How can I verify MBP is using AMD drivers?

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

  1. raycart macrumors newbie

    Jan 28, 2013
    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

    Aug 28, 2009
    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

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

Share This Page