Security bug - full excess to any one

Discussion in 'macOS Mojave (10.14)' started by Baletin, Feb 8, 2019.

  1. Baletin macrumors member

    Joined:
    Apr 14, 2012
    #1
    I'd like to share a very strange and amazing bug which I discovered by chance and almost had some troubles with a colleague.

    I work on MBP with the last MacOs and recently connected it to a second monitor via Thunderbolt port. The issue I discovered by chance is this:

    When I close the lid without external monitor connected, the system with lock itself and ask for the password when the lid is raised.
    I expected that the MBP will be in the "locked" state when I left for a lunch closing the MBP lid (external monitor connected).

    When I came back and raised the lid - the system was UNLOCKED - been in the exact state before I closed the lid. If my colleagues open the lid when I am out, they could see anything on the MBP.

    I reproduced this behavior multiple times: be aware - the system will stay open when you close the lid with external monitor connected via thunderbolt.

    Could you please try to reproduce the bug on your systems - we need to reproduce it on different machines in order to get it fixed.

    Thanks
     
  2. Ritsuka macrumors 6502a

    Joined:
    Sep 3, 2006
    #2
    If you connect an external monitor (and a keyboard too), closing the macbook will just disable the internal monitor, it won't go to sleep.
     
  3. Baletin thread starter macrumors member

    Joined:
    Apr 14, 2012
    #3
    How could I know?? And how can I "switch" disabling system on?

    In addition, most of the times the system is locked when I close the lid even if external monitor is connected.
     
  4. H2SO4 macrumors 601

    Joined:
    Nov 4, 2008
    #4
    Does it make a difference how the monitors are set up, (mirrored displays vs extended desktop)?
     
  5. Baletin thread starter macrumors member

    Joined:
    Apr 14, 2012
    #5
    my second monitor is an extension, I never tried mirroring, thus cannot confirm the issue appears with mirroring settings, but I should say that even I SWITCH OFF the external screen before closing the lid the issue appears - ... if I turned the second (extension) screen on BEFORE opening the lid!
     
  6. H2SO4 macrumors 601

    Joined:
    Nov 4, 2008
    #6
    Was just wondering if when in mirror mode the computer ignores the fact you’ve closed the lid as you have the same info on screen two?
     

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