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The 2nd Official Infocus 4805 Thread. - Page 42

post #1231 of 8120
aw hold up, what is this about no 480i through the M1 input

so this means that there would be no way to 1:1 pixel map from a DVD player thru 480i and keep it 100% digital?
post #1232 of 8120
Quote:
Originally Posted by PatrickGSR94 View Post

this means that there would be no way to 1:1 pixel map from a DVD player thru 480i and keep it 100% digital?

You're talking about several things at once here:

There are only three DVD players that can "1:1 pixel-map" at the moment - the Bravo D1/D2, the Momitsu V880 and the SnaZio. They do that by providing an explicit pixel-map over DVI/HDMI, ie. 852x480 pixels. You can also do it with an HTPC with a DVI connector and the right software.

480i is not pixel-mapping, by any definition. Neither is 480p, 720p or 1080i. Neither are VGA, or component, or S-video or composite connections.

The SP4805 does not accept 480i/576i via the M1-DA port. The builtin Faroudja processor is not active on the M1 port, only the discrete analog ports. The M1-DA digital port will accept 480p, 576p, 720P and 1080i as well as various VGA resolutions but none of those are "1:1 pixel-maps".

You cannot successfully feed 480i/576i to the SP4805 in a digital format. Infocus specifies that the M1 port is "progressive only".
post #1233 of 8120
That's odd, when I had my LG LDA-511 connected via HDMI to my 4805, I set the player to 480i, and when I went into the projector's menu, it confirmed that it was receiving a 480i signal.

But aside from that, would it be better to send a 1:1 pixel-mapped signal to the 4805, or a 480i signal?
post #1234 of 8120
I can also send 480i, 1080i, 720p or 480p from my ATSC HD tuner to the M1 port, but they all look the same.
post #1235 of 8120
How in the world are you guys sending a 480i signal through the M1 port. I had tried using the Xbox via component to M1 - but the start-up menu was scrambled because it was 480i - it would only clear up once the game started. So I got a switcher.

I cannot send a 480i signal from my SA3250 to my 4805 via the M1.

Are you guys SURE it is 480i, in that the source does not automatically switch somehow to progressive?
post #1236 of 8120
I just ordered my Comcast HD digital cable and I have a 4805. One problem I have is. I use my Pioneer 1014 receiver to switch my component sources. I only have 2 inputs on the receiver which are being used by my DVD player and Xbox360. If i use the M1 port on the 4805 for HD television, what do I do about standard def channels if the 4805 does not accept 480i through the M1? Will I just need to add a switcher to my system and run it with component?
post #1237 of 8120
Quote:
Originally Posted by Jay DeMatarese View Post

I am in the same boat, Dust. Except I can't restore my DVI connection at all. I have tired unplugging the Motorola STB, then the 4805, then powering them up in any order and I still have the same problem. I was curious if you bought the DVI to M1 adaptor that InFocus sells as an accessory, or if you are using an aftermarket cable with a built-in adaptor like me.
When I enter the Moto Menu before powering it up, it doesn't even recognize the DVI input any longer

Suggestions anyone, please?

I got home tonight after considering the problem and worked around a possible solution. If you turn off the 6412 prior to switching over to your component video connection you can get your DVI connection back by flipping back over to your DVI on your 4805 and then powering up the 6412.

Example I did tonight. Left 6412 off (actually by accident). Watched Die Harder on DVD. Then realized 6412 wasn't turn on. Thought to myself this might be a work around. So I flipped my 4805 to DVI and powered up the 6412. Now I'm watching the Heat Vs. Piston in TNT in HD. Sweet, again this is only a work around. At least it is something to work with though. I think a better work around might be able to be devised, but not by me tonight. I'll gotta get up at 4am tomorrow. I'm going to enjoy the game a little longer. I hope this helps everyone at least a little.
post #1238 of 8120
Quote:
Originally Posted by Juiced46 View Post

If i use the M1 port on the 4805 for HD television, what do I do about standard def channels if the 4805 does not accept 480i through the M1?

