What's this all about?

Discussion in 'MacBook' started by lPHONE, Feb 6, 2011.

  1. lPHONE, Feb 6, 2011
    Last edited: Feb 6, 2011

    lPHONE macrumors 6502a

    lPHONE

    Joined:
    Nov 17, 2009
    #1
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Did you restart the Mac?
    Did it reoccur?
    Is it limited to one GPU or does it happen on both?
    Do you still have warranty?

    [​IMG]
     
  3. lPHONE thread starter macrumors 6502a

    lPHONE

    Joined:
    Nov 17, 2009
    #3

    I restarted and reset the PRAM.
    Yes.
    I don't know. Do you mean from an external monitor?
    No.
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    I mean, you have two video cards, the IGP (Integrated Graphics Processor) called 9400M, and the dedicated GPU called 9600M GT. You currently have selected the either the 9400M or 9600M, but does it also happen with the 9600M or 9400M?
    You can use gfxCardStatus to change between GPUs without logging out and in again.
     
  5. lPHONE, Feb 6, 2011
    Last edited: Feb 6, 2011

    lPHONE thread starter macrumors 6502a

    lPHONE

    Joined:
    Nov 17, 2009
    #5
    OK, I installed gfxCardStatus and switched gpu's but no changes.

    Also, why does the MBP have 2 video cards?
     
  6. simsaladimbamba

    Joined:
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    #6
    The IGP is there to conserve energy and the GPU can be used for me GPU intensive tasks.
    Apple has used two graphic cards in their MBP line since the introduction of the Unibody design in 10/2008.
     
  7. lPHONE thread starter macrumors 6502a

    lPHONE

    Joined:
    Nov 17, 2009
    #7
    why not just always use both?
     
  8. CamilleGoo8028 macrumors newbie

    Joined:
    Feb 6, 2011
    Location:
    USA
    #8
    The problem on the MacBook of horizontal lines, it happened when you used the scroll-bar it will better to use track-pad it will help you to avoid this problem. And may be possibility of problem in driver issue of 9400M you can get help from support.apple.com/kb/TA27218?viewlocale=en_US
     
  9. simsaladimbamba

    Joined:
    Nov 28, 2010
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    #9
    Because it is not designed that way. The Intel HD and 330M combination in the current MBPs works without logging out and in again and switches on the fly, but using both at the same time would be a waste of money for displaying normal content.
    You don't really need two GPUs to write essays or watch Friendface videos.
     

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