rMBP unable to see monitor

Discussion in 'Mac Accessories' started by CultHero, May 31, 2014.

  1. CultHero macrumors 6502

    Joined:
    Mar 20, 2007
    #1
    I have a new LG 34UM95 that has been working flawlessly for a few weeks now. My wife was working on a usb device for our son and I came home to a white screen that wouldn't disappear until a hard reboot.

    Now, the rMBP won't see the monitor until I power down the monitor (pull plug) and start it back up.

    If I disconnect the TB cable from the rMBP to the monitor the computer tells me I incorrectly ejected a disc (the hard drive connected to the monitor) but it won't connect visually.

    I have reset the PRAM and the SMC and repaired the permissions. What else could be causing this.

    Computer is also taking a long time to restart. Much longer than it used to.
     
  2. metril macrumors newbie

    Joined:
    Jun 2, 2014
    #2
    @OP

    You need to provide more information.

    What gen RMBP? What OS version? You left out the most important details.
     

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