OK, I have the Q80R and a Roku. Using the Roku remote does activate the Roku, will turn on the TV, and even switch the Denon's input, but it will not actually turn on the Denon. Does this actually turn on the Denon for you?
Yes it does turn on the Denon receiver after going to settings on the tv and entering The tv icon it will show a program and than pressed the home button on the ruko remote and you will see the receiver on the top tv and your good to go
So one needs a Roku becuase that, not the Samsung, is turning the AVR on.
If one turns the TV off, it shuts off the AVR. If one truns on the TV, it does not turn on the AVR. So go out and spend money for a Roku?
And it would help readers' understanding if the one who discovered that one needs a Roku to go through more than one step to turn on the AVR would use punctuation.
Ok here is what I found. I have a Denon S540 receiver connected to the ARC HDMI on a Samsung Q6 tv.
If the last tv source I use is through the Denon receiver (for instance: a Firestick connected to the Media Player HDMI port on the receiver) and I turn it off, it "will not" turn on the next time I turn on my tv.
If the last tv source that I use is not connected through the Denon receiver, (for instance: Directv connected to the HDMI 2 port of the tv or Netflix app on the tv) when I turn the tv off, then the receiver "will" turn on the next time I turn on the tv.
So my solution was to use the tv's HDMI inputs for my Firestick, Xbox and Directv. The audio on all the sources including tv apps still runs through the Denon receiver (ARC).