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No video signal at boot after upgrading monitor?

by BobMac51 / May 29, 2010 2:06 AM PDT

I've upgraded to a new 21-inch flat panel monitor with DVI input and now get no video signal from cold boot until Windows (XPSP3) starts. Previously, I had a 17 inch flat panel with analog input and always got the video card info, BIOS, etc. when booting up. Now the new monitor (Viewsonic VP2130b) displays a 'DVI-D no signal' message and goes dark until the XP splash screen. Interestingly, when I do a reboot, I do get the video card info, BIOS, etc. The video card is an Nvidia GeForce 6200 AGP 256mb and is connected to the monitor with a DVI cable. The screen resolution is set for 32-bit color with 1280x960 resolution. Apparently, something is set wrong, but I can't figure out what that is. Thanks for your suggestions.

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Did you expect a higher resolution?
by ahtoi / May 29, 2010 2:38 AM PDT

With dvi or hdmi, the highest resolution you can get..is the native resolution of the monitor. You want higher, you need to use the vga connection.

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Did you expect a higher resolution?
by BobMac51 / May 29, 2010 3:30 AM PDT

Resolution is not the issue. From the time I push the button to start the PC until the time Windows starts, the monitor gets no video signal at all.

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After windows started,
by ahtoi / May 29, 2010 3:06 PM PDT

what is the video card resolution sitting and what is it suppose to be? I am curious.

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Resolution is set to 1280x960
by BobMac51 / May 29, 2010 11:56 PM PDT
In reply to: After windows started,

Viewsonic recommended resolution is 1600x1200, but I can't read anything at that resolution without glasses. Regardless of what the resolution is set to, the monitor reports no DVI signal from bootup until Windows loads, at which time the Windows XP splash screen comes up.

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It sounds like 1600X1200 is not what you want anyway;
by ahtoi / May 30, 2010 1:39 AM PDT

Why not just use the vga connection?

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Sorry my mistake.
by ahtoi / May 30, 2010 1:41 AM PDT

I forgot the monitor don't have an vga input, sorry.

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Not a solution.
by R. Proffitt Forum moderator / May 30, 2010 12:00 AM PDT

Well not for all. This issue is painfully well known with home brew gear. The ready to use machines fix this before it goes into production with changes to the BIOS either the machine's motherboard and sometimes the video card's BIOS (yes, there is a BIOS on video cards.)

Ok, here's what I try. In the machine's motherboard bios I'll try to find a PRIMARY DISPLAY or similar entry and try the other options there. Again, this is NOT a Windows setting but a machine setting.

If you have the document or manual for your motherboard's BIOS, post the link and I'll read it.

Subscribed so I'll know if you reply,

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Thank you.
by R. Proffitt Forum moderator / May 30, 2010 4:06 AM PDT
In reply to: Link to the MB guide

Let's skip to page 60. Notice the Video configuration?

Keep going to page 70 and we have very little in the way of options but try both PCI and AGP.

Not always a fix, but do try.

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Video configuration
by BobMac51 / May 30, 2010 12:43 PM PDT
In reply to: Thank you.

AGP Aperture Size is set to 256MB to match the video card. Have tried other aperture sizes, doesn't seem to make a difference. Primary Video Adapter is set to AGP.

Beginning to wonder if this video card -- Nvidia GeForce 6200 AGP -- has sufficient power to light this monitor, especially at higher resolutions. It doesn't have it's own power lead; draws power from the AGP slot.

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Seems I failed here.
by R. Proffitt Forum moderator / May 30, 2010 8:46 PM PDT
In reply to: Video configuration

"Primary Video Adapter is set to AGP."

I offered that I try the other settings. Since reading your post I don't read where you tried that other setting I see I failed here.

Hope another member can explain this better.

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You're suggesting..
by BobMac51 / May 31, 2010 12:30 AM PDT
In reply to: Seems I failed here.

...that I set the primary video adapter to PCI, the only other available choice? Why? There's no PCI video card in the PC, and there's no onboard video.

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Sorry it looks like I failed you.
by R. Proffitt Forum moderator / May 31, 2010 1:10 AM PDT
In reply to: You're suggesting..

I've shared what I try and it helped a few machines. I see that you want more assurance than I can offer. Let's see what offers can do here.

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Just a suggestion.
by ahtoi / May 31, 2010 5:59 AM PDT
In reply to: Video configuration

I think your problem might be because your monitor is too good for what you need. Get a monitor with a lower natural resolution (.....X900) or a monitor which have a VGA connection. Maybe one with LED backlited, it is suppose to have better contrast which might be easier on the eyes.

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