Originally Posted by rafparedis
The issue of the green flashes still persists, but I had this also on 1.08, on 2 different HD86's. No other display device I own has it (tv, hd800x). Tried several hdmi cables and even a splitter/repeater. The only thing I haven't exchanged is the receiver because this isn't feasible (yamaha RX-V3900 with the ABT2010 video processor chipset, same as in the oppo BD83)
(If I recall correctly my previous HD800X also was 'global' as it reported itself to my pc as the HD803, the model number used in the US)
Hmmm... I've seen green flashes (duration 1...10s) on two different HD86 devices within the last 4 weeks. After testing out different things it seems
as if I got some hold of the problem. I have some common denominators with rafparedis so let's start with the gear and the background.
previous projector: HD800x
current projector : HD86 fw1.08 (another unit with fw 1.07 was here as well)
AV-amplifier : Yamaha RX-V663
BD-player : Sony BDP-S350
DVD-player : Sony RDR-HXD870
DVD-player : Sony RDR-HX710 (older, no HDMI output)
With HD800x earlier I had sometimes vertical stripes of opposite colours in the picture (like green stripe on people's faces/skin). The issue was strongest with HX710 as source, producing progressive component video output through Yamaha, but the same phenomenon was sometimes present also with both HDMI-sources, though it was not that strong (1080p). For HDMI-devices I found a cure: I switched Sony HDMI output format from the default YCbCr 4:4:4 to YCbCr 4:2:2 on both S350 & HXD870. All problems gone.
A month ago I switched to HD86. 1080p24 picture worked perfectly but I had problems with those green frames when using 1080p50. Green picture had a duration of 1...10s, usually 2...6 times per hour and I had same observations with both HDMI-sources. I tried removing Yamaha from the chain (player directly connected to projector, suffered 2ch audio) and there were still problems but now they appeared differently: there were flashes or blue rain/noise in the picture. Same thing with both players, with 7m cable, with 5m cable and with 2 different 1.5m cables.
The dealer kindly provided me another HD86 unit and that was demonstrating the same problem until I came across that HDMI signal format setting, tried switching that back to YCbCr 4:4:4 and since then all problems have been gone.
- 1080p24 was always ok.
- 1080p50 had trouble from 2 players with Yamaha (green picture with some red, looked like blue was missing) and without Yamaha (blue noise).
- Changing HDMI cable length had no impact on the problem.
- Changing HDMI signal format helped. So far >10h of p50 without problems.
Exception to the rule:
The first HD86 had trouble with HDMI1 and HDMI2 inputs only, HDMI3 seemed to work ok (at least >10h of p50).
Weird/weak/unexplainable points are the exception + the fact that 4:2:2 setting was ok 99,9% of the time.
That's about it. These are just observations, maybe people who are more knowledgeable about HDMI frame format details can make some analysis or interpretations about what was actually going on.
Anyway I hope this might help if anyone is suffering these green frames or similar issues.