Originally Posted by xyzz123
Watched about 4hours plugged into aux 1 (flawless), watched about 4 hours into "media player" input. I also have my AVR out of the cabinet to eliminate potential overheating issues.
what are my options here? is there any other troubleshooting I can do? Worst case scenerio would be to get an HDMI switch that I can plug into the front... but that is far from ideal.
It's funny that you mention the 'media player' input, as I have a similar issue with my x3300w. I started having issues with my receiver about a year or so into purchasing it (back in 2017). I replaced the unit with something else and then kind of forgot about it. But doing some recent cleanup, I decided to see what could be the issue with this Denon, and after some extensive testing, using an Atomos Shogun Inferno outputting UHDp60 4:2:2 10bit, I think I found the culprit.
If I only use the rear HDMI ports 1-4 or 6-7, things seem to operate relatively well. I do have some occasional HDMI handshake issues, but these can usually be ironed out (for instance, by enabling or disabling Zone 2 output or just warm power cycling the receiver for a few seconds; although, I don't think these hoops that I have to jump through are really 'acceptable', as the workaround to get these ports re-engaged is quite frustrating when you just want something to work). However, once I switch to HDMI 5 input (Media Player), that's when things go to hell pretty much.
the input device is relayed out to the TV from HDMI 5 (and that's a big 'if'), there is usually corrupted video on the screen. There might be a horizontal line or two flashing on the screen, or the entire video will flicker in and out. If I switch to the Zone 2 output from the receiver to the TV, then this is usually fine, given video is actually displayed on the TV. The real kicker of this is not just that this seems to happen most often on HDMI 5, but that once it does, all other HDMI ports become practically useless. The only way for me to regain video out from those other input ports, from either the Main HDMI or Zone 2 HDMI, is to cold power cycle the receiver (manually unplug the power) + (usually) the input device. For instance, I haven't unplugged the power yet, so right now I am unable to get any video out from any HDMI input from the receiver. This is the case even though the Denon's front panel "sees" an input signal, and the Shogun displays that it is actively connected to a 4Kp60 display device.
So basically, if I don't use HDMI 5, I am usually ok. This means instead of an 8-port HDMI receiver, I have a 7-port unit. Time to get on the phone with Denon I guess...