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Apple Mini DisplayPort to VGA is a firmware update that addresses intermittent flickering and compatibility issues such as no video on some external displays when using the Mini DisplayPort to VGA Adapter on your Mini DisplayPort enabled Mac.

The Mini DisplayPort to VGA Adapter firmware update will be downloaded to the Utilities folder and will automatically launch to update the firmware on the Mini DisplayPort to VGA Adapter.

The Mini DisplayPort to VGA Adapter must be plugged into your Mac and a compatible VGA display. The Mac power adapter must be plugged into a power outlet.


Mac OS X 10.5 or later

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Apple Mini DisplayPort to VGA User Discussion

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ramgopalmadasu Member IconComment+1

I wonder when will they issue an update for the Mini DisplayPort to DVI adapter. I am having a problem with the video in the latest 24" iMac on the primary screen when I connect my secondary screen. When I take it off while the video is running, the video goes back to normal without any flickering.

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Version 1.0
misha Member IconComment+1792

Hmm...I wonder when Apple will release an update that fixes the flickering issue with the built-in display on new MacBook Pros...

Reply2 replies
Version 1.0

I don't seem to have that problem with mine. When does it usually happen? Watching video?


No, just randomly. Search "MacBook Pro screen flicker" in the support forums at Apple, there's a ton of posts about it. The top 2/3 of the screen will flash black for a split second. Sometimes it happens a lot (50x a day) sometimes it never happens.

Some people think it has to do with using the 9600 vs 9400 graphics chip. It happens for me with both. Some people have had Apple swap their logic boards to no avail, either. Maybe they fixed the issue in newer models (I got mine right when they came out last year), but they certainly haven't figured out a fix for those who bought early...

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Current Version (1.x)


Downloads 3,899
Version Downloads 3,896
Type Utilities / System
License Updater
Date 17 Mar 2009
Platform OS X / PPC 32 / Intel 32
Price Free
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