periodic Dual-link display problem with new adapter

I don't yet know what conditions cause it but I'll be working with my MacBook Pro connected to my 30" display when the screen "shifts" and then becomes practically unreadable. I have to disconnect the adapter and reattach it. The photos below show a detail of the problem and then how it looks after reconnecting the adapter.

User uploaded file

Here are two movies showing the problem.
http://www.plate.net/dvidualinkadapterproblem/MVI_2327.mov
http://www.plate.net/dvidualinkadapterproblem/MVI_2328.mov


I have not yet called Apple, but has anyone else seem reports of this?

MacBook Pro, Mac OS X (10.5.6), Disclaimer: I benefit financially from any purchase you make from Automatic Duck

Posted on Dec 23, 2008 8:42 AM

Reply
228 replies

Jan 17, 2009 11:44 AM in response to Wes Plate

I have the same problem with my macBook Pro (late 2008) when using a Belkin FLIP KVM switch. I have a 30 " Apple Cinema display. When switching from a PC to Mac, the display has snow. I can get rid of the snow by removing the adapter plug and then replacing it. It cycles the video output of Mac and then the display is clear as you would expect.

I did not have this problem when I was using a PowerBook G4.

There is obviously something different about the signals in the DVI adapter for the Mini Displayport of my MacBook Pro.

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periodic Dual-link display problem with new adapter

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