First of all, thank you to anyone who's taken the time to review this post:

I've read every single HDMI-DVI related post and I haven't found one situation similar to mine.

Here's the info:

TV: Samsung LN-S3251D LCD HDTV
PC Vid Card: PCI-E 6800 GT (has 2 DVI outputs; I assume for dual monitor capability)
HDMI-DVI Cable: Monster from Best Buy

If anyone isn't familiar with that model of Samsung, it has 2 HDMI inputs, and 1 PC VGA input.

Whenever I connect my PC to my LCD via PC VGA input, works with no problem. Although the whites appear a little bit yellow.

I have tried every single resolution option available for my video card and cannot seem to get a picture on my LCD. LCD constantly says "searching for signal" - whenever I disconnect the DVI end from the PC, but have the HDMI end still connected to the LCD, the message changes to Check Cable. So, the LCD is recognizing an establishment between the PC and itself. It just wont pull any signal.

I've looked into the video card properties for the "Force 720p" option and I do NOT have that choice.

If anyone could provide me with a few troubleshooting tips I'd greatly appreciate it. If more info is needed, I will provide you with whatever you need. I'm just a lil torqued cause I just dropped $100 on a cable I can't use.

Thank you in advance -

Joe

Don't take this wrong, but $100 for a cable?

I am using a 6200 on a Samsung 26" DVI to HDMI. It works. But the resolution is not right yet. The TV would not recognize the HDMI input when the computer wasn't on. As soon as the computer was turned on, I could hit the source button and it selected HDMI. So it sounds like you got the TV to see the computer connection.

What drivers are you using. I set mine to clone the display on both outputs even though I am only using the one. It also sees the Samsung by name as a display.

I am using 81.98 drivers.

I have this same exact issue with the Samsung HLS-6187W 61" DLP. If I switch inputs and try to switch back to the PC it will not show a video signal, I just get "check cable" until I unplug the HDMI cable.

If I turn the TV off while the PC is plugged in and turn the TV back on I have to reboot the PC to get a video signal.

It's almost like once the TV no longer needs the video input, the connection will not turn back on until forcefully done.

Should I set the computer resolution to 13??x768? I believe that's the native resolution of my Sammy lcd -

Oh yeah and the cable was only $80 but still, it was a waste of money...

I have this same exact issue with the Samsung HLS-6187W 61" DLP. If I switch inputs and try to switch back to the PC it will not show a video signal, I just get "check cable" until I unplug the HDMI cable and plug it back in.

If I turn the TV off while the PC is plugged in and turn the TV back on I have to reboot the PC to get a video signal.

It's almost like once the TV no longer needs the video input, the connection will not turn back on until forcefully done.

EDID gone awry.....

May want to look into Gefen's DVI Detective if you can boot with a PC connected but not change inputs or turn off the PC without losing image.

If you can't get a picture at all, try a lower resolution like 640x480. Consult your TV manual for compatible input resolutions.

This issue has to do with the way that some TV's power down/power up their unused inputs, and the way that some DVI PCs recognize when they need to power up the DVI port.

One on the one hand, TVs do all kind of things to their electronics when an HDMI input is de-selected. For example, some will only turn off the DDC pin (to indicate to the source that there's nothing there and to get HDCP turned off). Some will only turn off the TMDS electronics. Some will only de-assert the HotPlug Detect pin. Some will turn off DDC, TMDS, HotPlug Detect, and the 5V line. Unfortunately, no one was able to come up with a standard that dictates exactly what must be done with these particular signals during an input de-select event, so all are allowed.

The key is that the source device should recognize all these possible permutations, and know that it should monitor these signals for a change state, which indicates that the TV's HDMI input has been re-selected and is now active. The source should then reset its video output (re-read EDID, and then turn on accordingly). My guess is that the drivers for your source don't recognize the specific standby-> power up conditions that your TV presents, so it knows to turn off the video when the HDMI input is de-selected, but doesn't know what conditions to look for to turn the DVI output back on.