DVI to HDMI Does not WORK!?! PC to TV

Make sure that you are trying to ouput a resolution over HDMI that your TV user's manual says it wll accept. Most likely it will only accept 480i, 480p, 720p, 1080k, 1080p or some subset of this list and it will ignore all other resolutions.
VGA uses RGB component and not YPrPb component which is what most HDTVs use. If your 9600 card will accept a DVI to Component dongle then that might be your solution.
Your best bet is to set your desktop and your DVI output to 720p (1280x720@60Hz) and try that first.

For mine to work I had to have my projector on and HDMI selected and the proper setting on the receiver. Then turn on my HTPC and wait for windows to load. Then an image will display.

If I turn on the HTPC and not the TV there will be no image once the TV is turned on and i'll have to reboot the HTPC to get it back.

Many televisions accept different resolutions over different interfaces, and HDMI is notoriously picky (limited to 480p, 1080i, 720p, 1080p), even if the native rez is much lower.

AFAIK all 1024x768 Plasma HDTVs will accept 16x9 resolutions since they are designed to be used with OTA digital stations as well as with cable and satellite STBs none of which output 1024x768 over DVI/HDMI. I again suggest that you try 720p (1280x720@60Hz) Your TV will delete 1 out of evey 5 pixels in each row so that HD programs will display with the proper aspect on your TV.
When you were using S-Video your graphics card was just passing a 480i image of your 1024x768 desktop in order to meet the NTSC S-Video standards it was not really passing 1024x768.

Hi guys, I'm also having a problem getting an image on my new Panny px77u from my computer.
I tried the following: Got a dvi/hdmi cable, connected to the monitor, booted up. Saw the bios boot up screen, saw the windows "welcome" screen and then nothing, black. No logon screen. The idiot that I am , I forgot to change the cards resolution from 1680x1050. No problem. Went back and changed the res to 1024 x 768 @ 60Hz. Again, same thing. Bios screen, windows screen and then nohting. After that, when I tried using my lcd computer screen with the computer , I also got the same sequence and then the card just died.
So my question is, can the card be damaged on the first try because I had it set to a higher res than the plasma is able to accept? Should I be using some kind of software (powerstrip?) before I try this again? I tried reading on the site and searching but there is so much to go through, I don't have the time.
My panny can display 720p @ 60 Hz. Native res is 1024 x 768 The manual says that "pc use is not assumed" but I know others have done it.

Any help and suggestions are appreciated, I dont' want to fry another video card.

Thanks.

Edit, my new video card is the ATI x1650 pro 512 mb which from reading the site is capable of 720p.

If you check your user's manual I think you will find that your TV like almost all HDTVs will only accept standard TV resolutions such as 480i, 480p, 720p, 1080i, 1080p or some subset of this list with its HDMI/DVI interface. Therfore it will not accept 1024x878 as you have found out.
Your Panny does not know the source of any signal so as long as you send it one that its video chips are designed to accept and the current generation of graphics cards are capable of this.
If your TV has a VGA interface than it will probably accept 1024x768 over that interface since that is a standard PC resolution used over VGA.

Ok so you're saying I should use 1280 x 720 as my video cards resolution?

Yup, I think that's what you should do.

I think that's very unlikely.

You're more likely to damage a monitor than the video card, and even that is almost impossible these days.

Mine works the same way. Does anyone have a clue as to something that can be done to "wake up" the TV so that it knows a computer is running on the other end of the cable without a complete reboot?

Mine used to do this with a Radeon 9600XT into my HDTV. I had to unplug the HDMI cable and replug it in every time to get the image back.

I replaced it with an NVidia 8500GT and the problem has gone away. I suspect it's the Radeon

Dave

Unplugging the cable doesn't do it for me. If I switch inputs on the TV and then back, it loses the signal too. Would a resolution change wake up the TV? If somehow I could get a batch file or something that I could tie to a key on my keyboard... any ideas?

Axiant,
Do you have a Radeon graphics card? If yes then you should be aware that there was a bug in the the catalyast drivers about two years ago that caused the problem you are having. It was then fixed about a year and a half ago but was broken again for several Catalyst driver releases. If you do not have current or recent Catalyst drivers for you Radeon card get them from the ATI Website.

No, I have a PNY Nvidia GF 8600 GT. I just updated the drivers though so we'll see what happens. They are dated July 26, so hopefully those work.

Seems like a similar problem and solution as this:

http://www.avsforum.com/avs-vb/showthread.php?t=899324

Yup, that was the dvi blanking issue if I remember correctly. Use to drive me nuts until I found the correct driver.

I'm having a problem getting my PC to display correctly through the DVI -> HDMI to my Panasonic PX77U. The screen shows up at 1280 x 720, but it's cutting off parts of the sides and the top and bottom. I can change the resolution to 1152 x 648, it will now show the whole screen, but there is a black band all around the outside. Is it possible to get the display to fit correctly on the TV screen?