Macbook pro 13 inch late 2009 losing brightness?

Discussion in 'MacBook Pro' started by Soulstorm, Mar 29, 2012.

  1. Soulstorm macrumors 68000

    Soulstorm

    Joined:
    Feb 1, 2005
    #1
    I have a MBP late 2009. At work, I use a spring 2010 macbook pro 15 inch, the one with dual core i5 inside it.

    I have noticed that the brightness of my MBP is significantly lower than the one I have at work when using maximum settings on both. When put side by side, not only the 15 inch outperforms the 13 inch in brightness, but in color, too (my MBP screen is way hotter than the 15 inch, no matter how mush I tackle with the color settings).

    Just wanted to ask, if anyone has experienced any such problem with his/her macbook pro. Or it's just that the Spring 2010 models are supposed to be much brighter and clearer than the previews models? I also may be wrong, since I don't use the 13 inch a lot.

    I have Applecare, but I don't know if it will cover this problem, if it's actually is the problem.
     
  2. maflynn, Mar 29, 2012
    Last edited: Mar 29, 2012

    maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    I believe the 2009 models use LED for back lighting and one feature is that don't dim as they age unlike CCFL which does. My point is perhaps there is something else going on.

    by the way, my 2010 is as bright as the day I got it.
     
  3. Whackintosh macrumors 6502

    Whackintosh

    Joined:
    Mar 8, 2009
    Location:
    Montreal, Quebec
    #3
    Pretty sure that all unibody MBP's (from end-of-2008 onwards) featured LED backlighting, no?
     
  4. lamboman macrumors 6502

    Joined:
    Aug 13, 2011
    #4
    Correct.

    Might be a really stupid suggestion, but are you sure that you haven't accidentally selected a colour profile, or checked automatic brightness adjustment? Just a suggestion, that's all.
     
  5. Soulstorm thread starter macrumors 68000

    Soulstorm

    Joined:
    Feb 1, 2005
    #5
    In order to be sure, I compared it to other computers with the same color profile. Namely, my iMac early 2011 21.5 inch, and a MacBook pro late 2010 15 inch.

    The Macbook pro is certainly a bit brighter, and the iMac does not compare at all with my 13 inch macbook pro late 2009 (it's extremely bright).

    You think I should go to Apple for this? I have AppleCare until October.
     
  6. lamboman macrumors 6502

    Joined:
    Aug 13, 2011
    #6
    If you are 100% sure that the display is starting to dim, then I'd take it to your Apple Store and have a chat with them. They'll be able to help you better than anyone on here.

    This might be a pain also, but have you tried a fresh install? It could be that the brightness settings are borked (through some weird occurrences), maybe create a new partition and install on that just to see? I doubt it, but it's worth a shot.
     
  7. Interstella5555 macrumors 603

    Interstella5555

    Joined:
    Jun 30, 2008
    #7
    My Rev 1.1 started becoming "dimmer" after about 4 years, so it can happen, but have no idea about a solution (I was out of warranty for almost 2 years at that point and it wasn't a huge deal).
     
  8. lamboman macrumors 6502

    Joined:
    Aug 13, 2011
    #8
    Those used CCFL backlighting though, whereas the unibody models use LEDs. The latter should be less susceptible to unsusceptible to dimming.
     
  9. Azathoth macrumors 6502a

    Joined:
    Sep 16, 2009
    #9
    Sorry to bring back this necro-thread, but I have a MBA2011 and have noticed that it's been getting dimmer over the past year of (heavy) use.

    Confirmed with my Spyder3Pro, where peak brightness is now only 250cd/m2 compared to 350cd/m2 when it was new.

    Further research has shown that LED backlights do suffer from dimming with age. But their advantage, compared to CCFL, is that the dimming is gradual rather than gradual followed by "catastrophic".
     

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