MacBook Pro mid 2009 preferences Energy Saver

Discussion in 'MacBook Pro' started by darmr, Jun 23, 2016.

  1. darmr macrumors member


    May 26, 2014
    Available Cards:
    NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory3
    NVIDIA GeForce 9600M GT graphics processor with 512MB of GDDR3 memory

    Preference Options:
    Better battery Life
    Higher Performance

    Which of these settings stops the graphics card switching between the two graphics cards?
    I’d like to keep using the GeForce 9600M GT.

    pmset -g shows:
    Active Profiles:
    Battery Power -1
    AC Power -1*
    Currently in use:
    womp 0
    autorestart 0
    halfdim 1
    sms 0
    hibernatefile /var/vm/sleepimage
    gpuswitch 2
    networkoversleep 0
    disksleep 0
    sleep 0
    hibernatemode 0
    ttyskeepawake 1
    displaysleep 0
    acwake 0
    lidwake 1

    What relevance does the setting “gpuswitch 2” play in all this?
    I have Higher Performance preference selected and my mac is running beautifully.
    Am i correct in thinking the Better Battery Life is the option that would switch cards automatically?
  2. Samuelsan2001 macrumors 604

    Oct 24, 2013
    OS X will use the optimum card as needed why worry about it.
  3. darmr thread starter macrumors member


    May 26, 2014
    It’s not so much that i’m worried. I just like to understand how my mac functions.

    It is running very well. However when i open a large project i “sometimes” see slight glitches in graphics GUI, not always!.. so i thought it might be the card actually switching.

    Also when Energy Saving is selected i see errors in console like “Failed to update bookmark for item”…
    When Higher Performance is selected they aren’t there?

    I think it would be good to pin and only use the 9600 GT card, is this possible?
  4. Samuelsan2001 macrumors 604

    Oct 24, 2013
    You can use gfxcardstatus to choose whichever card you would like. See here for download.

    However I would think long and hard before you do it, that card is known for failing when put under more stress and yours has lasted well, forcing it on all the time may well be the cause of a failure for it.
  5. darmr thread starter macrumors member


    May 26, 2014
    Thank you. much appreciated.. I agree, my mac is running loverly, it isn't worth the risk.
    I'm running El Capitan 10.11.5 and loving it.

Share This Page