5 Replies Latest reply: Nov 28, 2012 5:29 PM by judahman
judahman Level 1 (0 points)

I recently installed the latest Mountain Lion on my mid-2010 MacBook Pro 15 inch. When I plugged the Samsung SyncMaster into the monitor port, although the connetion had worked flawlessly before under Snow Leopard, now the OS crashes! My monitor is now useless to me.


So, I'm urgently looking for the cause and a cure.


Thank you.

MacBook Pro, OS X Mountain Lion (10.8.2), Mid-2010 MacBook Pro 15 inch
  • Colin Neeson Level 1 (30 points)

    Do you by any chance use InsomniaT?


    When you say the Macbook crashes, does this mean it gives a kernel panic and you need to reboot?  If so, what is the error that it indicates on the screen?

  • judahman Level 1 (0 points)

    Sorry for not being more clear.  The screen goes black and the OS automatically reboots with a multiingual message in the center of the screen that the machine had to reboot beause of an unidentified problem, and then the system completrs the reboot (I can choose whether or not to open the windows or apps active at the time of the crash/reboot).  I am NOT geting a kernal panic, thank goodness.

  • judahman Level 1 (0 points)

    Still looking for the cause and cure of the sysetem rebooting whenever I plug in my monitor. BTW, this reboot also happens when I plugged into the same port a digital projector. Looking for a cause and a cure.

  • Colin Neeson Level 1 (30 points)

    What you are seeing with that screen is actually a kernel panic.   It's likely that there is some software you may have installed is not compatible with the new OS. 


    Do you have any software installed that mucks around with video, etc?   I asked about InsomniaT because it appears to be one of the culprits.


    You may also want to have a look at:



  • judahman Level 1 (0 points)

    Do not have installed "InsomniaT " (never heard of it, actually). Other than Flash, I have no video aps installed (will install iMovie once I get this issue resolved, however.