8 Replies Latest reply: Oct 23, 2013 6:39 AM by wcs0816
wcs0816 Level 1 (5 points)

So I updated the Thunderbolt firmware yesterday to 1.2 through the App Store only to have my external monitor stop functioning afterwards.  When I click on Displays in System Preferences, the monitor registers and the screen blinks blue when I connect/reconnect, but still no video.  The adapter, Monoprice's part number 5311, was attached during the update and I had video all the way through the grey bar when it restarted.  Can the firmware update ruin such a thing?


- Bill

MacBook Pro, OS X Mountain Lion (10.8.3)