I have the same issue here too. With this many people having the same issue it’s obviously a software issue on samgsungs end. Have they acknowledged it yet? Can’t they just immediately release a patch separating the “tv arc” and “d.in” to seperate channels until they can problem solve what the issue is?
have an atmos ready OLED lg tv, worked perfectly a few months back, but has been stuck on “d.in” since then. I’ve tried all the solutions in this thread to no avail. Also, the sound bar can’t pass through a 4K HDR signal without sacrificing atmos to do so. So I have to choose between HDR or atmos on a $1600 sound system.
This has been one of the worst purchases I’ve made. Samsung need to up their game.
It has become clear that Samsung doesn't really want/prioritize any improvements to HW-K950 anymore. With a new model coming this summer and the lack of interest from support, it seems that we are pretty much left to complain until our posts are eventually pushed way down in the forum.
And if I'm wrong, I will gladly accept any evidence by Samsung support telling otherwise. Feel free to show me that Samsung actually does anything to help with all the complaints on the HW-K950. Because the firmware updates are lacking and far in between. Not everything can be fixed by buying new cables, resetting (and resetting, and resetting) and staring endlessly at manuals.
One way perhaps to ensure Samsung does not take its customer granted is to start leaving Honest, Negative reviews for this sound bar on Amazon, Samsung Site, Best Buy, Frys etc. - so that potential new buyers are aware of the various issues and Samsung's total apathy towards customers.
I am having the same issue of D.IN not switching to TV ARC with the latest N950 model too. I am using LG C8 and both the TV and Soundbar were working fine 2 weeks ago when i first got it. But now is by "luck" the D.IN will switch to TV ARC....
I would not call it fixed but I was able to get ARC working on my k950.... Do all of you have samsung TVs as well.... Maybe with the one connect box? I unplugged all the hdmi cables and the the cable to one connect, then physically removed power to the TV for 15 minutes plugged back in and ARC was working