If it helps, Ive been onto Stadia chat today. I had the same issues when my Stadia arrived today, having used it on a 100mb connection but solved it by plugging into my receiver rather than the TV. I think the issue is that while you might have ARC/passthrough/ 4K TV and receiver, Stadia relies on having eARC which is a new higher bandwidth ARC port which a lot of TV and receivers dont have. So my TV which was new last year (Samsung) was outputting in PCM not dolby digital (the PS4 works fine as is DD) but the receiver can cope as it doesn't rely on pass though via the TV.
So it's a pain, but if you otherwise have a modern set up it should work.
I am also a new samsung TV user of the year 2019 and I have the exact same problem, but neither the 2020 samsung televisions are compatible with eARC, samsung does not use this standard of audio or video transmission, there are many complaints, why Samsung 8k TV was purchased and does not have eARC. I really do not know which brand of Televisions uses or allows this transmission standard.
The trouble is, you then also need a receiver that handles 4k or at least does 4k pass through. Mine is a high end 9.2 receiver that I had no intention of upgrading at the cost of several thousand just because Google won't use something other than PCM or provide a backward compatibility.
At present I have a TV that I paid money for to handle 4k and HDR, and a sound system that can handle the best sound there is. But because you must plug stadia in to one or the other then you are stuck if you haven't got eARC on both! Bloody stupid.
Fact is, PCM is licence free and Stadia would have had to pay for Dolby digital (I think). And when you look at the history of Google and Android, they have always tried to use licence free stuff even at the expense of user experience.
The best solution I have found is to plug Chromecast Ultra into a device that splits the 4k and PCM stream into two separate. One then goes to TV and other to receiver and for a much more modest cost then new TV and receiver. Trade off is HDR not available. See my previous post here with Amazon link:
Hi Makaveli, my amp is a Yamaha HTR 3069 which is their entry level one. Perhaps I'm just lucky that it appears to work and HDR does work. Destiny 2 was quite impressive and the wireless connection says excellent so it seems to say the right things on screen. I also have a high speed HDMI cable which can deal with 4K, sounds like we are all as up on this as each other so we understand how these things should be plugged in. I have to say though that it failed once on 5.1 after working properly and I wondered if getting the right broadband connection when switching on isn't entirely stable, despite speed which was still shown as excellent. I do think Google need to change the setup instructions though as clearly plugging into TV isn't always the solution.
Yep. That's exactly the problem. Most people don't have state of the art TV's and receivers. Most people already have a completely good system that works with everything else in their system. The whole point of stadia is that you don't need to buy anything. But in order to play in 4k on your chromecast you have to have a TV that supports 4kHDR and eARC and also have a receiver that supports 4K HDR and eARC. I can guarantee you the majority of the people that are on stadia do not have these or come anywhere close. What get's me is that I started this thread almost 6 months ago. Still no official comment in here from google. Lot's of other threads have had google responses but they just seem to ignore this one.
Lack of response is shocking, especially after I've drawn their attention to it multiple times in interactions on the phone and during DM on twitter. They say they are looking into it but I think just actually ignorantly saying that and don't understand what the issue is. They compensated me for poor service in handling my query but have still failed to answer it sufficiently.
I'm usually a big Google fan, in comparison to other solutions but just think in this case they have really let people down.
Come on @GraceFromGoogle give us a full and complete explanation of what "looking into this" means in terms of the future comparability for people who have this issue.
Perhaps I'm lucky that it works, it also works on a soundbar I have from 2012 so I'm still not clear on whether if using a receiver you just need something that decodes PCM with ARC pass through (as it definitely isn't eARC) and you need eARC if plugging directly into the TV. Google just need to be clear that's what's needed, it's their reputation and PS5 etc is just around the corner. What's the point in avoiding it? They could just say it on their website and print it on the box and in the instructions. I think Stadia is impressive now it's working but I'm probably lucky it does. It was nearly sent back on the day of arrival (had I found out where to send it) and payment on credit card disputed if need be but happily all ok now- with one quirk that sometimes needs the Chromecast to be unplugged then plugged back in to get 5.1, why, I have no idea.
You can add me to the list of dissatisfied customers. My CCU is plugged into my Yamaha receiver and I only get a 2.0 PCM signal. Every other device (Xbox/BluRay/Sky etc) sends 5.1 to my receiver with no issues. In fact the CCU does so as well when watching movies. Does one really have to have an almost brand new receiver to get 5.1 out of this thing?!
I checked the manual for my receiver and it does say it support multichannel linear PCM too, which I assume means more than two channels.
Had the same problem to start with.
Bought this year's Samsung 65" 4k TV. Then I got Stadia. No 4k, no HDR. Checking it out, I totally forgot it was still using HDMI 1.4 cable.
Installed 2.1 8k cable for overkill - still nothing. Well, my Denon was about 8 years old so was thinking about upgrading anyway, and bought a new Denon.
Set it up & tried again. Yep, 4k was there but, no HDR. Set the Denon to Pure Direct for the CC port and, bingo! HDR available. OMG! What a difference. Looks absolutely gorgeous.
No sign of 5.1 setting anywhere but, it's definitely outputting it. Well happy now. 🙂
Oh and yes, both TV and Denon have eARC.
Same problem here. Having tons of things working on 5.1 (PS4, Xbox, Sky, Netflix, Amazon Prime, etc.), Stadia is the only thing that does not work. So to me it will be much cheaper buying a PS5 than replacing TV, receiver, etc.