My Roku Ultra LT (2019) won't establish an HDMI connection unless I power reset. The device is on and connected but it doesn't show a connection unless I unplug the power to the Roku and then plug it back in.
I have a Roku Ultra that is connected to a Denon S750h AVR which in turn connects to a JVC DLA-NX5 projector.
Things I have done to try and fix it, nothing has worked:
1. Changed out the HDMI cables for new ones (high speed).
2. Updated the Roku to the latest version.
3. Changed settings>display> from "auto-detect" to 4K 60Hz. Note that when I do this after I've repowered and can see the Roku, all seem to works. The next time I turn it off and then turn it on again I need to go through the whole repowering thing again and then find that display is back to "auto-detect." If I leave it on auto-detect then Netflix only shows HD and not 4k UHD. When I go and manually change the Roku display settings to 4K 60Hz Netflix shows 4k UHD.
Very frustrating.
