Originally Posted by paul54
Thanks for the response. Maybe I wasn't clear, but using the "Format" button causes the same problems as changing resolutions by changing channels.
Sorry for my confusion. I saw your remark about changing between 720p and 1080i was "working fine" and misinterpreted. Apparently that was your using either the720p or 1080i "fixed resolution output", while I thought you were saying if you manually changed the output resolution with FORMAT that it was "working fine".
Anyway, you've now clarified things fo rme.
In any case, Oppo said they HAD heard of or seen this problem and had been working on it for a while. I tried a different cable box (an older Motorola--DCH3416) just for grins, and the handshake on resolution changes was better, but it has no native mode, and frankly, the image didn't look nearly as good as the DCX doing all its own upscaling to a 1080p output. Forsaking the Oppo doing upscaling, and having the DCX do it, gives me (and the family, since this is family-room, and not man-cave equipment) ease of use and no audio sync issues, and the additional Oppo image processing, which I like. I guess I'll just hold on in that mode until a firmware fix or a new STB comes out. I don't exactly have a high-end TV, so I'm good for now.
Are you going directly from 105 to your HDTV, with no AVR in the middle? What is your brand/model HDTV? Given that you have the same image anomalies (from HDMI handshake due to resolution changes) no matter DCX or DCH, and no matter "native" or FORMAT, it seems like a compatibility issue between the105 and your HDTV might be the issue.
I've seen HDMI compatibility issues between my 103 and an external headphone processor fed with decoded-to-LPCM via HDMI. The headphone processor has an HDMI-passthrough to send on video to a connected HDTV, but no video was making it to the HDTV connected on the output side of the headphone processor. Eventually I tried a different BluRay player from Samsung, and now sure enough the video from the player/HDMI got successfully passed through to the HDTV on the output side of the headphone processor.
Bottom line: though better than it once was, HDMI handshakes (and resulting performance) involving three or more devices and HDMI-relay is certainly not as "stable" as a 1-cable direct HDMI connection between just two devices.
I understand your current decision to just let the DCX to the upconvert to 1080p and then let the 105 do "cleanup", if that produces an excellent picture result and also avoids all the nuisances you've described. Family approvals are very important.