-turek. Fingers crossed but so far twenty-four hours without incident and potentially more time to save for a new comp.

  • by Biotech guy,

    Biotech guy Biotech guy Aug 16, 2014 8:50 AM in response to freandc
    Level 1 (0 points)
    Aug 16, 2014 8:50 AM in response to freandc

    Thank you freandc.  This solved my ongoing problem with a 2007 iMac.  My system has been stable with no screen freezes for over a week.

     

    Model Name: iMac

      Model Identifier: iMac7,1

      Processor Name: Intel Core 2 Duo

      Processor Speed: 2 GHz

      Number of Processors: 1

      Total Number of Cores: 2

      L2 Cache: 4 MB

      Memory: 4 GB

      Bus Speed: 800 MHz

      Boot ROM Version: IM71.007A.B03

      SMC Version (system): 1.20f4

     

    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

      Displays:

    iMac:

      Display Type: LCD

      Resolution: 1680 x 1050

      Pixel Depth: 32-Bit Color (ARGB8888)

      Main Display: Yes

      Mirror: Off

      Online: Yes

      Built-In: Yes

     

    Typical screen freeze consisted of repeated Kernal listing in Console with random numbers after it.  This would continue indefinitely until hard reboot.  I was wondering if anyone has tried the iMacGraphicsFWUpdate.dmg from Apple posted in 2012 (iMac Graphic FW Update 3.0)?  Just wondering why Apple would not have included this in routine software updates.

  • by Phil_O_,

    Phil_O_ Phil_O_ Aug 31, 2014 12:44 AM in response to Biotech guy
    Level 1 (0 points)
    Aug 31, 2014 12:44 AM in response to Biotech guy

    Well I've held off doing any updates since my last post, and my system has been running well.   Messed up last night and instead of muting the continual request from Software update to update to 10.9.4 I hit the wrong option and when I turned my machine on this morning it had updated to 10.9.4 

     

    I've been running for a couple of hours though without any issues,  but I'm ready on the first freeze to remove the AMDxxxx  files.  I guess I won't have to wait much longer  LOL

     

    Thanks to all for the continual updates in this thread

     

    @Biotech Guy..   I'm pretty sure I jumped for joy when I saw that update FW appear  but wondered why my system hadn't applied it during one of the updates.  I did manually download it and try to apply it but it just told me I didn't have the correct hardware or something and wouldn't install.  I think it was meant for a later iMac than my 2007 model.

  • by santitf,

    santitf santitf Sep 19, 2014 2:04 AM in response to DazzaG
    Level 1 (0 points)
    Sep 19, 2014 2:04 AM in response to DazzaG

    Hi. Anybody update at 10.9.5 and try to fix?

  • by h4nds,

    h4nds h4nds Sep 20, 2014 8:56 AM in response to DazzaG
    Level 1 (0 points)
    Sep 20, 2014 8:56 AM in response to DazzaG

    yeah, the krzysztof-turek fix needs to be applied again after updating to 10.9.5.

  • by StevenMcd33,

    StevenMcd33 StevenMcd33 Sep 22, 2014 9:04 AM in response to DazzaG
    Level 1 (0 points)
    Sep 22, 2014 9:04 AM in response to DazzaG

    Hi, I own a iMac (mid 2007, 7,1) 4 GB 667 MHz, ATI Radeon HD 2400 XT 128 MB.

     

    Recently upgraded Mountain Lion to Mavericks 9.4.5, it froze within a minute of installation as usual. So I performed the kext procedure as I have ever since snow leopard. but it still froze all the time.

     

    I went into the /System/Library/Extensions folder and noticed that apple have renamed the kext files starting with ATI to AMD.

     

    renamed my stable kexts (version 1.6.6.25 (7429))

    From

        ATI2400Controller.kext

        ATIFramebuffer.kext

        ATISupport.kext

     

    To

        AMD2400Controller.kext

        AMDFramebuffer.kext

        AMDSupport.kext

     

    I then reinstalled them using in Kext Helper b7 tool.

     

    My system is now running rock solid without any freezes, I instantly noticed the speed difference once it had loaded up.

     

    regards steve.

  • by siknus,

    siknus siknus Sep 23, 2014 3:50 AM in response to DazzaG
    Level 1 (0 points)
    Sep 23, 2014 3:50 AM in response to DazzaG

    I've been following this thread for a long time. Extremely useful for those with Apple-forgotten Care Less iMacs. Thank you guys.

     

    I'd like to know if someone has already tested Mac OS X 10.10 Yosemite in any of the affected iMacs. Haven't found anything related.

     

    According to this website, all Mavericks compatible computers will be so with Yosemite:

     

    Quick Update: On June 2, 2014, Apple announced OS X "Yosemite" and it is compatible with all of the Macs listed below that are compatible with OS X Mavericks. However, specific feature support has not been finalized. When specific details are available, this Q&A will be updated and/or a new one will be written.

    http://www.everymac.com/mac-answers/os-x-10.9-mavericks-faq/os-x-mavericks-compa tible-macs-system-requirements.html

  • by babowa,

    babowa babowa Sep 23, 2014 4:05 PM in response to siknus
    Level 7 (32,312 points)
    iPad
    Sep 23, 2014 4:05 PM in response to siknus

    I'd like to know if someone has already tested Mac OS X 10.10 Yosemite in any of the affected iMacs. Haven't

     

    If somebody has, they are not allowed to discuss it here or they would be ciolating their NDA as well as the ToU here as we're not allowed to discuss it either.

first Previous Page 110 of 120 last Next