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Mac os Lion keep freezing

1311 Views 13 Replies Latest reply: Dec 9, 2011 7:58 AM by Linc Davis RSS
Aibak Calculating status...
Currently Being Moderated
Nov 25, 2011 10:50 AM

Its been more than 2 weeks my Laptop keeps freezing for 3-5 seconds. Especially when i m using Firefox, Itunes and VLC player. I cant take it anymore, Please help....

Thanks

Macbook pro 15, Mac OS X (10.7.2)
  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Nov 25, 2011 11:04 AM (in response to Aibak)

    Please read this whole message before doing anything.

     

    This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

     

    Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software -- potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions -- they’re easy to carry out and won’t change anything on your Mac.

     

    These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.

     

    Below are four lines of text in monospaced type, which are UNIX shell commands. They’re harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of running these commands, search this site for other discussions in which they’ve been used without any report of ill effects.

     

    Some of the commands will line-wrap in your browser, but each one is really just a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then either copy or drag it. The headings “Step 1” and so on are not part of the commands.

     

    Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.

     

    To begin, launch the Terminal application; e.g., by entering the first few letters of its name in a Spotlight search.

     

    Step 1

     

    Copy or drag -- do not type -- the line below into the Terminal window, then press return:

     

    kextstat -kl | awk ' !/apple/ { print $6 $7 } '

     

    Post the lines of output (if any) that appear below what you just entered (the text, please, not a screenshot.)

     

    Step 2

     

    Repeat with this line:

     

    sudo launchctl list | sed 1d | awk ' !/0x|apple|com\.vix|edu\.|org\./ { print $3 } '

     

    This time, you'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up. You don't need to post the warning.

     

    Step 3

     

    launchctl list | sed 1d | awk ' !/0x|apple|edu\.|org\./ { print $3 } '

     

    Step 4

      

    ls -1A {,/}Library/{Ad,Compon,Ex,Fram,In,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Sta}* 2> /dev/null

     

    Important: If you synchronize with a MobileMe account, your me.com email address may appear in the output of the above command. If so, change it to something like “user@me.com” before posting.

     

    Remember, this is all drag-and-drop or copy-and-paste, whichever you prefer -- no typing, except your password.

     

    You can then quit Terminal.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Nov 26, 2011 3:56 AM (in response to Aibak)

    Back up all data if you haven’t already done so. Before proceeding, you must be sure you can restore your system to the state it’s in now. If you skip this step, no one but you will be responsible for the consequences.

     

    You should update the following system modification(s), if an update is available from the developer:

     

    -

     

    and remove at least the following:

     

    BlackBerry

    BrowserPlus

    † DivX

    Octoshape

     

    It's essential that all of the latter be removed completely, and the only way to do that is to use the uninstallation tool provided, if any, or otherwise to follow the developer's instructions. In some cases it may be necessary to re-download or even reinstall the software in order to get rid of it. I can't be more specific, because I don't install such things myself.

     

    Never reinstall the modifications marked with a dagger (†) above, if any. If your problem is resolved after uninstalling all the above modifications and rebooting, but you still want to use some of those not marked with a dagger, you can experiment with putting them back, one at a time, testing carefully after each one. Keep in mind that system modifications may be incompatible with each other or with future Mac OS updates, so it may not be clear which one is at fault.

     

    Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very difficult to solve.

     

    If making the suggested changes and rebooting doesn't resolve your issue, post again.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Nov 27, 2011 4:12 AM (in response to Aibak)

    Please read this whole message before doing anything.

     

    This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

     

    The purpose of this exercise is to determine whether the problem is localized to your user account, or is system-wide. Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select “Help” from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.

     

    While logged in as Guest, you won’t have access to any of your personal files or settings. Any application you run will behave as if you were running it for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.

     

    As Guest, launch the applications and test. Same problem(s)?

     

    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Dec 5, 2011 10:14 PM (in response to Aibak)

    Please read this whole message before doing anything.

     

    This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

     

    The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Boot in safe mode and log in as yourself. First, disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable. The instructions provided by Apple are as follows:

     

    • Be sure your Mac is shut down.
    • Press the power button.
    • Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    • Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).

     

    During startup, you will see "Safe Boot" on the login screen, which appears even if you normally log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

     

    Safe mode is slower than normal, and some things won’t work at all, including your login items.

     

    Test again. Same problem now?

     

    After testing, reboot as usual (i.e., not in safe mode.)

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Dec 7, 2011 5:17 AM (in response to Aibak)

    Please uninstall MacFUSE, reboot (not in safe mode), and try again. If that doesn't solve the problem, repeat steps 1-4 and post the output.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    Dec 9, 2011 7:58 AM (in response to Aibak)

    You seem to have removed "BrowserPlus," but not the other third-party system modifications as I suggested above. I have nothing else to contribute and will unsubscribe from this thread now. Good luck.

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