Terrible pictures with Apple TV
I’ve got several Apple products including a MacBook Pro running Mavericks. For some reason, when I want to connect my MBP to my Apple TV, the sound is okay but there’s no picture in most cases. I don’t have this problem on my iPad, iPhone or even my son’s MBP. Mick Sparrow Are both MacBooks in the same room? Because this is a network problem and I think your son is just getting much better Wi-Fi reception than you are. You can run Wireless Diagnostics (press å and click the Wi-Fi icon on the menu) and see if it recommends a different channel to reduce interference. Switching your router to use 5GHz networking (also called 802.11n or 802.11ac) will also improve reception because the 5GHz portion of the radio spectrum is a lot less crowded than the 2.4GHz frequency used by the older Wi-Fi standards. The iPad and iPhone obviously roam around the house, but they can cope with lower bandwidth because the screen resolutions are usually lower, so there are fewer pixels for each frame.
Regardless of any improvements you manage to make to your home Wi-Fi, it’s also worth experimenting with switching from AirPlay to Beamer (beamer-app.com). This seems to offer much better video performance than AirPlay.