Set the Comcast DCT6412 DVI output to 1080i and the 4:3 Override to "OFF" (or 480p but it doesn't look as good, IMHO).
post #1239 of 8120
Quote:
Originally Posted by Juiced46 View Post

I just ordered my Comcast HD digital cable and I have a 4805. One problem I have is. I use my Pioneer 1014 receiver to switch my component sources. I only have 2 inputs on the receiver which are being used by my DVD player and Xbox360. If i use the M1 port on the 4805 for HD television, what do I do about standard def channels if the 4805 does not accept 480i through the M1? Will I just need to add a switcher to my system and run it with component?

As cavu said, set the box to output 1080i and the override to off. I prefer it set up this way. If you set the override to something else, the projector will have to resync when you change to non HD channels. With override set to off, the box always outputs 1080i (or 720p if you choose to use that instead but most people seem to use 1080i to the 4805 from their cable boxes).
post #1240 of 8120
Quote:
Originally Posted by Ja Phule View Post

Do you have the 4805 connected to a UPS by any chance? If so, then take it off the UPS. Otherwise, I'd try plugging it into a different outlet and see if the noise continues.


Nope, no ups. Tried a couple different outlets, still hear the buzz near the power switch area. I wonder, if it's leaking a little power through (sounds like it might be), and if it's bad for the machine ? I'm just starting to get a good picture too with a new screen.

Any ideas about the lens? Plastic? Good cleaner?
post #1241 of 8120
Quote:
Originally Posted by TakeFlight View Post

most people seem to use 1080i to the 4805 from their cable boxes.

The reason is: most HDTV is native 1080i.

It is better that the SP4805 downconvert once to 480p from 1080i than having the STB downconvert 1080i to 720p and then downconverting the 720p again in the SP4805 to 480p.
post #1242 of 8120
If anyone wants a followup, I tried many different resolutions/refresh rates on my HTPC yesterday. Using the Avia resolution patterns I found 1440x960i @ 72Hz to be the best setting with PowerStrip and ATI 9600 VGA.

Rainbows were minimal at that refresh rate and motion was smooth. I'm going to do some more testing at 60Hz to see if I can get smooth motion because, if you tried hard to see it, there was still a bit of rainbow visible at 72Hz.
post #1243 of 8120
Quote:
Originally Posted by gprro1 View Post

Nope, no ups. Tried a couple different outlets, still hear the buzz near the power switch area. I wonder, if it's leaking a little power through (sounds like it might be), and if it's bad for the machine ? I'm just starting to get a good picture too with a new screen.

Any ideas about the lens? Plastic? Good cleaner?

What about connecting it to a good surge protector that is feeding it clean power? I'd get a wierd buzz when my UPS is using it's battery with the 4805 off, I'm guessing that the power isn't clean. If that's not the case, I'd recommend contacting infocus with your issue.
post #1244 of 8120
Quote:
Originally Posted by dustman52 View Post

I got home tonight after considering the problem and worked around a possible solution. If you turn off the 6412 prior to switching over to your component video connection you can get your DVI connection back by flipping back over to your DVI on your 4805 and then powering up the 6412.

Example I did tonight. Left 6412 off (actually by accident). Watched Die Harder on DVD. Then realized 6412 wasn't turn on. Thought to myself this might be a work around. So I flipped my 4805 to DVI and powered up the 6412. Now I'm watching the Heat Vs. Piston in TNT in HD. Sweet, again this is only a work around. At least it is something to work with though. I think a better work around might be able to be devised, but not by me tonight. I'll gotta get up at 4am tomorrow. I'm going to enjoy the game a little longer. I hope this helps everyone at least a little.

This exact issue (at least very similar) with my SA8300 HD DVR from Time Warner over DVI is what led me initially to find a dvi dvd player (OPPO) and now I run my 8300 over component and everything works fine.

