Originally Posted by ZedWings
Only HDMI 1 is 4K enabled on this projector.
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I am not understanding this statement at all.
Isn't HDMI 1 4K up to 30Hz and HDMI 2 4K up to 60Hz?
Besides, I am not even sending it a 4K signal in this case. I have tried it with BluRay and DirecTV both sending 1080P.
Also, FYI, just tried it with a 3' Monoprice Certified cable and still no sound through HDMI 2.
Edit 12/23 Got it to work!
Here was the issue, the devices I had connected to the 4K 60Hz input were likely not up to HDMI 2.0 level. They were an older DirecTV box and Bluetooth player.
I connected instead a 4K Firestick and it puts sound through to this input. Found the answer on this Dennon forum: http://denon-uk.custhelp.com/app/an...cted-to-hdr-tv
which stated "This behaviour is caused by the incompatibility of the older HDMI 1.3 compliant device and the modern HDMI 2.0 (or later) TVs or projectors. In most cases, you will also not get any audio when you connect the player directly to the same input of the TV."
I guess the issue was obvious, but it wasn't something I was thinking of. I did think perhaps it needed a 4K input to have sound, so in my trouble shooting I had set my AVR to 4K upscale, but that didn't help with the sound, since the source was still likely HDMI 1.3.
My AVR has two HDMI out. So I think it will work to run one to HDMI 1 and the other to HDMI 2 on the projector. Then I should be able to still run my old HDMI 1.3 devices as well as the 2.0 devices and have sound. Or those old devices I could connect via Optical or Coax which I already know works.
Edit2: Here is what happens with both 1.3 and 2.0 HDMI devices connected to my AVR and both HDMI outputs going to the UHD50, I get sound on both inputs, but, for Netflix at least, it drops the resolution down to HD from 4K even on the 4K 60hz Projector input. When I disconnect the HDMI cable going to HDMI1 then I get 4K from Netflix on HDMI2. So dual HDMI doesn't help, for Netflix at least, it defaults to the lowest of both connections. It works though to do Coax or Optical out from the 1.3 devices and plays with sound when connected to HDMI2 on the Projector. So that is what I will do in order to have 4K 60Hz content along with old 1.3 devices.