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More monitors with one system unit

Connecting two or more monitors with one system unit using a video card

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  • UKJEE May 20, 2008

    It was cool, thanx for the idea...

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If the video card has 2 ports (Normally 1 VGA and 1 DVI, though some now have 2 DVI) then you can use 2 monitors.

Once connected, go to display properties, click monitor #2 and check "Extend my Desktop to this monitor" Click OK

Posted on May 18, 2008

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When I turn on my computer monitor it goes to sleep within a few seconds. What can I do?


For desktop computers: check that the computer is on. Make sure that the monitor is connected to the correct port on your computer. Some desktops have graphics ports on the motherboard and a separate video card. In that case, the motherboard port(s) will be disabled.

Try a different cable and make sure that both ends are secured properly. (If there are multiple input options on the computer and the monitor, try a different port. Sometimes, a port fails. There are adapters available for DVI to VGA or DVI to HDMI if you don't have extra inputs on the monitor.)

Try a new video card and check that your Power Supply is rated to power the entire system. (Some video cards will not work at all if the power supply does not provide enough power to the card. Some power supplies have multiple rails and can't give enough power even though the overall power is sufficient.) Unfortunately, if you have been using a video card, connecting the

If you are connecting the monitor to a laptop, make sure that the external video port is enabled. Some machines will have the port disabled to save power.

If this was the first time using the monitor, make sure that the computer was off when you connected the cable. Then turn on the monitor and select the appropriate input (if needed) before turning on the computer.

I hope this helps.

Cindy Wells

Jul 12, 2014 | Computer Monitors

2 Answers

I have sapphire ati radeon 5570 graphics card. i have aoc 912sw+ 19 inch lcd monitor. how to connect hdmi port of graphics card with monitor?


the HDMI port is for connecting video and sound to a home theatre / surround sound system. I understand that this monitor only has a VGA connector.

The sapphire ati radeon 5570 graphics card has the following ports on the back to connect to a display: DVI (white), VGA (blue) and DisplayPort (the thin slot in the middle). You can use an ordinary VGA cable to connect the card to your monitor.

Unfortunately you cannot connect this card directly to your monitor using the DisplayPort.

Hope this helps

Tom

Jul 21, 2011 | AOC 912SW-4 Monitor

1 Answer

Why does the Little Green Light on the front of my Monitor just Blink and the Monitor will not come on ?


The monitor is not getting any "signal" from the video-card.
Check that the video-cable is connected to both the monitor and to the video-card.

Try connecting the monitor to a different desktop/laptop,
to see if the monitor works "elsewhere".

Try connecting a different monitor to your desktop, to see if the video-card is the problem.

Sep 18, 2010 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

My monitor does not bring the bios set up and up saying no input signal what are the solution and causes


Check that the "data" cable is tightly-connected at both ends (monitor & video-card).

Try connecting the monitor to a different desktop/laptop computer, to see if the monitor works at all.

Try a different "data" cable between the monitor and the video-card;
obviously, your monitor's "power" cord is working, and thus, there's no need to swap that cable.

Try connecting a different monitor to your computer, to see if your video-card is transmitting any signals.

Temporarily swap-in a different video-card, to see if the video-card is the problem.

If all else fails, take the computer to a technician at a computer-store.


Aug 16, 2010 | HP w1907 LCD Monitor

1 Answer

I am trying to connect a Sceptre monitor


Will the monitor work on another computer? Will the computer work with a different monitor? Are you connecting the vga port to vga output on the video card or the dvi input to the dvi output on the card. You may need a video card with hdmi output.

Jul 17, 2010 | Sceptre X24WG-NAGA Monitor

2 Answers

Monitor changed to yellow colour.... what is the problem...?


Monitors mix the 3 "primary" colours, in various proportions, to produce all other colours.

Mix equal parts of all 3 colours, and you get WHITE.
Mix equal parts of only 2 colours, and you get YELLOW.

So, either:
1. your computer's video-card is not sending the 3rd colour;
2. your video-cable between the computer and the monitor is broken, and is not transmitting the 3rd colour;
3. your video-cable is not TIGHTLY connected at each end;
4. the electronics inside the monitor that SHOULD be producing the 3rd colour have failed.

Try connecting the monitor to a different computer, with the same video-cable. If it works correctly, your video-card is the problem.

Try connecting the monitor with a different video-cable, to see if replacing the cable fixes the problem.

Try connecting the monitor to a different computer, with a different video-cable. If it still is incorrect, then the monitor needs repair/replacement.

Jan 14, 2010 | Computer Monitors

1 Answer

My packard bell lcd monitor shows orange then sometimes green light but has totally black screen. If power supply giving insufficient voltage would this cause above problem?


> insufficient voltage cause ?

Well, anything is possible, but other things are more likely:

1. loose connections of the "data" cable between the monitor and the computer's video-card;

2. an electrical "short" in the data-cable;

3. a "dying" video-card.

So, try the "free" stuff first:

Check the connections.
Try a different cable.
Try connecting the monitor to a different computer (laptop?).
Try connecting a different monitor to your computer's video-card.

Then, consider buying & installing a new video-card.

Nov 18, 2009 | HP Computer Monitors

1 Answer

? dell monitor to compac ?


Since you didn't post the Model of the Compac, All I can give you is some general information.

1st, does the monitor work on another system? (Is it a known good monitor?)

If it works on another system, then the issue is with the system, or the connection to the system.

Check the connection to the system (Some systems have both on-board and expansion video cards, if the system has an expansion card the on-board video is usually disabled)

Make sure the cable is correctly connected to both the system and the monitor and no pins are bent.

If the monitor has not been tested, then try connecting it to a system you know that works.

Apr 19, 2009 | Dell E153FP 15" LCD Monitor

1 Answer

MGA 1164SG R3 video card work


You can connect it to your old monitor. As a safe method before connecting the lcd monitor to the old system go to ---- control panel --- display. Double click on it and select settings ----- advanced

Here select - monitor---->monitor settings ---> screen refresh rate. Select a low refresh rate (60 or 70,72). Press apply then ok.

Switch off the pc and remove the old monitor and connect the lcd monitor. It will work.

Nov 12, 2008 | Samsung SyncMaster 740N 17" LCD Monitor

2 Answers

Connecting second monitor


Not sure If I am understanding this correctly, you are trying to connect a monitor to a monitor? I have never heard of that before. As far as I know you need a video card that has dual output to use dual monitors. I am not saying you can't do what I think you are saying but I never heard of that before. Also on a side note depending on the resolution and amount of colors your operating system is set on, you need a video card strong enough to drive both monitors.

Dec 18, 2007 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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