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Dual monitors Video runs fine on primary monitor but when moved to secondary it goes black. Is there a fix?

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  • tittat Mar 25, 2008

    I'll try that thanks!

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Reduce the display settings on the secondary monitor, set them low or to the natives of the external monitor.

Posted on Mar 24, 2008

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Why is my monitor not displaying past start-up and how can I fix it?


You say that the problem occurs when you connect your secondary monitor up either solely, or as primary, but it also occurs when you have only the primary monitor connected Therefore I think the problem is inside your computer box not the monitor or cables.
I'd try another graphics card (the specs I have say the default the graphics is 1024MB NVIDIA GeForce GT220, but then they also say Win 7 Prof - http://www.pc-site.co.uk/reviews/dell-business/dell-vostro-230-mini-tower-desktop-review), either to the built in one (if your m/b has on-board graphics facility), or a different card (which may be the same model). Have a look in the BIOS too.
14.May.214

May 14, 2014 | NEC LCD1712 17" Flat Panel LCD Monitor

1 Answer

I have an VGA adapter on the cord b/c 15 pin male/9 pin female is almost impossible to find. Anyway when I connect to two monitors to the pc only on monitor comes on the other does nothing. comfirmed both...


http://www.amazon.com/Female-HD15-Male-Adaptor-Molded/dp/B000I97FGA/ref=sr_1_2?ie=UTF8&qid=1352480644&sr=8-2&keywords=9+pin+female+connector

9-pin female to 15-pin male RS232 adapter

This = NO

http://support.gateway.com/s/PC/R/1009371/1009371rv.shtml

You cannot run dual monitors off of the motherboard.
BIOS will assign only one IRQ.
(Interrupt ReQuest )

That 9-pin connector (C) is a Serial port. This = No

http://support.gateway.com/s/PC/R/1009371/1009371rvr2.shtml

http://en.wikipedia.org/wiki/Serial_Port

You need a graphics card.

Don't be thinking of one monitor to motherboard, and one monitor to graphics card.
One IRQ, and it's assigned to either the -> motherboard graphics (Integrated), or a -> dedicated graphics card.

Two monitors to graphics card.

I am using a lesser model;
ATI Radeon 9250, and it's a PCI graphics card.
Goes in a white PCI slot.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5247980&CatId=1603

My PCI-Express graphics card gave up the ghost. (8 years old. It's cool)
I replaced it with the Radeon 9250 so could run dual monitors again.
Does fine for on here, Adobe Photoshop 7, YouTube, etc. Not a gamer.
(I have a Powercolor HD5450 PCI-Express graphics card I'm going to use, when I get off my duff, lol! Requires a 400 Watt power supply)

I use an HP 2009m 20-inch widescreen, as my Primary monitor, (Left side of computer desk), and a Philips 26-inch HDTV as my Secondary monitor. (Right side of desk)

Do you have two VGA (CRT) type monitors, or is one a flat LCD screen digital monitor?
Some flat LCD screen monitors have dual hookups.
One for a VGA cable, and one for a DVI cable,

http://en.wikipedia.org/wiki/Digital_Visual_Interface

If you have two VGA monitors that are the CRT type, (Looks like a small TV), and your graphics card has 1 VGA port, and 1 DVI port, they make a VGA to DVI adapter. Just make sure you get the correct one.

VGA port on graphics card is Female.
DVI cable connector is Male.
This is the usual standard.
This is the type of VGA to DVI adapter that is required,

http://www.directron.com/dviadapter.html

ALWAYS, install the software off of the Installation disk that comes with the graphics card -> FIRST
Install the drivers, and the user control panel.

(Driver: Small piece of software that allows the Operating System to communicate with a device.
The graphics card is the device, do not know what version of Windows you are using.
User control panel = ATI - Catalyst Control Panel. Nvidia - Nvidia Control Panel )

Do Not worry that you will loose graphics, after installing the graphics card software. Windows will Not use the software until THAT graphics card is installed.

