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rod
Joined: 18 Mar 2006
Posts: 418
Location: Northern Ontario, Canada
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| Posted: Thu Nov 29, 2007 2:53 am Post subject: video processing issue |
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I have the following setup. PS3 (HDMI) > (HDMI) Yamaha receiver (HDMI) > (DVI) DVDO (DVI) > (DVI) HD Fury > (port 3) Barco.
DVDO outputs at 1080P. Picture is brilliant when running stuff thru the PS3 but outputting a 1080i signal. (ie. it gets upscaled at the DVDO at 1080P).
When I set the PS3 to output 1080P the DVDO passes thru the signal but the projected image becomes distorted (buildings have kinks in them along the vertical axis) and it looks like i have all these white bugs crawling all over the screen (almost like snow effect but less flakes and the dots are moving around quickly and randomly).
Any ideas why this would occur?
I'm thinking the DVDO passthru is not simply passing thru. Possible?
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Rod
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Joust
Joined: 05 May 2006
Posts: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Thu Nov 29, 2007 3:50 am Post subject: |
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Bugs crawling on the buildings?
try a different movie. Spiderman will tend to do that...
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Thu Nov 29, 2007 5:27 am Post subject: |
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Cheap HDMI cable, bad conection, or DVI to HDMI adaptor. Could be something else too.
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Tech support for nothing
CRT.
HD done right!
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oliverg
Joined: 15 May 2007
Posts: 800
Location: Melbourne, Australia
TV/Projector: Sony G90 X2 - Vidikron Vision 1
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| Posted: Thu Nov 29, 2007 10:24 am Post subject: |
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What firmware revision in your Lumagen? Have you tried going straighthrough instead of passthrough?
Cheers
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rod
Joined: 18 Mar 2006
Posts: 418
Location: Northern Ontario, Canada
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| Posted: Tue Dec 04, 2007 3:06 am Post subject: |
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thanks for the ideas (and humor)
All the cables are top-end from Blue-Jeans, I've tried to make sure the connectoins are ok.
The upgrade on the DVDO might do something. I totally forgot about this. Might do the trick.
I wish I can win a 15Mil in a lottery so I can quit my job and tweak all day.
wait there goes a bug now! got to get it ........ 
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Rod
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GEBrown
Joined: 08 Mar 2006
Posts: 729
Location: Denver
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| Posted: Tue Dec 04, 2007 6:03 pm Post subject: |
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I'd be suspicious of the Yamaha. Try taking it out of the video chain and see what you get.
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mike calcott
Joined: 18 May 2006
Posts: 307
Location: Australia
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| Posted: Thu Jan 17, 2008 3:03 am Post subject: |
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Can you projector handle a 1080p image at this scan rate, it sounds like its struggling to keep up
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Thu Jan 17, 2008 3:06 pm Post subject: |
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| GEBrown wrote: | | I'd be suspicious of the Yamaha. Try taking it out of the video chain and see what you get. |
If I had to bet, I'm going with GE on this one. But your case is super simple to diagnose.
I'm making the assumption that you are doing 1080p/60 in both cases. If this is true, then it can't be the PJ, it is getting a signal of the same bandwidth. It can't be the cable from the scaler to the Fury because in both cases, it is carrying the same signal.
So, there are really only two options (other than the unlikely condition if is one of the other cables, but if the below tests don't reveal the problem, you can try the other cables):
1) The Yamaha can handle the 1080i signal, but not the 1080p signal
2) The Scaler is having a problem passing the 1080p signal
Since the issue is when the PS3 outputs 1080p directly, you can test this easily.
First, go straight from PS3 at 1080p to the Fury. The picture should be fine (same as scaled 1080i).
Then do this:
1) Put the 1080p signal through the Yammy:
PS3 (1080p) -> Yammy -> Fury
2) Put the 1080p signal through the DVDO:
PS3 (1080p) -> DVDO -> Fury
Most likely number 1 or 2 will will make the problem appear, then you've found your culprit. Tell us which component caused the problem (as I'm curious).
Your option is solve the problem is going to be an HDMI switch. If the prob is the Yammy, don't let it do the switching. If the problem is the DVDO with 1080p sources, then you'll have to change things around a bit and put a switch after the DVDO so 1080p sources and go from Yammy to switch and other sources can go to DVDO then to switch.
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Dave
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