updated 09:50 am EST, Mon January 26, 2009
Apple video adapter issues
Apple's recent Mini DisplayPort to Dual-Link DVI adapter may be causing problems with 30-inch LCD displays, complaints on Apple's support forums suggest. The adapter is mainly intended to connect modern MacBooks, MacBook Pros and MacBook Airs, which are currently the only devices that support Mini DisplayPort. Users of the adapter are reporting a variety of errors however, ranging from graphics corruption to temporary blackouts.
Although some Apple tech support staff are said to be claiming that the adapter will only work with the highest-end Cinema Display, glitches appear to be unrelated to brand, affecting Apple monitors as well as screens from Dell and Samsung. Apple's own product page indicates that the adapter should function with any 30-inch screen with a DVI port.
It is unclear if the adapter is directly responsible for errors however, as deleting the com.apple.windowserver PLIST files and then resetting PRAM may diminish problems. The strategy is not working for everyone though, and it is not clear if and when Apple may have a solution prepared.