Can't stop display mirroring at start up?

Discussion in 'OS X Yosemite (10.10)' started by bluedoggiant, Oct 16, 2014.

  1. bluedoggiant, Oct 16, 2014
    Last edited: Oct 16, 2014

    bluedoggiant macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA
    #1
    Ever since I went into recovery mode to repair my disk since upgrading to yosemite, my computer mirrors the login screen to my external display. Something it wasn't doing before even on yosemite. I tried resetting PRAM but that does nothing. It's especially annoying because it adapts to the screen size of the external display.

    Any tips?

    Also, while on login screen, when unplugging and re plugging in display, settings while revert to normal.
     
  2. bluedoggiant thread starter macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA
    #2
    Just realized each time I restart my computer a new space is created! After launching mission control I had 13 desktops! Not normal!
     
  3. 3square macrumors regular

    Joined:
    Jul 10, 2014
    #3
    i'm having the same problem as well along with a few other.

    try this
    Settings->Energy Saver->Restore defaults

    but it seems like the problem come back again after a few reboot.
     
  4. bluedoggiant thread starter macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA
    #4
    That doesn't help :/
     
  5. MUT3KI macrumors newbie

    Joined:
    Oct 31, 2014
    #5
    Double trouble

    its so annoying hey! the lower res at start with the mirrored screen!

    i noticed the same thing with the new screens, does it change the desktop picture for you too?

    does anyone know how to fix this! :apple:
     
  6. bluedoggiant thread starter macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA
    #6
    Yes it also messes with desktop pictures.
     
  7. 3square macrumors regular

    Joined:
    Jul 10, 2014
    #7
    Yeah it shuffles the wallpaper around between the monitors. It's possessed !!!
     
  8. bluedoggiant thread starter macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA
    #8
    I have my wallpaper to change every 15 min randomly from an iPhoto event but now sometimes a new space will just have the default yosemite wallpaper.
     
  9. bluedoggiant thread starter macrumors 68030

    bluedoggiant

    Joined:
    Jul 13, 2007
    Location:
    MD & ATL,GA

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