2 Replies Latest reply: Oct 22, 2011 1:37 PM by mang28
mang28 Level 1 (0 points)

When connecting my Thunderbolt Display to my MacBookPro


  Model Identifier:          MacBookPro6,1


  Boot ROM Version:          MBP61.0057.B0C

  SMC Version (system):          1.57f17


I do not get a display on the Thunderbolt.


I have checked the Diplay Settings and the only 2 tabs are DISPLAY and COLOR

I do not have an ARRANGEMENTS TAB


When I look for the ARRANGEMENTS TAB I get the message

"The Arrangement tab of Displays preferences is hidden because you only have a single display attached to this computer."


I have the Thunderbolt connected to the MagSafe port and to the Thunderbolt port and the Thunderbolt is plugged in to a power source.


I have tried the MacBook Pro EFI Firmware Update 1.9 and get this message:

"This software is not supported on your system."


Can someone help me or direct me to another discussion


Thank You!!

MacBook Pro, Mac OS X (10.6.8)