Clamshell mode vs sleep

Discussion in 'OS X Mountain Lion (10.8)' started by archdelux, Oct 14, 2012.

  1. archdelux macrumors 6502

    Oct 12, 2008
    I use my MacBook pro With an external display so that I have dual monitors. After upgrading to mountain lion from snow leopard, when I close the lid of my computer, it doesn't sleep but goes into clamshell mode. How do I change this?

  2. colloc macrumors member

    Jul 27, 2012
    Have you tried turning off your external display before closing your Macbook lid?
  3. switon macrumors 6502a

    Sep 10, 2012
    RE: clamshell mode...

    Hi archdelux,

    Clamshell mode is considered a feature by if you want to sleep your AC powered and external monitored MBP, you either leave it open, click the Apple menu icon, and select Sleep, or you can close it, wait for the external monitor to reawaken, click the Apple menu icon, and select Sleep.

    As you state, the nvram trick appears to work on only certain MBPs but not all. Perhaps someone else has found a final "fix"?

  4. archdelux thread starter macrumors 6502

    Oct 12, 2008
    well, that would work (as would putting the computer to sleep before shutting the lid), but I want to change the system to accomodate my needs, not the other way around.. It seems that there could be an easy fix to just get the external display to work as it did in snow leopard..

Share This Page