Pioneer HDTV and Computer problem

[hdtv2005]

Hello, I just got a Pioneer 43" HDTV plasma (PDP-435PG In USA Known as PDP-4350HD), it has 1 HDMI input and 1 VGA Input.
I wanted to hook it up to my computer. In my computer i have 2 GEFORCE 6800 Ultra from EVGA in SLI mode.
Conecting it with the vga works fine, i get a resolution of 1280X768 at 60Hz, but i want to conected with the hdmi to get it in HDTV format.
I have a cable that DVI on one side and HDMI on the other , when i use this to make the conection i get picture but it is bigger than the plasma so dont see the whole desktop.
The plasma says iam watching the image at 720P and the computer says its at 1280X720 at 60 hz.
I was reading the manual of the plasma an the chapter on conecting HDMI
has an "INPUT SIGNAL CORRELATION TABLE" the tables is as follows:
1920*1080i@50hz
720*576p@50hz
1280*720p@50hz
720(1440)*576i@50hz
1920*1080i@59.94/60hz
720*480p@59.94/60hz
1280*720p@59.94/60hz
720(1440)*480i@59.94/60hz

Also theres is a note that says PC SIgnals are out of correspondence.
Iam sure theres is a way to watch it at 1080I, i just havent been able to figure out how.
Any help would be greatly apreciated.

[BJ_M]

dont bother with 1080i , it is higher res than your plasma and will not look any better ..

[edDV]

Hello, I just got a Pioneer 43" HDTV plasma (PDP-435PG In USA Known as PDP-4350HD), it has 1 HDMI input and 1 VGA Input.
I wanted to hook it up to my computer. In my computer i have 2 GEFORCE 6800 Ultra from EVGA in SLI mode.
Conecting it with the vga works fine, i get a resolution of 1280X768 at 60Hz, but i want to conected with the hdmi to get it in HDTV format.
I have a cable that DVI on one side and HDMI on the other , when i use this to make the conection i get picture but it is bigger than the plasma so dont see the whole desktop.
The plasma says iam watching the image at 720P and the computer says its at 1280X720 at 60 hz.
I was reading the manual of the plasma an the chapter on conecting HDMI
has an "INPUT SIGNAL CORRELATION TABLE" the tables is as follows:
1920*1080i@50hz
720*576p@50hz
1280*720p@50hz
720(1440)*576i@50hz
1920*1080i@59.94/60hz
720*480p@59.94/60hz
1280*720p@59.94/60hz
720(1440)*480i@59.94/60hz

Also theres is a note that says PC SIgnals are out of correspondence.
Iam sure theres is a way to watch it at 1080I, i just havent been able to figure out how.
Any help would be greatly apreciated.

I have no solution, just observations.

First, you are lucky you have VGA 1280x768 working. This is your opening for using Powerstrip software to create custom analog scan rates that should get you where you are trying to go.

Second, DVI-I (digital mode) to HDMI often runs into HDCP issues. Again you are lucky that anything works. I think the proof of compatibility burden falls to NVidia. The "PC Signals are out of correspondence" note is revealing. I think Pioneer has more "street creds" than Nvidia on this issue.

[edDV]

dont bother with 1080i , it is higher res than your plasma and will not look any better ..

So true, just looked it up.

This plasma has only 1024 x 768 native resolution so it can't even display 720p without down scaling.

I think the 720p overscan results from the Pioneer displaying 720p directly. 720p is 1280x720 and the native resolution is 1024 x 768.

VGA and powerstrip look like the best route because 720p is the lowest HDTV resolution..

[hdtv2005]

ok, got the part about forgetting to use hdmi.
Ill try buying a dvd player with hdmi at least for movies.
Back to the Vga part, what i think i understand from what u are saying is that using vga and powerstrip i migth get it to work with higer resolution?
Is this rigth?
If it is could you tell me a little about how to do it, aim not really too familiar with powerstrip.
Thanks Again

[edDV]

ok, got the part about forgetting to use hdmi.
Ill try buying a dvd player with hdmi at least for movies.
Back to the Vga part, what i think i understand from what u are saying is that using vga and powerstrip i migth get it to work with higer resolution?
Is this rigth?
If it is could you tell me a little about how to do it, aim not really too familiar with powerstrip.
Thanks Again

A HDMI DVD player won't necessarily produce a better picture with a 1024x768 native resolution plasma. (see this discussion)
https://www.videohelp.com/forum/viewtopic.php?t=271633&highlight=

A good component analog progressive player should be good enough.

Powerstrip is high geek but may allow you to get better video playback from the computer at your native 1024x768 resolution. You don't need to bother if you are happy with the way 1280x768 downscales. It would be better to try 1024 x768 and match 1:1 your plasma native resolution from your graphics card.

http://www.entechtaiwan.net/util/ps.shtm
http://www.ramelectronics.net/html/powerstrip.html
http://www.audioholics.com/showcase/DIY/powerstriphtpcp2.html
http://www.digitalconnection.com/Support/cliffnotes_17.asp

PS: To be clear, if 1024x768 works ok over VGA from your graphics card, Powerstrip is not necessary. Use 60 or 59.94 Hz refresh rates. Also watch out for image burn when using the computer. Don't leave an image stationary for long.