MBP with external screen issue

Discussion in 'MacBook Pro' started by ^squirrel^, Mar 26, 2008.

  1. ^squirrel^ macrumors 6502a

    ^squirrel^

    Joined:
    Apr 4, 2006
    Location:
    England
    #1
    Hi,

    My set up has been running fine for the last month and now it's playing up.

    I run a Samsung 20" screen from my MBP set as mirroring. Connected to my laptop is the USB keyboard and mouse.

    Normally when i close the lid the laptop sleeps, then i press any key and the machine wakes up and displays on the external screen.

    Problem now is when the machine wakes up, it goes back to sleep within 3-5 seconds. When i eventually give up trying and open the laptop lid, it doesn't display a screen on the laptop, but it does on the external. So i have to reboot.

    Can anyone help with this issue, as im sure this is happened before.

    many thanks
    Darren
     
  2. Vedhead macrumors member

    Vedhead

    Joined:
    Jan 13, 2008
    #2
    I have that issue..but I think its only when the ol' MBP isn't plugged in.

    Is yours unplugged?

    Also, instead of a reboot, try going into Displays and hitting Detect Displays...that should find the MBP screen for a switch back...
     
  3. aristobrat macrumors G4

    Joined:
    Oct 14, 2005
    #3
    Same here. Only happens when I forget to plug the power adapter into my MBP.
     
  4. ^squirrel^ thread starter macrumors 6502a

    ^squirrel^

    Joined:
    Apr 4, 2006
    Location:
    England
  5. DannySmurf macrumors 6502a

    Joined:
    Jul 7, 2005
    #5
    Had this problem with my first-gen MBP. If I start it running on battery with an external monitor, it goes into an "infinite sleep loop." I've just accepted it as a reality and make sure to plug my computer in before I started it up closed.

    However, from the original poster's comments it doesn't sound like this is actually the problem; rather, that it was doing what he expected before, but now it's not. For that, I don't know of a solution (unless his power adapter has come unplugged and he just hasn't noticed).
     
  6. ^squirrel^ thread starter macrumors 6502a

    ^squirrel^

    Joined:
    Apr 4, 2006
    Location:
    England
    #6
    Just to update you with what i've tried.

    I just tried it without the battery connected and still the same issue.
     

Share This Page