Originally Posted by jch2
I'm having issues ...
I have my LG C8 65" OLED connected to HDMI1 out and my new Epson 5050UB connected to HDMI2 out. ...
Originally Posted by Mr.G
I wouldn't expect a solution from Yamaha since it involves the built-in chipset. I had a similar problem with my Denon and then my Onkyo AVR. Dual HDMI outputs can be buggy when used with active cables, in my case the 50 foot Ruipro hybrid. I got blinking on/off video and sound on the Denon when both the 4K projector and the 1080p Panasonic plasma TV were on at the same time. ....
Originally Posted by Otto Pylot
Agreed. We've seen similar issues with dual-HDM outs and just about any active cable. The prevailing thought, at least at the time, was that the dual HDMI outs share power somehow which, if you're using a power-sensitive cable (like an active cable), introduced too much fluctuation for the active chipsets.
I had these problems with the same scenario with a Denon receiver, so it's not just a Yamaha problem. Like you, I troubleshot the daylights out of this issue swapping out components and cables one at a time. Thinking it was a Denon problem, I even swapped in a Yamaha receiver. (same result) Like you, with a passive cable, there was never a problem. Like you, I needed the active cable for the bandwidth.
With any active cable to the projector, with the projector off, and both HDMI receiver outputs on, I would not get a proper signal to the TV. But, if I chose HDMI 1 output only (in this case the TV), I received signal to the TV no problem. I'm not certain of the Yamaha terminology, but mine allowed me to choose the HDMI outputs, either HDMI 1, HDMI 2, or HDMI Auto (both). Same choices with Denon - different terminology.
For me this was an HDCP issue. If the source had HDCP, it would not work. With any non-HDCP source, there was never a problem. This indicated to me that with an active cable, and a display hooked up but not turned on, the receiver or HDCP source device was being told there was an HDMI connection to a non-HDCP compliant device, therefore it would not permit any HDCP display. I think this is just one more aspect of the disaster of HDCP.
My only solution was to choose only one HDMI output when using the TV.
To add even more confusion, with certain Denon firmware versions, this problem does not occur, and I can use an active cable with both HDMI outputs active, even with the projector off. Go figure.
My Denon is on it's 4th firmware. The problem did not occur with the first, and has not occurred (so far) with the 4th version.