Level 1

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Mini DisplayPort to VGA Adapter won't work on thunderbolt port

Hello

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

Philippe

MacBook Pro, Mac OS X (10.7.4)

Posted on Jul 3, 2012 11:52 AM

29 replies

NoTtSuKe

Level 1

0 points

Jul 12, 2012 7:56 PM in response to nmartinscampos

Hi my problem was fixed after update the driver from

http://support.apple.com/kb/DL1551

Hope your problem will fix.

Thank

joshuacuk

Level 2

197 points

Jul 17, 2012 10:28 AM in response to khoyland

Here's the update that might fix it for mid 2012 MacBook Pros:

http://support.apple.com/kb/DL1542

philippe217 Author

Level 1

0 points

Jul 3, 2012 12:47 PM in response to Scyanide

Thanks but I work straight Mini DisplayPort to VGA Adapter and it is not working

Mini DisplayPort to DVI Adapter and with a Mini DisplayPort to HDMI Adapter works fine

best regards

NoTtSuKe

Level 1

0 points

Jul 10, 2012 1:22 AM in response to philippe217

I also have this problem. But my Mac is Macbook Air 2012 13' with Intel HD Graphics 4000.

Shootist007

Level 6

16,709 points

Jul 10, 2012 4:23 AM in response to philippe217

Is the adapter you are using an Apple adapter or some other brand? I had problems with another brand and when I switched to the Apple brand the problem went away.

Jul 12, 2012 1:48 PM in response to NoTtSuKe

same here. new mba 13". tried with two projectors and didnt work. seems a problem with the refresh rate...

Csound1

Level 9

60,063 points

Jul 12, 2012 2:08 PM in response to nmartinscampos

nmartinscampos wrote:

same here. new mba 13". tried with two projectors and didnt work. seems a problem with the refresh rate...

And what refresh rate does your projector require?

khoyland

Level 1

0 points

Jul 17, 2012 10:16 AM in response to NoTtSuKe

Do you of a driver for MacBook Pro? The above link was for MacBook Air. I am having the same exact problem.

khoyland

Level 1

0 points

Jul 17, 2012 11:00 AM in response to joshuacuk

That update fixed the issue on my 2012 MacBook Pro. Thanks.

khoyland

Level 1

0 points

Aug 14, 2012 10:49 AM in response to Wunderkind

Anyone else have to restart their computer after connecting a projector? If I do that that it works but if my computer is on before I plug in the projector it won't display.

Aug 25, 2012 6:23 AM in response to khoyland

After troubleshooting the above issue, I can confirm that for solution to work consistently one needs FIRST to connect MacBook Pro to a projector and only THEN reboot it into a safe boot.

Nov 24, 2012 6:35 AM in response to NoTtSuKe

do you have one for 2010 mid 13inch macbook

Feb 13, 2014 2:11 AM in response to NoTtSuKe

I tried to install this but it said I nedd OS X 10.5 or later when im running 10.7? But yes I am having the same issue

Aug 3, 2015 8:42 AM in response to Wunderkind

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Mini DisplayPort to VGA Adapter won't work on thunderbolt port