regular PRAM resets for graphics problems

Discussion in 'OS X Yosemite (10.10)' started by mentaluproar, Jan 17, 2015.

  1. mentaluproar macrumors 68000

    mentaluproar

    Joined:
    May 25, 2010
    Location:
    Ohio, USA
    #1
    My rMBP has, since day one, disliked external monitors. After the OS loads and I log in, its all fine, but boot up and log in resolution freaks out every now and then. There are black bars on the top and bottom, and everything is a pain to read. This can start sporadically, but it will always start if I boot with the HDMI port in use. It wont go away until I reset the PRAM.

    Today, I had to reboot because bluetooth kept disconnecting. The graphics were screwed up again. A PRAM reset fixed both.

    Why do I need to reset the PRAM so frequently?
     
  2. satcomer macrumors 603

    satcomer

    Joined:
    Feb 19, 2008
    Location:
    The Finger Lakes Region
    #2
    Do you live in the Northern climate zone where it is winter? I ask because it sounds as if static electricity is building up on your Mac from dry heat in your place.
     
  3. mentaluproar thread starter macrumors 68000

    mentaluproar

    Joined:
    May 25, 2010
    Location:
    Ohio, USA
    #3
    Actually I do, but this happens in the summer too.
     

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