Enable 4 Finger Gestures on early 2008 Multi-touch MBP with 10.5.7 update

Discussion in 'MacBook Pro' started by adkiller, May 15, 2009.

  1. adkiller macrumors newbie

    Joined:
    Jan 22, 2008
    #1
    Hi,

    I've noticed that there were some attempts to re-use the older 10.5.6 AppleUSBMultitouch.kext with the 10.5.7 updated installs. Though it works, I'm not sure if there are side effects to doing that, though it has been reported to work.

    I have come up with easier way of updating the 10.5.7 AppleUSBMultitouch.kext to support 4 finger gestures without having to use the older kext or perform any kext replacement. Here is how:

    WARNING: This mod is only applicable to the 2008 Penryn MBPs that were released just prior to the unibody models. Please make sure to follow these steps exactly! Read all the steps before performing any of them!

    1. Download the attached Info.plist.txt file into your home folder.
    2. Open Terminal and cd into your home folder. Like this:
      Code:
      cd ~/
    3. Check to see if you have the Info.plist.txt in your home folder. Like this:
      Code:
      ls -l Info.plist.txt
    4. Please repeat all the above steps again, if you see the this:
      Code:
      ls: Info.plist.txt: No such file or directory
    5. In the subsequent step you will be requested to enter your password to complete some of the commands. Please keep your password ready and enter it when requested!
    6. Execute the following commands one line at a time in Terminal:
      Code:
      mv Info.plist.txt Info.plist
      sudo cp Info.plist /System/Library/Extensions/AppleUSBMultitouch.kext/Contents
      sudo rm /System/Library/Extensions.mkext
    7. Reboot your MBP.

    After rebooting your MBP, the multi-touch gestures should work. If it doesn't work please post your problem in this thread.

    If you were to do a diff between the Info.plist attached here against the one in your MBP (before you replace it ofcourse), you'll be able to see what the changes are to enable 4 finger gestures support. These changes could also be applied to future 10.5.x updates to enable 4 finger gesture support.

    :)
     

    Attached Files:

  2. firstname Guest

    #2
    I had to repair permissions to get this working (on a MBP)
     
  3. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #3
    Hey guys it's my first post here and I have a question for the 4 finger on 10.5.7...I bought my macbook pro new on May of 2008...can I enable 4 finger on it??If will not work what will happen??I will loose my trackpad??
    Thanks in advance
     
  4. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #4
    NOBODY???:(
     
  5. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #5
    The first post should answer your question, if your Mac is able to do it.

    Just try, what the poster suggested. And if it does not work, you can always make a backup of the edited .kext file.

    And if all hell breaks loose, there is always the option of a fresh install.

    You can also use MRoogle for more topics on that issue.
     
  6. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #6
    Thanks but I am just confused with the terms "early" , "late" , penryn macbook pro e.t.c...so I bought mine new on May 2008...so I guess it belongs to the 2008 Penryn MBPs that were released just prior to the unibody models or not??
     
  7. MrZebra macrumors regular

    Joined:
    Sep 7, 2008
    #7
    yes, but if you're still in doubt you can check your model in the system profiler, your mbp should read 4,1.
     
  8. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #8
    It's 4.1...so I will try later to do that...any suggestions if something will go wrong??
     
  9. MrZebra macrumors regular

    Joined:
    Sep 7, 2008
    #9
    I suggest you doing a backup before trying to modify the kext file for the trackpad, and it something goes wrong you can always restore via time machine.
     
  10. bristleworm macrumors 6502

    bristleworm

    Joined:
    Jul 22, 2008
    Location:
    Germany
  11. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #11
    and what happened?you had any problems?you lost your trackpad and had to reinstall os??or just didn't work?


    I just tried and nothing changed...even after repairing permissions (like firstname says above).Pitty...and I would like to get this feature back like I had iy on 10.5.6...
    The good thing is that nothing bad happened to computer with those "dangerous" sudo commands...
     
  12. bristleworm macrumors 6502

    bristleworm

    Joined:
    Jul 22, 2008
    Location:
    Germany
    #12

    I had exactly the same problem. Nothing changed even with repaired permissions.
    I then decided to be brave and used the old .kext file that worked with 10.5.6 and after repairing permissions and rebooting I had the four finger gestures working again.
     
  13. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #13
    u think I should also go for it??I really want it...:D

    SUCCESS!!!OLD METHOD WORKED!!!
     
  14. adkiller thread starter macrumors newbie

    Joined:
    Jan 22, 2008
    #14
    To everyone here who have tried it on their Penryn MBP, did you execute this command?
    Code:
    sudo rm /System/Library/Extensions.mkext
    Without the above command it just wont work. The updated configuration in the kext won't load if the Extensions.mkext was not deleted. You must complete step 7 as well for it to finally take effect.

    I have tried the step I've provided on 3 different Penryn MBPs (none of which I own) and it worked flawlessly.

    -Ad
     
  15. kosmac macrumors newbie

    Joined:
    May 22, 2009
    #15
    I tell u that...I tried this method and NOTHING happened...then I said what the @@@@...I will try the old method!!!and WORKED!!!:D
     
  16. shahrukhan60 macrumors newbie

    Joined:
    May 27, 2009
    #16
    Could you..

    Could you please post what version of trackpad is this applicable to? The reason I ask is because although I bought my MBP in late 2007, the trackpad and keyboard have been replaced since and I was wondering if they used a different board (such as the one for 2008 - as they look the same). I think it would be more useful to quote what version etc etc. of trackpad this is applicable to. If somebody other than the programmer is trying to help here's what you do: If this worked for you, go to APPLE on top left corner>click About this Mac>Click More Info> Go to USB and copy paste your Apple Internal Keyboard / Trackpad info

    Thank you :)
     

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