1 45 46 47 48 49 Previous Next 1,019 Replies Latest reply: Oct 6, 2012 1:06 AM by n748 Go to original post Branched to a new discussion.
  • 690. Re: OS X Lion freezes at login screen + App Store is slow
    Andrew Tallon Level 1 Level 1 (95 points)

    Hi Terry--I tried your fix (for others who might like to try using textwranger, there's a screenshot with the 10.6.8 version on the left and the 10.7.2 version on the right) and it didn't, alas, work for me. I didn't trash the kext file before changing the values--I wonder if this might have made the difference. Also: is a restart good enough? Or is it necessary to somehow 'flush' the values from the memory by shutting down?

     

    Andrew

    Screen Shot 2012-01-23 at 16.43.13 .jpg

  • 691. Re: OS X Lion freezes at login screen + App Store is slow
    Terry Mahoney Level 1 Level 1 (35 points)

    Andrew: Here is the (4 Nov. 2011) post from SDG Consultant that started me looking seriously at the AGPM.kext/Contents/info.plist file ...

     

    https://discussions.apple.com/message/16626907#16626907

     

    As you can see s/he recommends rebooting in safe-mode, to flush the kext-cache.

     

    SDG Consultant stepped in again with another post, 12 Jan 2011, on "page 45" of this thread, listing the "parameter values" (for those of us who were/are inclined to test our own skills).

  • 692. Re: OS X Lion freezes at login screen + App Store is slow
    Andrew Tallon Level 1 Level 1 (95 points)

    HOORAY!!! This solved the problem! Here are the steps I took:

     

    1. Edit the /System/Library/Extensions/AppleGraphicsPowerManagement.kext/Contents/Info.plis t file according to the values for the 6,2 MacBookPro in the 10.6.8 version of the same file using TextWrangler (as in image in my previous post).

     

    2. Move the extension file to the trash and reboot in safe mode (shift key down) to flush the extension cache.

     

    3. Move the extension file from the trash back to its original place (you'll need to authenticate)

     

    4. Reboot...and take AS LONG AS YOU LIKE to type your username/password.

     

    I'm really impressed that you all came up with a real solution to a nasty problem. Astonishing that apple didn't catch this...

     

    Andrew

  • 693. Re: OS X Lion freezes at login screen + App Store is slow
    brianwilson71 Level 1 Level 1 (0 points)

    OK Andrew,

     

    Macbook Pro, Mid 2010, 15" 2.53 Ghz Core i5. Think that is the 6,2

     

    So just to be clear: I have edited the /System/Library/Extensions/AppleGraphicsPowerManagement.kext/Contents/Info.plis t file and made my values match the left hand image you enclosed  (I only changed the values that did not match AND that are visible in your screenshot).

     

    First boot-up no spinning beachball. Good stuff. I'll keep you posted and thanks for the info.

     

    /Brian

  • 694. Re: OS X Lion freezes at login screen + App Store is slow
    Raj Khurana Level 1 Level 1 (0 points)

    Hi Andrew , my take here

     

    1. Changed the values in info.plist using textwrangler to match the screenshot of 10.6.8 . Thanks

    2. reboot in safe mode

    3. shutdown n restart in normal mode .

    4. no beachballs

    Terry i hadnt changed one particular value for device 034 . Thanks again bro .

  • 695. Re: OS X Lion freezes at login screen + App Store is slow
    Raj Khurana Level 1 Level 1 (0 points)

    So guys who r using  15" mid 2010 macbook pro pls try terry's agpm kext fix . its the only fix which works n trust me i've tried enough. pls do keep a backup of the original info.plist file . Cheers to Terry

  • 696. Re: OS X Lion freezes at login screen + App Store is slow
    Raj Khurana Level 1 Level 1 (0 points)

    points to remember .

     

    1. backup the info.plist. pls change the values for both devices 029 and 034 under macbook pro 6,2 to those mentioned in the screenshot provided by andrew .

    2. use textwrangler . its the easiest way according to my knowledge. shut down the mac.

    3. reboot in safe mode as suggested by terry. hold down the shift key during startup

    4. n see the magic .

