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Not my post as I myself don't know but the articles comments have this:

jkbx Nov 8, 2012
Would this kind of resolution work with Mac OS X?

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chrisheinonen Nov 8, 2012
@jkbx Works at 2560x1080 just fine with my MacBook Air 2010 model.

at: http://fyre.it/7cwfhp.4
 
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