Problems with VGA output

Sparkle / Nvidia geforce 8400 gs
January 17, 2011 at 07:22:49
Specs: Windows 7, 3GHZ / 2GB
Hi I have an Sparkle NVIDIA GeForce 8400 GS, that have a strange problem, and i don't know how to go around it.

The problem is that she post using her DVI output, using my son's monitor who is DVI ready, using a DVI to DVI cable.
If I try using my monitor who works just fine using the motherboard VGA output or even my son's computer VGA output from his graphics card.... do not get signal from my card... and even using an adapter DVI to VGA works... I'm lost... can someone tell me what is wrong here? please.

Thanks


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#1
January 17, 2011 at 08:03:59
You should be able to connect the monitor to either DVI or VGA or one monitor on each (with or without the DVI/VGA adapter) on your card. Your motherboard VGA port WILL be disabled unless your bios allows an option for both (not recommended really though). If the monitor works on the DVI port but not on the VGA port, try a different cable, you could have a bad cable. If changing the cable does not help, you MAY have a problem with the monitor's VGA circuitry, but look into the software for your video card and see the monitor set up, there may be options you need to select, like setting up dual monitors, but switching ports after one was set up may need resetting things.

You have to be a little bit crazy to keep you from going insane.


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#2
January 17, 2011 at 14:17:12
you didn't get really the point, my monitor works connected to the motherboard VGA port but do not work if I connect it to the VGA slot of the card when installed, but if it is a DVI monitor connected to DVI connection in the card it works ok, its like if the card had a VGA connection but was not VGA compatible..... If in this way I make me clear

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#3
January 17, 2011 at 21:25:59
Read the second part.....
Once you set up a monitor on the DVI output, it's output will be treated as Monitor #1, SWITCHING the/any monitor to the other output, in this case the VGA output probably needs to be set up in the software, try setting up a second monitor to the VGA output while the DVI one is still there so you can do the set up, if both work, you should be fine then removing the DVI one if that is what you want (but DVI for the monitor that has the choice is better).
If you can still use the onboard video connection, you should disable it in the BIOS, or choose 'active only if PCIe video is not present' to reduce conflicts and stress on the system.

You have to be a little bit crazy to keep you from going insane.


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Related Solutions

#4
January 18, 2011 at 12:16:48
Ok I connected the digital display of my son and is working with the dvi connection from the card, I plugged in my VGA display and conected it to the vga slot, the card finds the monitor, but no signal is going to him (the monitor says: RGB No Imput Signal) he just don't receives signal at all, I connect it to other card in my friend computer and he works, in my integrated VGA from the motherboard and works he just don't work in this card... I do not understand..... other thing when trying to play some 3D games they crash and give unknown error. (or an error as occurred, and just goes to the main screen)

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#5
January 18, 2011 at 12:50:38
I got this info from the card using TestMyHardware program:

http://img710.imageshack.us/img710/...


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#6
January 18, 2011 at 20:27:02
You may have a problem with the card (I assume you opened NVidia control panel and made sure both were activated as dual monitors from there), but first try downloading the newest drivers from the NVidia and see if that helps. If it doesn't, contact where you purchased and/or Sparkle and see about getting a replacement under warranty.

You have to be a little bit crazy to keep you from going insane.


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