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I successfully mirrored my internal MacBook Pro display to a 3rd gen Apple TV. The resolution shifted as expected, audio in the connected TV works, video looks fine, but when I try to take the cursor past about 40% to the right I seem to hit an invisible wall.

This makes it impossible to put some videos full screen, as I can't reach the controls for this, and otherwise makes it awkward to operate stuff.

Is this something I should have known about, like a well-known limitation or a bug in macOS Sierra 10.12?

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  • I have the same issue with a couple of MacBook Pros running 10.13. I haven't found a solution yet, but I'm hopeful one exists. – Gray Loon Feb 11 at 14:25
  • Thanks @Gray Loon. I'm not currently where the Apple TV is now, but I will investigate further next time I'm at it. – MiB Feb 11 at 14:39
  • @GrayLoon, I found a discussion where it was suggestedto go to Display in System Preferences and make sure to choose "Best for Airplay display". I think I did that and it didn't help, but maybe something for you to try? A restart was also suggested, I think I did that too, but I don't remember. – MiB Feb 12 at 8:49

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