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grahamperrin

macrumors 601
Jun 8, 2007
4,942
648
@Hodapp for cases such as this, people should plead for Apple to publish lists of known issues.

Each such list need not be comprehensive; just a shortlist of things that might seriously upset the customer.

http://www.apple.com/feedback/

In a few days' time you'll be able to give the operating system a one-star rating, or whatever rating you think is appropriate (given the lack of publicity about issues such as this).

True: what you test now may be not the final golden master, but I doubt that a problem such as this can be properly addressed in the few days that Apple has left.
 

Phil A.

Moderator emeritus
Apr 2, 2006
5,800
3,100
Shropshire, UK
I updated my daughter's MacBook to sierra last night and it still works fine to a 1440p monitor via HDMI using the official Apple adapter
 
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