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Why won't my monitor display POST info over DVI, but does over VGA?

3309 Views 3 Replies 3 Participants Last post by JohnWill, Jan 12, 2007

St!nkf!nger

Discussion Starter · Jan 12, 2007

I figured that it was a problem with my Gateway FPD2185W monitor, so I called and they sent me a new one. However, now that the new one is here the problem persists.

Ideally I'd like the monitor to run off the DVI cable from the pc because my 360 is hooked up to the VGA input. But like I said earlier, when the monitor receives the picture from the DVI it doesn't display the POST test information. This makes it really hard to get into the BIOS to make adjustments. However, if the picture is fed to the monitor via the VGA input everything works hunky dory. Anyone have any idea why this is happening? Gateway has no idea. I use a Radeon X800 XL graphics card if that helps.

Thanks in advance,

Todd

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ChuckE

· #2 · Jan 12, 2007

It depends upon the video card. The card has to select one of the multiple outputs to send the primary video signal. Evidently your VGA output is the primary, at least before Windows gets loaded (as would be during POST). Once Windows is loaded then Windows can be told which will be the "primary" output.

See if there are any switch or jumper settings on your video hardware to force the determination of primary video output during initial power-up.

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