Question about LG Flatron L1810B 18.1" LCD Monitor

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Display input This LCD monitor has two input, one from VGA connector and another from DVI connector. It works when it is connected with VGA cable but dose not work with DVI connector alone. Any suggestions? Thanks a lot! K

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You have to make sure the dvi connection is turned on.

Posted on Jan 21, 2008


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in this situation, there are two options. 1.The device connected to your TV via DVI cable is off. 2. DVI cable connected to the HP L1950 is burned.
if you try to connect a device to the HP L1950, it has two ways to connect:
Input Signal - Two connectors: one 15-pin mini D-sub analog VGA and one DVI-D. Try VGA them.

Apr 06, 2014 | HP L1950 Monitor

1 Answer

I need to connect a VGA dell monitor my Toshiba Laptop

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).

Mar 12, 2017 | Dell E193FPp 19" TFT LCD Flat Panel...

1 Answer

A blue display box continually pops up with Input Select D sub DVI. I am thinking it is something to do with the monitor. What is wrong?

This monitor has two types of video inputs, a 15 pin VGA D-sub connector and a DVI connector.
If the video card has a 15 pin D-Sub then connect the video cable to the 15 pin D-Sub connector on the monitor.
If the video connectors are DVI then connect the video card and monitor with a DVI video cable.
You will also need to configure the monitor for either the D-Sub or DVI video input.

Aug 03, 2011 | BenQ FP91G+ 19" LCD Monitor

1 Answer

I have a dell dimension 3000, bought a new HP 2310E monitor with 3 ports. DVI, HDMI & display port. Told to buy a cable with VGA to connect to dell and DVI to connect to HP Monitor display port....

Hi sshorne9780,

I see that you are having a check input error on the Monitor/LCD that your are connecting to your Dell tower, please see steps below.

  • On your HP 2310E make sure that your HP is set to the input/source that you are using and make sure that you only use one type of video cable for the issue.
  • I see that you mentioned that you have a VGA cable and a DVI cable, you can only use one type of cable for a video connection.
  • VGA would be the Blue tipped cable connecting to the tower and going to the LCD monitor.
  • DVI this is a black cable connecting to a white port much bigger than a VGA port and is rectangular in shape unlike the VGA
  • moz-screenshot.pngmvincentc_34.jpg
  • and on your LCD monitor check the input type to see video from the tower.
  • everything seems to be OK you just need to change the input of your LCD monitor for the video to show up on the screen.
  • also if you are using HDMI for the video u will need to change the setting of your Audio and set HDMI as the Default to have Audio come out from the HDMI connection together with video, the HDMI viedo will automatically be detected as long as the LCD monitor's input is set to HDMI.
I hope that this will able to help resolve your concern.

Thank you for choosing Fixya,


Apr 18, 2011 | Dell Dimension 3000 PC Desktop

1 Answer

Connectivity card from montior to CPU is different than other PCs, in back side of the monitor its showing to type VGA and other one DVi connector, In my CPU i dont have the slot for the DVi connector,...

DVI ==> Digital Video Input
If your monitor has both DVI and VGA inputs,
and your PC's video-card has both DVI and VGA outputs,
then buy a DVI-to-DVI cable, and use it, for a better picture.
If your monitor has both DVI and VGA inputs,
and your PC's video-card only has VGA output,
then use a VGA-to-VGA cable.
Or, purchase a video-card with DVI output,
to replace the video-card with VGA output,
and then use a DVI-to-DVI cable.

Feb 21, 2011 | Acer X193W LCD Monitor

2 Answers

Samsung syncmaster 2033sw monitor, till now i was using a vga cable for the display, but recently i bought a dvi cable and connected it. but its not detecting the display of dvi cable. if i remove the vga...

LCD Monitors having multiple inputs have option and option to select and switch between the displays from analog (VGA) or Digital (DVI) inputs. Go to the LCD menu and select input source (DVI)

Hope this helps!


Nov 15, 2010 | Samsung Syncmaster 2033SW Monitor

5 Answers

Hi,how do I know wheather I need DVI or VGA cables to connect CPU to a Monitor.I sold monitor when I got laptop now I want set up the Dell Dimension 3100 as aback up,so I'm looking at wide sreen monitors...

Most of the Widescreen monitors come with DVI as well as VGA connector. A VGA connector and DVI connectors are different in many aspects. First of all the DVI connector would be white in color and VGA would be blue.
VGA connector has 15 pins and DVI has 24 +1 pin

Sep 02, 2009 | Dell Dimension 3100 PC Desktop

2 Answers

"No signal detected" when LCD connected with DVI-D Cable

Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.

Perhaps these simple trouble shooting procedures will get the job done.

1. use the DVI to VGA adaptor that came with your card

Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary

2. plug in the your LCD monitor on Secondary Display port using your DVI cable

At this point you should be able to see your desktop on the Primary CRT Display

3. Go to the display properties and use the Nvidia Dual Display Setup Wizard

set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel

If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )

At this stage both displays should be showing a Windows Desktop

If you now see your desktop on both displays , you can now put the LCD on the Primary Port

No Signal Detected ( this means the display device is not receiving a signal )

If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.

If you are certan you have done everything correctly but still see only "No Signal Detected"

Your LCD Display may need replacement

Loch Hime :-)

Sep 14, 2008 | BenQ FP71E 17" LCD Monitor

1 Answer

DVI connection

Did you try your monitor with another output (VGA)? If not, try it.
So, you have to check and make sure where the problem is (display card, monitor, or cable). Try with another cable or monitor. This way you will know where the problem is. If you don't have another monitor, try the monitor you have with build in VGA output on motherboard by taking the display card out.
Thank you,

Mar 04, 2008 | LG Flatron 295LM 22" LCD Monitor

3 Answers

DVI input on monitor not working

Contacted viewsonic about this issue- they suggested- have both dvi and vga hooked up to same machine. start with poweroff on both. power on monitor, then power on computer. when you see display coming from the vga, power off pc, then disconnect vga cable, turn off power to monitor, disconnect power cord from monitor for 5 + seconds, reconnect power cord, power on monitor, then power on pc.
If this doesn't work to get the dvi working, (as happened to us) we returned our monitor for a replacement, since it was still under warranty.

Sep 17, 2007 | ViewSonic VX2025wm 20.1" LCD Monitor

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