I have contacted Samsung Support (Mar 6).
This started for me 2 weeks ago.
Short version, the problem is with the app (Netflix) which is not controlled by Samsung. Samsung just releases the update on Netflix's behalf. They recommended I contact Netflix with the issue.
Samsung RU8000 TV.
Yamaha RX-V585 receiver.
Netflix has provided at the end of Feb 2020 a software update that is causing PCM output sound issues with multiple Samsung TV models while plugged into various brand receivers. As soon as the TV detects a device connected via HDMI that is Dolby Digital (Perhaps specifically DDAtmos) compatible, the TV greys out most options under Sound Expert Settings, blocking PCM output, and forcing Dolby Digital +. This problem is NOT found in other apps (YouTube, Disney+, etc.) it is ONLY while Netflix is running, and while the DDAtmos HDMI device is connected.
Good luck getting Netflix to care. They outright told me that they don't make the app, Samsung does. When I pressed the issue, I was asked if I can access Netflix on my other devices. When I said yes, their reply was literally "is there anything else I can help you with today?"
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Samsung doesn’t seem to care. I spent two hours on the phone with tech support, abs another two on chat the other day, and in the end they are telling me that “ We would like to inform you that, as the sound works properly when the sound bar is connected to Optical cable, there seems to be no issue with the TV. We also recommend to connect the external devices via Optical cable to have best sound output from apps. ” Complete bs answer.
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