Apple TV 4K TvOS 12

After installing TvOS 12, apple tv 4k doesn't communicate with my Rotel RAP 1580. No audio is coming out of the AVR. In the apple tv audio and video menu, the Dolby Vision option has disappeared also.

Anyone has an idea of what is going on?

thanks,

Apple TV 4K, iOS 12

Posted on Sep 25, 2018 3:32 AM

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Question marked as Top-ranking reply

Posted on Sep 25, 2018 5:49 AM

Verify Settings﹥Video and Audio﹥Audio Output﹥HDMI

Verify Settings﹥Video and Audio﹥Audio Format﹥Auto


For Dolby Vision, try Reset Video Settings, and run the initial test of capabilities again.

About 4K, HDR, and Dolby Vision on your Apple TV 4K - Apple Support

Have HDMI Output as YCbCr (and your TV too for that HDMI port)

Have Match Content﹥On for both options

Does your TV show Dolby Vision detection when applicable?

18 replies
Question marked as Top-ranking reply

Sep 25, 2018 5:49 AM in response to angelfromalpharetta

Verify Settings﹥Video and Audio﹥Audio Output﹥HDMI

Verify Settings﹥Video and Audio﹥Audio Format﹥Auto


For Dolby Vision, try Reset Video Settings, and run the initial test of capabilities again.

About 4K, HDR, and Dolby Vision on your Apple TV 4K - Apple Support

Have HDMI Output as YCbCr (and your TV too for that HDMI port)

Have Match Content﹥On for both options

Does your TV show Dolby Vision detection when applicable?

Oct 4, 2018 3:58 AM in response to angelfromalpharetta

Have you or adhndh anything to report from your contacts with Rotel? I called my dealer here in Atlanta, Evolution Home Theatre, and they weren't aware of any newer updates available. They're really great guys there, and very knowledgeable, so I've not pursued the Rotel angle further, but I've been watching this thread hoping to see if there was a fix that had worked for anyone that they somehow were unaware of. I miss the use of my ATV. Thanks all!

Oct 8, 2018 7:18 AM in response to angelfromalpharetta

MAN! I have been struggling with this. When I changed video to 4k after the update, I thought I broke it! I changed hdmi cables, tried other apple tvs etc to no avail. Anyway thanks for the heads up about the update. I just emailed them, but this downtime to ship and get this to work is pretty poor! I really hope this restores my audio...paid a ton less than a year for my system to have this type of issue sigh!

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Apple TV 4K TvOS 12

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