MBA doesn't automatically detect display connection

Discussion in 'MacBook Air' started by eekcat, Jan 30, 2012.

  1. eekcat macrumors 6502a

    Apr 5, 2010
    My MBA (13" 10.7.2) has recently developed a problem where it doesn't automatically detect when an external display has been connected or disconnected. For example, I'll open the MBA up, connect a display through the thunderbolt connector, and it won't activate the external monitor until I tell it to ''detect displays," and when I disconnect it, it seems to have no idea that it needs to return to the MBA display being primary. I'm not sure if this is a hardware or software issue (as it works fine 90% of the time after I give it a "detect displays" kick). :confused:
  2. BayouTiger macrumors 6502


    Jul 24, 2008
    New Orleans
    I am getting the same thing a lot lovely, but it was working perfectly for the past few months. Just started missing the display recently. BTW, the other ports work fine on the display, just not the screen until you hit the detect button in preferences, or reboot.

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