Originally Posted by Mark1000
Thanks Bill, I will definitively experiment further with cabling. I use a mixture of 'high speed' (like the one supplied with the 105) and certified for the UHD chain. Mostly shorter runs, max 5 meter to the display. Unfortunately, I do not own two longer certified cables at this moment to connect them separately. But: is a cable to blame? If I turn on the 105 there is no problem whatsoever with dropouts. And probably so if I take it out completely (have to try that one too, but it takes time and attention to wait for dropouts). So that looks like no shortage of bandwidth but failed/misinterpreted handshakes to me. A better cable is not able to do something about that, is it? Or do I miss something then?
The change the 105 makes is mysterious. It must be altering some state in the receiver, but I don't know what that would be. If there is a thread for that receiver you might ask if anyone else has found that the presence of one input alters the behavior of another input.
When diagnosing mysterious behavior we simplify the configuration until it works properly, then add back the complicating factors one by one. Got to be systematic about this or we are just fumbling.
When altering the variables we first go for the easy changes that have most often been a problem. A huge amount of problem solving has involved HDMI cables, even more so with UHD signals. So many times we hear "it can't be the cables" but it is the cables. In the early days we were junking mountains of old cables.
It may not be the case this time, but we have to try. Swap your cables around, reseat the connectors, get new UHD certified premium cables.
5 meters is getting to be a longish cable for UHD purposes.