Is there a setting that needs to be changed in the hardware or software for the monitor to use DVI. The analog VGA works fine. The video card is a NVidia GeForce FX5500 going to a NEC Multisync LCD 1935NXM. Thanks.
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Any contemporary monitor is able to switch analog/digital mode automatically if connection from signal source to monitor is set up properly.
Connect digital output from your graphic card to DVI input of the monitor. Disconnect any other signal cables from monitor and switch on both devices (PC & monitor). Wait a while. Monitor checks its inputs and a activates digital DVI, because it is only one active input on it.
If none picture excluding error message of monitor is displayed, go through these steps: 1) Check whether your monitor is set for automatic input selection. If monitor buttons have no response try to use analog input to activate screen (any picture, desktop background...) and then get monitor menu access by pressing menu button.
2) Find out what connector type has your graphics card in PC. Possibilities are: DVI, HDMI, DisplayPort and some their options. See Wikipedia for connector look if you are not sure. Remember that blue D-SUB (VGA) connectors are analogue and you cannot activate digital mode through analog VGA cable.
3) Use appropriate cable to connect monitor to PC. Example: Your PC has HDMI output. Use HDMi-to-DVI cable. Your monitor input is DVI and common DVI-DVI cable is not suitable in case you have PC with the HDMI. Note that DVI-to-DVI, DisplayPort-to-DVI etc. cables are available. You must buy right one.
Be aware that "Auto" button is inactive in digital mode of monitor.
HDMI is digital
VGA (the 15 pin connector) is analog.
If your connector has the digital to analog interface it should work, but likely it does not have that chip and thus will not work.
Your description of the problem tells me it may never work as you have it connected. Possibly it might be that the monitor is required to be powered on before the laptop is booted, but that only works in some cases.
I have also seen some work if a 2-step connector is used.
VGA to DVI connector, followed by DVI to HDMI connector.
DVI was the step toward digital that came before the HDMI standard was implemented and was only partially digital. DVI and VGA do not carry control signals nor audio. HDMI carries both those as well as the video.
YMMV but I think it would be cheaper and more efficient to actually purchase a monitor with a digital input (HDMI or DVI).
Without the digital/analog converter interface a digital output device (your laptop with HDMI out) can never operate an analog device (your Dell monitor with VGA input).
I'm guessing you are using a the VGA input of this monitor (the smaller "D" shaped connector with 15 pins) on the back. If not, and you are using the DVI input (larger white connector), then check your PC video output. I've seen this occur with HP monitors when they accidentally get set to "digital" input. Its easy to set that way (even by mistake), but not as easy to reset to analog (VGA). To do that, you'll need to find someone with a DVI output on their video card. Once you connect to a DVI source, the monitir will come on and stay on. You then need to go into the menues of the monitor, find the setting and change it back to "analog". After you do of course, you won't get an image on your monitor until you reconnect to an "analog" (VGA) source.
When you connect the computer to the monitor via an analog VGA cable, you get signal on the analog input. When you connect them via a DVI cable, you feed the monitor's DIGITAL input, so the monitor doesn't get any signal on it's analog input, and informs you about it. You have to select the digital input from the monitor's On Screen Menu, and then start the computer up - you should see the picture OK. Also remember to set the display resolution on your computer to match the optimum (native) resolution of your monitor - this will give you optimum picture quality. In case of VA712B it will be 1280x1024. Good luck and please come back with a testimonial if helped.
There are 3 different types of DVI output - DVI-I : DVI-D : DVI-A
The motherboard in question uses DVI-D. The D stands for digital. VGA is analog, so in order to convert the DVI outputs on the motherboard, you will have to make sure you have an ACTIVE converter like the one in the link below.
To clarify, you know that analog is referring to the VGA 15 pin video input, and digital is referring to the DVI video input, right? You can't have the digital video unless you use the DVI input, which requires a DVI output from your computer (and a DVI cord of course).
If you already knew this and you mean that it won't switch over to your DVI, then there could be several problems. Most of them being with your DVI signal source (computer). Try booting the PC with ONLY the DVI cord attached between the PC and the monitor. If you have a VGA cord plugged into either, UNPLUG IT FROM BOTH ENDS.
Is ether the monitor or video card uses both DVI or VGA port. There may be a switch on the graphic card that changes it from DVI to VGA, often outside the card.
Also is the computer monitor set to the right setting if it can use both VGA and DVI, if using DVI (of any type) it need to switch to digital, and if using VGA it need to be set to analog. This may be a physical switch or using the settings button. (see manual how to change them)
PS: VGA port is a blue D shaped port with 15 pin holes, and DVI is a white rectangle port with one port being a line.
1. It could be limitation of your video card. Older cards would not support high resolution for LCD monitors.
2. Be sure to use DVI(digital) output from your video card. You will not get a good resolution with VGA(analog)
3. When installing driver for a monitor sometimes you will get a chose to install analog(VGA) or digital(DVI) driver. Choose the correct driver.