Snow Leopard 13" MBP Screen Brightness Bug?

Discussion in 'MacBook Pro' started by lorkp, Sep 3, 2009.

  1. lorkp macrumors member

    Apr 27, 2005
    The minimum brightness setting in Snow Leopard is A LOT brighter than the minimum setting in Leopard. In another thread someone thought it had something to do with having a 9CC2 panel. I happen to have a 9CC2 panel.

    Please post if you are having this problem and whether you have a 9CC2 panel or not.

  2. macboy4 macrumors regular

    Feb 17, 2009
    I have this model and I'm definitely having this issue. I didn't stumble across this thread; I noticed this problem and then searched it so it's definitely not in my head.
  3. uriaha macrumors newbie

    Sep 3, 2009
    Same here. At the minimum brightness setting in Snow Leopard, my screen feels about as bright as the halfway-point on Leopard. Battery life seems to have taken a hit, too. :(
  4. Shaduu macrumors 6502a


    Jan 31, 2007
    This is probably something to do with the gamma setting Snow Leopard ships with. In Leopard, the default gamma setting is 1.8 and Snow Leopard changes this to 2.2, the standard for television.

    A gamma setting of 2.2 makes images seem more vivid and bright, hence why your display looks different under SL. You can change the gamma back down to 1.8 in System Preferences > Displays > Color > Calibrate.
  5. biiishplz macrumors newbie

    Jul 10, 2009
    Cypress, CA, USA
    I haven't noticed any issues with mine after upgrading to Snow Leopard, but I have the 9CBD (BD9C) panel in mine. I also noticed that my gamma was still set to 1.8; Snow Leopard didn't change it.
  6. lorkp thread starter macrumors member

    Apr 27, 2005
    It's not a gamma issue. I'm positive. Really.
  7. HomeyC macrumors newbie

    Jun 21, 2009
  8. teerexx52 macrumors 68000


    May 1, 2005
    Florida West Coast
    I agree. It is not Gamma
  9. pinktank macrumors 6502

    Apr 5, 2005
    I hope we get a fix, is there a thread on the apple forums?
  10. lodev macrumors newbie

    Dec 18, 2007
    Fixed in 10.6.2

    Mac OS X Update 10.6.2 fixes this - tested it myself.

    From the release notes:

    Graphics fixes provided for:
    * addresses functionality with specific display models
  11. dvrk547 Guest

    Nov 4, 2009
    Wow, thank you so much. I am having this issue too. After trying to set the gamma that many people say, my screen still has a blue tint and it's still brighter than it was before I upgraded to Snow Leopard. Hopefully this update will fix it.
  12. jamesr242 macrumors member

    Jun 29, 2009
  13. dan5.5 macrumors 6502

    Oct 26, 2008
    10.6.2 has been a pretty stable release...Lots of little things got fixed
  14. peto01 macrumors member

    Oct 18, 2009
    i dont know but after update the system, the book is overheating. 70 °C and just surfing the web without flash.

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