On Jul 26, 2012, at 10:44 AM, LuKreme wrote:

>> AirPlay Mirroring requires a second-generation Apple TV or later, and is 
>> supported on the following Mac models: iMac (Mid 2011 or newer), Mac mini 
>> (Mid 2011 or newer), MacBook Air (Mid 2011 or newer), and MacBook Pro (Early 
>> 2011 or newer).
> 
> That would explain why it is not working now on my MacBookPro. I figured the 
> AppleTV was waiting on an update.
> 
> THat is a pretty drastic cutoff there, one year old machines?

I believe the reason for this is because it uses Intel's Quick Sync Video 
technology, which is only present in Sandy Bridge CPUs. It's pretty new, and 
currently, Apple is the only one using it, AFAIK.

Wikipedia has a little more: http://en.wikipedia.org/wiki/Intel_Quick_Sync_Video

        Matt_______________________________________________
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