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tomgilmartin
Joined: 15 Jul 2006
Posts: 41
Location: Buffalo NY area
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| Posted: Thu Apr 17, 2008 2:05 pm Post subject: 1080p on NEC XG135LC |
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Hi guys,
Last night I hooked up my PS3 to my XG 135LC. Looked good, did a quick setup/convergence for 1080P and had a great looking picture. Then I started playing the Blu-Ray movie Alvin and the Chipmunks for the kids. I started to see wavy ghosts at left on the screen and when the screen was changing quickly (action scenes) there were faint wide horizontal lines appearing. On a static shot it looked great. I reduced the output of the PS3 to 720p and then it looked great all the time. Here's the chain of connections:
PS3 HDMI -> HDMI-DVI cable -> HDFury -> VGA in on Faroudja NRS ->
RGBHV out from Faroudja NRS -> 30ft 5BNC cable -> PJ BNC in
I'm not sure whether the projector or the Faroudja is the limit here.
Projector is supposed to be capable of 2500x2000 so 1080p should be EASY.
Any thoughts?
Tom in Buffalo, NY
PS Curt this was Dennis's NEC from Toronto
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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jarseneau
Joined: 06 Nov 2007
Posts: 323
Location: WI
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| Posted: Thu Apr 17, 2008 2:50 pm Post subject: |
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| Nashou66 wrote: | Hey !! A local CRT'er!!!! Look at the screen shot war thread over on AVS, a memembr there is running his nec at 1080p72!!!!!!! and it looks really really good.
He is also on this Forum he posted a thread called the " devil made me do it" he has a link there for a pic he posted. but go to AVS and look at the CRT forum's Screen shot war thred its on the last few pages.
http://www.avsforum.com/avs-vb/showthread.php?t=900831&page=60
Athanasios |
I'm pretty sure the key difference is that the guy running 1080p72 is using HTPC VGA as the source which allows you to adjust timing and porches of the signal. I also have been trying to do 1080p from PS3 or HD-DVD via HDMI and have seen the same things as Tom. They seem to be from the picture folding back on itself and you can minimize by shifting and using blanking but it doesn't seem to totally eliminate it.
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Jerry
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MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
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| Posted: Thu Apr 17, 2008 3:10 pm Post subject: |
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I thinks your right Jerry back a long time ago, some people tried running 1080p on an XG with an Xbox 360 w/ VGA adapter and similar issues, this is why I use an HTPC w/Powerstrip I suppose an outboard scalar would work too if you can set porch settings. Perhaps the new Moome card will resolve this but I wouldn't bet on it, Moome card will not change the timings if that is what the issue is. When I ran straight 1080p 60 without a custom Powerstrip timing on my HTPC I had fold over issues too, this is what prompted the change to an ATI card and use of Powerstrip.
Running 1080p on an XG IMO takes a lot of tweaking, more than a lot of people are willing to do.
Mike
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Doing HD since the last century!
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