Random HDMI signal loss with sony bravia tv and apple TV 4k solution when using HDR. FULL PROOF SOLUTION
I have had the dreaded HDMI signal loss and black flickering screen . I had switched to the hi end belkin cables that have been recommended without success. But I now have, for me a full proof solution.
My SONY bravia was set up to turn on when I switched on the apple tv remote. This was the problem. I de synced the apple TV so now I switch on the TV followed by the apple tv and select the input manually and now I have absolutely no issues. In the apple menu i switched of the remotes ability to switch on the TV. This solution has proved faultless for several weeks. I suspect both devices were attempting to switch to the correct settings and not communicating correctly.
Slightly dull to have no sync set up but much better than the constant flickering black screen of death !