I had huge HDCP issues between my cable box and the 4805. If I forgot to turn off my cable box when I switched the 4805 over to the component input, it would lock the HDCP up and lock out the pj. Only a reboot of the box would fix it.

Time Warner and SA had no input or help- my Time Warner tech had only seen one other pj install in the whole area, so just didn't get what I was trying to tell him. Since component on the hd box looks great, I switched inputs to use the DVI on the OPPO, and have never looked back. . .

Wes
post #1245 of 8120
Quote:
Originally Posted by Juiced46 View Post

I just ordered my Comcast HD digital cable and I have a 4805. One problem I have is. I use my Pioneer 1014 receiver to switch my component sources. I only have 2 inputs on the receiver which are being used by my DVD player and Xbox360. If i use the M1 port on the 4805 for HD television, what do I do about standard def channels if the 4805 does not accept 480i through the M1? Will I just need to add a switcher to my system and run it with component?

Get the xbox360 vga adapter, people are saying it looks better than component and use the m1 to vga adapter to the 4805. You'll only be playing games at 480p, 720p, 1080i anyway, so you can use the component input for your hd cable that uses 480i, 720p/1080i.
post #1246 of 8120
There seems to be a lot of issues with dvi/hdmi and hdcp for many people outside the 4805 also. There seems to be a problem with both the digital source and digital input about the handshaking going on. I'm guessing these problems won't be fixed until hdmi 1.3 is out where they will probably use a new hdmi connector (but this is just my guess).
post #1247 of 8120
Quote:
Originally Posted by cavu View Post

The reason is: most HDTV is native 1080i.

It is better that the SP4805 downconvert once to 480p from 1080i than having the STB downconvert 1080i to 720p and then downconverting the 720p again in the SP4805 to 480p.


Here in Orlando (http://www.orlandodigital.tv/index.htm), two of the 4 big locals use 1080i and the other two use 720p whereas most others use 480i. I really don't know what the best option would be since my ATSC tuner has a hard switch at the back.
post #1248 of 8120
Quote:
Originally Posted by therealgeno View Post

So I didn't convert you, heh? How about Zoomplayer with the dscaler codecs, or maybe ZP with the NVidia codecs?

Yes Geno, I came away from it totally believing in Theater-Tek - but not $100 worth of belief. At least not until I have a totally spare $100 floating around that I would not prefer to spend on a couple of 8 pound lobsters and 6 ears of corn.

IMHO any HTPC software player that can be properly BtB,WtW, and color calibrated is "close enough" for 99.5% of the people to not be able to tell the difference. I say this in light of the fact that IMHO the theory of diminishing returns kicks in - and the transfer quality becomes more of an issue than the finer nuances of the player software.

I also feel the same way about DVE or AVIA. 99.5% of the people using overlay can also use the THX Optimizer and get the thing 99.5% of dead nuts on. Again I've seen "light or dark transfer issues" superceed any trouble caused by one click on a setting.

That said......... were it not for those here striving for "perfect" the rest of us would have no clues to start with.

-W
post #1249 of 8120
Quote:
Originally Posted by Ja Phule View Post

Get the xbox360 vga adapter, people are saying it looks better than component and use the m1 to vga adapter to the 4805. You'll only be playing games at 480p, 720p, 1080i anyway, so you can use the component input for your hd cable that uses 480i, 720p/1080i.


Thats a great idea. Now I will have to buy the Xbox 360 VGA cable, but then I need a 25ft long Male VGA to M1 cable. Any thoughts where I can find this? Checked Ebay and nothing of that length. Cheapest I found so far for 25' was like $63 @ cablestogo


Thanks
Dave
post #1250 of 8120
Quote:
Originally Posted by Juiced46 View Post

Thats a great idea. Now I will have to buy the Xbox 360 VGA cable, but then I need a 25ft long Male VGA to M1 cable. Any thoughts where I can find this? Checked Ebay and nothing of that length. Cheapest I found so far for 25' was like $63 @ cablestogo


Thanks
Dave

I bought a 25ft vga cable that I had connected from my pc to the 4805's bundled m1 to vga adapter and had no issues with that. I don't remember where I bought it but just make sure it is good quality with shielding. Only cost $20. Maybe try monoprice.com
post #1251 of 8120
Quote:
Originally Posted by Dark-007 View Post

So, I should stick with 720p, even if a game supports true 1080i? I'm basically wondering if the extra detail simply won't be apparent due to the conversion.

