HT1557: About firmware updates for Intel-based Macs

Learn about About firmware updates for Intel-based Macs
jamesfromwy

Q: mbp screen goes black on startup

I recently installed snow leopard om my mbp. It starts to load when it turns on.The screen lights up and the Apple logo appears. The timing gear appears  and goes through the sequence. The screen goes blue and then goes dark. You can barely see,  with the aid of a flashlight the logon account screen in the back ground.It is very dark. I can turn the mbp off and then start back up in the safe mode  It comes back up and loads OK.  I then  have to restart it .It works after that operation 

MacBook Pro, Mac OS X (10.6.8)

Posted on Apr 4, 2012 12:58 PM