How can I verify MBP is using AMD drivers?

Discussion in 'MacBook Pro' started by raycart, Nov 12, 2014.

  1. raycart macrumors newbie

    Joined:
    Jan 28, 2013
    #1
    Is there a way I can verify my MacBook Pro (Early 2011) is using the AMD drivers instead of the on-board video?

    Background: Like many, my MBP developed the video problems with this model with the monitor going blank. I was able to reboot using a suggested workaround: single-user mode, and moving all of the AMD/ATI drivers out of System:Library:Extension. In single-user mode, the video was very poor, of course, and as it reported, the MBP could not go into sleep mode.

    I sent the MBP into a third-party which does component repair on logic boards. Got it back via shipment, and I was able to boot into standard multi-user mode. However, the video quality is still poor (constant refresh in Finder windows, for example). And I still can't put the MBP to sleep.

    I reinstalled the AMD/ATI drivers I had temporarily removed, fixed permissions on them, and zapped PRAM. However, no improvement.

    The repair firm has offered to look at the MBP again under warranty. However, first I want to verify that the software really is using the AMD drivers. The video display is so similar to when I was in single-user mode that I have my doubts.

    Thanks for any help.
     
  2. cjmillsnun macrumors 68020

    Joined:
    Aug 28, 2009
    #2
    Install gfxcardstatus.

    Then goto system preferences and disable Automatic graphics switching under Energy Saver.

    gfxcardstatus should then show a D in the menu bar.
     
  3. raycart thread starter macrumors newbie

    Joined:
    Jan 28, 2013
    #3
    Thank you. It shows Discrete, so I guess it back to the repair shop.
     

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