I'd rather have a smooth picture than have to worry about scaling and interlacing.

If a source can support both 720p and 1080i, which will look better when scaled on the 4805?

I could be wrong - but it is my understanding that 1080i on XBOX is supported by scaling and interlacing. Interlace is a foreign technology to computers - you will lose resolution. Maybe you should ask in the HT gaming forum next door - DaGamePimp will for sure know - he was the first one in line for the XBOX360 around these parts!
post #1252 of 8120
Quote:
Originally Posted by Ja Phule View Post

I bought a 25ft vga cable that I had connected from my pc to the 4805's bundled m1 to vga adapter and had no issues with that. I don't remember where I bought it but just make sure it is good quality with shielding. Only cost $20. Maybe try monoprice.com


Wow monoprice has great prices. 25ft VGA cable is only $5. The M1-VGA is only $13 but not in stock till 1/27

Ill grab the M1 to VGA. If i buy a long VGA and use the m1-VGA wire that comes with the 4805 then I will be linking 3 cables together for my xbox which Im not sure if it would affect quality or no?
post #1253 of 8120
Quote:
Originally Posted by Ja Phule View Post

I thought that may have been the case. The older Infocus 4800 (aka Infocus X1) did not have component inputs and needed the svideo to component or vga to component adapter. I'm hoping you got the 4805 and not the 4800.

Now there is a market opportunity - a stack of long dead SP4800's - and a paint stencil to change the 0 to a 5 to mark them up!
post #1254 of 8120
Quote:
Originally Posted by krasmuzik View Post

Now there is a market opportunity - a stack of long dead SP4800's - and a paint stencil to change the 0 to a 5 to mark them up!


Beautiful !!

-W
post #1255 of 8120
For those that have their 4805 hooked up to a computer and like gaming, I recommend Need For Speed: Most Wanted. Kick ass on my 78" screen. I assume there is a version of this game for game systems as well.
post #1256 of 8120
Quote:
Originally Posted by TakeFlight View Post

For those that have their 4805 hooked up to a computer and like gaming, I recommend Need For Speed: Most Wanted. Kick ass on my 78" screen. I assume there is a version of this game for game systems as well.

yes, its avail for all consoles. I have it for xbox 360, pretty good game
post #1257 of 8120
Any ideas about the lens? Plastic? Good cleaner?

gprro1,

The lens is glass, go to your local walmart that has an Optical store in it and by some Zeiss lens cleaning patches for glasses. they do a nice job and they are cheap! they do not leave any residue.

Hope that helps,

Homer
post #1258 of 8120
So what signal is best to feed a 4805, a 1:1 pixel mapped image or 480i image?
post #1259 of 8120
Pixel mapped............... but 480i isn't at all shabby.

-W
post #1260 of 8120
OK guys, I'm confused. I have a new 4805 that replaced my X1. For the X1, I had a composite cable, an S-Video cable, and a VGA cable run in the ceiling. I bought a component and a hdmi cable to use for my HDTivo and DVB318 DVD player. I thought I would just use my VGA cable as a pull and pull the new cables through. Tried it, and no go, wouldn't budge. I knew I might have a problem, they were a pain to run originally.

So, I am thinking of buying component to VGA adapters for both ends of my VGA cable. Will this work? The main problem with this is that I can't find any male component to female VGA adapter/cables. For the projector end, can I use the M1 connection with the supplied VGA to M1 adapter, or is that just for computer source inputs? Thanks for your help.
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