Previous 1 2 Next 27 Replies Latest reply: Aug 3, 2015 8:42 AM by BobbyDale
philippe217 Level 1 Level 1 (0 points)



I bought 2 new Macbook Pro 13' , 2.9 Ghz Intel Core i7, with 8 Go 1600Mhz DDR3,  Intel HD Graphics 4000 512 MB, Mac OS X Lion 10.7.4 (11E2617).


I have connected a Mini DisplayPort to VGA Adapter in order to show presentations on different LCD projectors but  no image appear.


The external monitor is detected but no image is shown. I have tried to change the frequencies: parts of the screen appears but no a correct image. I have the same symptoms with the 2 Macbook Pro. Using old Macbook Pro with the same Mini DisplayPort to VGA Adapter, the slides are showns normally.


I make a test with a Mini DisplayPort to DVI Adapter and with a Mini DisplayPort to HDMI Adapter and everythings works correctly with both adapters.


Does anybody has a solution?


Thank in advance for your help



MacBook Pro, Mac OS X (10.7.4)
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