I have reconnected my cables and boxes several times and the audio drop-outs sometimes go away for a while, but always have come back. This is a frustrating problem because it is difficult to reproduce. One day I will turn the TV on and I will get audio drop-outs right away, usually at repeatable intervals (i.e. every 49 seconds, every 3 minutes, etc.), and then the next day I will watch several shows in a row and not get an audio drop-out? The drop-outs are not coming from the content since I can replay the same recorded show on my upstairs X1 box with no audio drop-outs. The drop-outs don't care if I am going through my Pioneer HDMI receiver (as pass through) or directly connected to the TV (and yes I have tried several high quality calbes). I even have swapped my upstairs X1 box with my downstairs X1 box and the audio drop-outs stay with my Samsung UHD 4K TV.
I have read that the X1 audio drop-out problem is solved (mostly) by swapping out a PACE X1 box for an ARRIS X1 box. Does anyone know what firmware is required on an ARRIS X1 box to solve the problem? I believe I already have an ARRIS box, but am not sure if I have the right firmware.
... View more
I am also having the X1 audio drop-outs with my 2014 HU8500 Samsung 4K TV I purchased in October of 2015. Are most of the audio drop out complaints people are reporting with Samsung TVs? I have had Samsung repair out to my house twice believing this was a Samsung hardware issue but now believe it is an X1 issue or a Samsung firmware conflict with the X1 box. I have had the same X1 and Pioneer home theater setup with my older Vizio TV and never had any audio drop-outs when using the surround sound through the Pioneer or just using the HDMI pass through. So this makes me think it is some sort of Samsung-Comcast HDMI handshake issue (firmware is my best guess).
My experiments so far show that the audio dropouts are far less likey if I plug the X1 HDMI cable into the Samsung TV after the TV is turned on (versus turning on the TV with the X1 already plugged in)? The X1 box is apparantly always on so the only way to sequence the HDMI connection is to plug it in after the TV is already booted.
... View more