Why can't the iMac's backlight be turned off?

Discussion in 'iMac' started by mrsir2009, Sep 26, 2012.

  1. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #1
    Apologies if this has been asked before, but does anyone know why the iMac's backlight can't be turned right off like the backlight of MacBooks can?

    Thank you very much :)
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    It can. Just turn off the screen.
     
  3. comatory macrumors 6502a

    comatory

    Joined:
    Apr 10, 2012
    #3
    It can be. Hit CTRL+SHIFT+EJECT
     
  4. mrsir2009 thread starter macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #4
    Thank you - It's just that it doesn't turn off using the F1 key.
     
  5. comatory macrumors 6502a

    comatory

    Joined:
    Apr 10, 2012
    #5
    Dimming doesn't work, that's what F1 and F2 keys are for. I am not sure if there is support for it with built-in display or any other display. It'd make sense if the OS would remap these keys for display brightness for desktop computers.

    I also don't think the system would allow you to remap F1 key for that particular keyboard combination (maybe Keyboard Maestro could do it but not worth the price IMHO).
     
  6. iMacFarlane macrumors 65816

    iMacFarlane

    Joined:
    Apr 5, 2012
    Location:
    Adrift in a sea of possibilities
    #6
    Turning off the backlight on the iMac apparently has some undesired side effects on performance. Notice the negative impact on the geekbench screen grab below . . .
     

    Attached Files:

  7. DKZ macrumors member

    Joined:
    Mar 14, 2006
    #7
    I like you.
     
  8. jollino macrumors 6502

    jollino

    Joined:
    Nov 15, 2006
    Location:
    Chieti, Italy
    #8
    Man, you have my vote.
     

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