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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Fri Feb 10, 2012 10:29 pm Post subject: |
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i see now what the problem is.
the front porch as indicated on the lumagen is actually the backporch.
still 482 is much too high and wasted bandwidth.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Sat Feb 11, 2012 1:40 am Post subject: |
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Nash-
Is this what it should look like for 2.35/2.40?
The settings are as follows;
VTOT 860
VACT 817
VSYNC 11
VFRN 5
HTOT 2538
VACT 1920
VSYNC 105
VFRN 210
Back porch should be 303
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sat Feb 11, 2012 2:28 am Post subject: |
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| Nashou66 wrote: | | Dennis lower the Total vertical geometry to 860 and Active to 817. |
all series are in 16:9.
besides that, i don`t mind black bars.
and please lower your front porch settings, 56 is more then enough.
i have zero ringing and could lower the front and backporch a bit and still have no ringing.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sat Feb 11, 2012 2:50 am Post subject: |
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| jbmeyer13 wrote: | Nash-
Is this what it should look like for 2.35/2.40?
The settings are as follows;
VTOT 860
VACT 817
VSYNC 11
VFRN 5
HTOT 2538
VACT 1920
VSYNC 105
VFRN 210
Back porch should be 303
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No, that is still 1.78. Look at my pic here then yours, notice yours still shows
above and below the 2.39:1 line, it shouldn't.
Not sure why the Lumie is still allowing the portion above and below the 2.39 to scan?
I forgot to see what my aspect was set to, what is your at? if its 1.78 change it to 2.35 if its 2.35 change it to 1.78.
that might be it.
Id have to be home to check the rest of the settings. There must be one your missing. I'm still at the diner, be another hour
or so.
Athanasios
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Sat Feb 11, 2012 7:34 pm Post subject: |
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Dialed in to the max...1920 x 817/72hz 
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Phoenixed
Joined: 13 Oct 2011
Posts: 514
Location: The mitten
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| Posted: Sat Feb 11, 2012 7:50 pm Post subject: |
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JB What were your settings for 1080p60 if you don't mind my asking?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Sat Feb 11, 2012 9:26 pm Post subject: |
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| Phoenixed wrote: | | JB What were your settings for 1080p60 if you don't mind my asking? |
For 1080p/60 I only used the factory defaults. I might have been able to get rid of the ringing but I decided to drop to 1080p/48 so I wouldn't have to muck with the porch settings so much. I'll be revisiting that shortly and if I find a setting that works I'll post it.
The picture above is 1920 x 817/72 hz.
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Phoenixed
Joined: 13 Oct 2011
Posts: 514
Location: The mitten
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| Posted: Sat Feb 11, 2012 11:35 pm Post subject: |
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I don't have the ringing you do err did, however I can't fully resolve 1080p60 lossing like 2.5% of the image. So I just need to messs with the porch settings. Thanks for your help.
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Mon Feb 13, 2012 6:54 pm Post subject: |
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I now have 1080p/48 (1.78/1.85), 800p/72 (2.35/2.40) for Blu-ray dialed in and 1080p/48 for HD cable (might try 1080i/96..). Any thoughts on timing for the following output resolutions for SD DVD;
1) 1440 x 960p/72hz for 1.78/1.85AR
2) 1440 x 720p/72hz for 2.35/2.40AR
I need a starting point for H/V TOT, H/V SYNC and H/V FRN; any thoughts?
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AVphile
Joined: 02 Dec 2008
Posts: 334
Location: Ottawa, Ontario
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| Posted: Thu Apr 05, 2012 5:58 am Post subject: |
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What's all this talk about ringing? Is it being introduced by the display or the Lumagen? Is it not a simple matter of transferring one's display timings from Powerstrip (for example) to the Lumagen? I did just that with my Anthem/Sigma VXP and it results in a fine image with nothing I would call "ringing".
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AVphile
Joined: 02 Dec 2008
Posts: 334
Location: Ottawa, Ontario
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| Posted: Thu Apr 05, 2012 6:04 am Post subject: |
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| jbmeyer13 wrote: | I now have 1080p/48 (1.78/1.85), 800p/72 (2.35/2.40) for Blu-ray dialed in and 1080p/48 for HD cable (might try 1080i/96..). Any thoughts on timing for the following output resolutions for SD DVD;
1) 1440 x 960p/72hz for 1.78/1.85AR
2) 1440 x 720p/72hz for 2.35/2.40AR
I need a starting point for H/V TOT, H/V SYNC and H/V FRN; any thoughts? |
1440x810 is 16:9
I run this because it is exactly 3/4 the res of standard 1920x1080 and I figure that would be an easy clean conversion for the proc.
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Thu Apr 05, 2012 2:11 pm Post subject: |
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The HDM ringing is an artifact in the PJ resulting from running higher resolutions like 1080p; the beam doesn’t have the time to settle. By adjusting the porch settings, it’s possible to increase the overall size of the raster while keeping the viewable image the same size. This effectively shifts the ringing out of the viewable image.
The ringing was not an issue with DVD’s scaled to a resolution like 1440 x 960p. I ended up letting the BD player output 1080i/1080p for DVD. When using a SD DVD player into the Lumagen the image looked way too soft; regardless of resolution.
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AVphile
Joined: 02 Dec 2008
Posts: 334
Location: Ottawa, Ontario
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| Posted: Tue Apr 24, 2012 4:07 pm Post subject: |
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Thanks for the explanation.
Why does everyone run 1440x960? Do you then have to reduce vertical height to get the correct AR? If so do you do that in the PJ or VP?
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Tue Apr 24, 2012 6:14 pm Post subject: |
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| AVphile wrote: | Thanks for the explanation.
Why does everyone run 1440x960? Do you then have to reduce vertical height to get the correct AR? If so do you do that in the PJ or VP? |
2x480p
You andjust geometry in the projector. If you do it with the VP you won't be running 1140x960 anymore 
craigr
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studio
Joined: 24 Mar 2006
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Phoenixed
Joined: 13 Oct 2011
Posts: 514
Location: The mitten
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| Posted: Sat Apr 28, 2012 4:46 pm Post subject: |
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What resolution gives your ringing? 1080p 960p 720p
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sat Apr 28, 2012 5:14 pm Post subject: |
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DVDO processors always ring when they scale because they are pieces of sh*t.
craigr
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Klein K10-A Colorimeter
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