I tried the disk utlity fix to verify disk and verify disk permissions.
We have four flairs to offer! PM the Mods with a GCX screenshot (or other proof), and we'll add flair proudly proclaiming your expertise! No rank is an indication that the person is always, or even mostly, correct. However, if a response is rude, irrelevant, or harmful, please report it. Do upvote interesting questions and helpful answers.ĭownvoting questions you feel are annoying or repetitive is counterproductive. All comments should have some relation to their parent.Ĩ. Top-level comments should contain an answer to the question(s) in the post. Answers must be within the bounds of Apple’s EULA.įor a list of subjects inappropriate for /r/AppleHelp, see Guideline 2 above. People come here for help, so please don't shove them right back out the door. Rudeness will not be tolerated! Suggesting someone "Google it" is a good example of this. Fixing problems over the internet is incredibly difficult! Guidelines for Readers We're here to help, and this is the easiest way for us to do that. If posting the same question in multiple places, include links to the other threads.If posting a log or crash report, upload it to Gist.
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However, note that live video encoding is a hardware intensive task–so note your Mac will run very hot with the fans on full blast.Check our /r/AppleHelp FAQ and basic troubleshooting guide before posting.
Users have noted the app AirParrot mimics AirPlay Mirroring on pre-2011 Macs with both video and audio. Both tasks require a lot of processing resources, so without the extra hardware available on newer Macs, mirroring isn’t possible.
It scales down the video to fit on an HDTV resolution, and has to convert the colorspace from the computer’s RGB to the native YUV that televisions use. Mirroring requires the system to produce two video images, one driving the local display and one to be wirelessly delivered to the external screen.ĪirPlay doesn’t just relay video from the computer (or iOS device) to Apple TV.
Older Macs can already send video from iTunes to Apple TV via AirPlay, but they stop local playback while doing this. Without a CPU capable of crunching this task using specialized hardware, earlier Macs simply can’t transmit video fast enough without a lot of heat and screaming fans. These systems are the oldest machines capable of supporting AirPlay Mirroring because they are the first to deliver dedicated hardware encoding for H.264. AppleInsiderexplains why older Macs can support AirPlay, but not AirPlay Mirroring: It comes down to hardware advantages of mid-2011 Macs, as they received Sandy Bridge i5/i7 chipsets that included separate dedicated hardware encoding for H.264. So why can’t older Macs support AirPlay Mirroring?