    5. dont need to do snow leopard 10.6.8 install . if u have it then just copy the SYSTEM/LIBRARY/EXTENSIONS/applegraphicspowermanagement.kext and replace the lion's version of the file in this location.

    This was just a wrap for the uninitiated . hope more guys try this n post positive results.

  • 697. Re: OS X Lion freezes at login screen + App Store is slow
    Terry Mahoney Level 1 Level 1 (35 points)

    Raj: Thanks for the kudos.

     

    And Raj and  Andrew and Brian: Keep the ball rolling, guys!

     

    It's good to get repeated confirmations that we actually DO have a fix that works, here. At least for MBP6,2.

     

    Probably a good idea to make a summary document of the step-by-step procedure to follow, so that when somebody else needs it, say next month, it will be easy to re-post.

  • 698. Re: OS X Lion freezes at login screen + App Store is slow
    gr4z Level 1 Level 1 (0 points)

    Sorry for the noob question but when I try and save the info.plist file TextWrangler just complains I have insufficient privileges. I have made sure I have R/W permission on the file.

    ??

    Thanks

  • 699. Re: OS X Lion freezes at login screen + App Store is slow
    mountainrivers Level 1 Level 1 (0 points)

    Thanks for the tip!

  • 700. Re: OS X Lion freezes at login screen + App Store is slow
    mountainrivers Level 1 Level 1 (0 points)

    It's interesting you say that because I have a late 2008 MBP that has always taken an inordinately long time to start up from sleep or from being shutdown. Since Lion was installed it has become even worse and I've had to force shut it down multiple times to reboot it. Over the last three years I've taken it to the "geniuses" three times only to have them do a quick scan of some kind and one very quick fix with a software program (they didn't take the time to tell me what exactly, but hurried me along) and sent me on my way. They never fixed the problem.

     

    When I went in for the Lion install, I told them I wanted a clean install and the genius insisted it wasn't necessary. My MBP was messed up after that. Now my extended warranty has expired so I just reformatted to do a clean install of Lion, and will have to hope for the best. Not happy about it though after spending $3000.00 on the machine and its initial software, not to mention the extended Apple Care program!

     

    I've learned my lesson about not being more assertive at the Apple store with the Apple geniuses.

  • 701. Re: OS X Lion freezes at login screen + App Store is slow
    Terry Mahoney Level 1 Level 1 (35 points)

    gr4z: {Re. "noob question" - any question is a good one): Click on TextWrangler's "pencil icon" - to change the filr from "Read Only" to Read-Write" (and back again). This means you do not need to worry about messing with the "file permissions" (which can cause other problems if you forget to reset them when you are finished).

  • 702. Re: OS X Lion freezes at login screen + App Store is slow
    Terry Mahoney Level 1 Level 1 (35 points)

    mountainrivers: (sorry if this is "off topic", but ..) did you ever try doing a clean install? Slow startups could be due to a number of things - as you probably know by now. For example, the HD could be starting to fail.

     

    One technique that I found useful with my MBO was to simply purchase a new HD and install a fresh copy of MacOS X (10.6.8 or 10.7.2 - or make it dual boot, 2-partitons). Then put your old drive in an external fast FireWire enclosure and use the Migration Assistant to move all your stuff to the new drive.

  • 703. Re: OS X Lion freezes at login screen + App Store is slow
    hotrod45 Level 1 Level 1 (5 points)

    i had the same problemon log on as many of you are writing about. after following many suggestions on the forum which were not doing any good, i gave in and drove to the apple store. the young man at the genius bar suspected that the startup disc was the cause, too mush stuff in there. i don't remember how, buthewent to a page which displayed all if the items in this startup. he asked as he plowed down the list if i need that in there. well, after removing many items, my mac book pro launches faster and no more freeze ups. stil get a spinning beach ball once in a while. maybe one of the experienced contributors could elaborate on this process for some of you having this problem.

  • 704. Re: OS X Lion freezes at login screen + App Store is slow
    jas0nyan Level 1 Level 1 (0 points)

    Does 10.7.3 update solve this problem?

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