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Brightness problem with Radiance XD
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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 6:44 pm    Post subject: Brightness problem with Radiance XD Reply with quote


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Hello,

I have a BG808 with a XD and OPPO103. When I plug the OPPO directly to my BG808, I have to adjust the brightness to 45 to get it right.
If I plug the XD, I have to adjust the Barco brigthness to 32. I reset the XD with the factory values and put the latest firmware.
I don't understand why the picture has a brightness so high. I also checked the XD ouput and it is set to Video (not PC).
Thanks for your help
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CIR Engineering




Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany


PostLink    Posted: Thu Apr 11, 2013 7:04 pm    Post subject: Reply with quote

What i your Oppo set to on the output. Make sure its YCbCr 422.

craigr

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 7:14 pm    Post subject: Reply with quote

I have that on the OPPO, but what you should be on the Lumagen ?
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 7:17 pm    Post subject: Reply with quote

Corleone88 wrote:
I have that on the OPPO, but what you should be on the Lumagen ?


The Same. But you have to know what color spaces the DVI greg eismann uses. Does it auto select? Can you choose your Color space?

Nashou

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 7:25 pm    Post subject: Reply with quote

There is no selection. I suppose it is auto select.
On the Lumagen, it is set to auto, but it displays "RGB" in brackets.
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 7:27 pm    Post subject: Reply with quote

Corleone88 wrote:
There is no selection. I suppose it is auto select.
On the Lumagen, it is set to auto, but it displays "RGB" in brackets.


Is the [ RGB] for the output?

Nashou

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 7:28 pm    Post subject: Reply with quote

Yes
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 7:30 pm    Post subject: Reply with quote

Then the DVI card for your Barco does only RGB unless you slected RGB out in the Lumagen. Try setting the Lumagens Out to
442 and see what happens to the image.

Nashou

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 7:33 pm    Post subject: Reply with quote

In fact input = auto (RGB) and output = RGB (vid).
I don't know if it is because of the latest firmware, but it looks like my BG808 have problem of sync with the XD. I only can see the picture with flashes Sad
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 7:36 pm    Post subject: Reply with quote

Well make sure the lumagen is outputting 1080p@60 0r 48 etc, 24p will not work( i'm sure you know this).

Also set everything to 442 out and in so we can see how the DVI card you use handles it.

Athanasios

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 8:08 pm    Post subject: Reply with quote

When I use only the BG808 with the OPPO, the video ouput is set to 442 and the picture is fine.
If I use the XD (or the HDQ), I need to put RGB or else I have a green picture. I doesn't make sense.
By the way, I also checked with my HDQ without the XD and I have the same brigthness issue. I have to lwer it to 32
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 8:13 pm    Post subject: Reply with quote

Corleone88 wrote:
When I use only the BG808 with the OPPO, the video ouput is set to 442 and the picture is fine.
If I use the XD (or the HDQ), I need to put RGB or else I have a green picture. I doesn't make sense.
By the way, I also checked with my HDQ without the XD and I have the same brigthness issue. I have to lwer it to 32


Ok you have to make sure you are in the right menu for the Lumagens. There is an input and an output menu. both should be set to 442 . Do not select the Auto for input and for the output.

If the image is Green it wounds like a menu setting is wrong. Nothing with the Lumagens.

See what happens.

Nashou

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 8:17 pm    Post subject: Reply with quote

On the HDQ I only have input to set. I didn't find an output type.
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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 8:27 pm    Post subject: Reply with quote

On the HDQ, anything other than Input->type->DVI-D/HDMI444 RGB gives a green picture. Whatever is set on the OPPO.
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Thu Apr 11, 2013 8:34 pm    Post subject: Reply with quote

Corleone88 wrote:
On the HDQ I only have input to set. I didn't find an output type.


Hmm, you might be right. it has been a while since i used the HDQ. Looking at the manual i can not find it.

Do you have the manual?


http://www.lumagen.com/docs/VisionHDQ_User_Man_3-9-07.pdf

nashou

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Thu Apr 11, 2013 8:46 pm    Post subject: Reply with quote

Yes I have it.
I did some tests without any Lumagen to check how Greg's card behaves.
- RGB video (OPPO) gives a very bright picture at brightness (BG808) = 45
- Yc422 or Yc444 (which one is better by the way ?) gives a great picture at brightness (BG808) = 45

So my understanding is that the Lumagen outputs RGB and gives a very bright picture.
But why do I have a green picture if I choose Yc422 or 444 on the Lumagen when it is ok without it ?
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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Fri Apr 12, 2013 8:20 am    Post subject: Reply with quote

I did more tests last night.

The brightness problem seems to come from my DVI card when I used RGB signals (it is fine with Yc422 or 444). I checked with my Pioneer TV to see if the problem came from the OPPO player. It does not.
Conclusion: if I use RGB signal, I have a 30% brighter picture and a disappointing result even after lowering the Barco luminosity level.

If I use Yc422 signal, the XD and HDQ gives a green/pink picture even when I set input/output (XD) or input only (HDQ) to Yc422.
I still does not understand what is wrong on my Lumagen vps. I also plugged to a LCD screen instead of the BG808 and I still have this green/pink picture.

I am waiting for feedback from Lumagen and Greg. No reply for the moment.
Neither solution is good Sad
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Fri Apr 12, 2013 1:32 pm    Post subject: Reply with quote

Set everything at RGB from the oppo right to the DVI card. This is actually how I have mine set. I use video levels as well. But i do it for the lack of good conversion of my TV one processor. But now Since you have mentioned an issue it might be my radiance's.

But for now all RGB 444 out works for me.

Athanasios

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Corleone88




Joined: 09 Dec 2006
Posts: 443
Location: France


PostLink    Posted: Fri Apr 12, 2013 1:47 pm    Post subject: Reply with quote

I know that my Pioneer Kuro can manage correctly the Yc422. I will do the test this evening.
I would be amazed if nobody had the OPPO (Yc422) + Radiance XD (Yc422) working.
On the OPPO, there is the HDMI CEC option and maybe this must be activated in order to get the correct info to the Lumagen.
There are also the Color format (input/output) on the Radiance that I didn't check. I only set Video Type (input/output) to Yc422.
It looks like another long night of testing is coming for me Wink
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Nashou66




Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY


PostLink    Posted: Fri Apr 12, 2013 1:56 pm    Post subject: Reply with quote

Corleone88 wrote:
I know that my Pioneer Kuro can manage correctly the Yc422. I will do the test this evening.
I would be amazed if nobody had the OPPO (Yc422) + Radiance XD (Yc422) working.
On the OPPO, there is the HDMI CEC option and maybe this must be activated in order to get the correct info to the Lumagen.
There are also the Color format (input/output) on the Radiance that I didn't check. I only set Video Type (input/output) to Yc422.
It looks like another long night of testing is coming for me Wink


Yes that is the one i was talking about.

It does work fine. I had it set this way. But for some reason the conversion in the TV one was not right. It does not output 422 only 444 so i was getting weird calibration results. So I decided to go all 444 but I still didn't like the colors. So that is where I ended up with RGB the entire path. I may revisit 422 up to the radiance input then have the radiance convert to 444 out and see how it looks. I am not sure why the TV-One does not like 422 in , maybe because it is a commercial product and not meant to be used for home theater.

Athanasios

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Don't blame your underwear for your crooked ass~ unknown Greek philosopher


"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan

One Smart Dog!!!

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