Then after finished close all windows, go back to your desktop screen, and turn the computer off.
Unplug from power, FOLLOW Anti-Static Precautions, and physically install graphics card.
(Need to know about Anti-Static Precautions please post back in a Comment)

Set your main, or Primary monitor on the left side, Secondary monitor on the right; of your computer desk.
Turn the monitors on. If a CRT type allow them to warm up.

Turn the computer on. Once Windows has loaded your desktop screen will be on the Primary monitor.

1) Right-click on an empty area of your desktop screen
2) Left-click on Properties
3) Left-click on the Settings tab

The blue No.1 monitor icon is the Primary monitor
The blue No.2 monitor icon is the Secondary monitor.

4) Left-click on the Secondary monitor icon.
5) Left-click in the empty square box to the left of -
Extend my Windows desktop onto this monitor

6) Left-click on Apply at the bottom right
7) Left-click on OK at the bottom left.

Your desktop screen will now be on both monitors.
(Advisory comes up asking if you wish to keep settings? Yes)

Open your internet browser.
Move your mouse cursor to the Right side of the blue frame/border.
WHEN your mouse cursor turns into a Double-Headed Arrow, hold the Left mouse button down.

It is a little tricky to keep the mouse cursor as a Double-Headed Arrow. Must be that, and then hold the left mouse button down.

Holding the left mouse button down move your mouse to the Right, and drag the blue border of the internet browser to the Right.
Keep dragging until it is all the way to the right side, of the Secondary monitor.

Now you have your internet browser on both monitors.

I run the internet browser on my Secondary monitor, (26-inch HDTV), and use the Primary monitor to look at computer functions, motherboard manuals, etc.
Or I move the internet browser to the Primary monitor, play music videos from YouTube, and use the Secondary monitor for Photoshop.

The world is your oyster.

So there you have it. You need a graphics card, and it has to have dual monitor inputs. (Ports)
Splitter cable thing? I wouldn't bother.

IRQ - http://en.wikipedia.org/wiki/Interrupt_Request

Buying a graphics card:
Depends on what you want to do with it for one.
You can see the simple stuff I do, doesn't require much graphics power.
(More than Integrated Graphics, though, and can't use dual monitors on Integrated Graphics)

The next concerns are what type of graphics expansion slot/s do you have, and how much Wattage (Power) the Power Supply has.

You have a 300 Watt power supply, unless it has been replaced,

http://support.gateway.com/s/PC/R/1009371/1009371cl4.shtml

(Scroll down; Power Supplies)

Your motherboard has 2 white PCI slots. If one is available it can be used for a graphics card -> Not recommended

Your motherboard has one Black PCI-Express x16 expansion slot, that is used for a graphics card, also.
It is right above No.1 white PCI slot.
Highly recommended.

(Gently Pull UP on the PCI-Express x16 slot -> Lock
It looks as though you press down on it, when installing, or removing a graphics card )

http://support.gateway.com/s/MOTHERBD/INTEL/4006158R/4006158Rnv.shtml

So when looking for a graphics card, look for PCI-Express graphics card, and system requirements / minimum power requirement; states 300 Watt power supply, or greater.

For additional questions please post in a Comment.
I know that is a lot to take in all at once. I can clarify anything you need clarified.

Regards,
joecoolvette

Nov 09, 2012 | Gateway GT5404 PC Desktop

1 Answer

Dual screen wont work


Kevin,

1) You cannot plug a monitor into the VGA connector, on the back of the desktop computer, AND plug a second monitor into a DVI connector, on the back of a desktop computer.

In otherwords you can only plug ONE monitor into the motherboard.

[ The I/O area on the back of the desktop computer, is the Input/Output area. This rectangular area has connections for Input devices, and Output devices.

Examples such as a Mouse, Keyboard, (INPUT), VGA devices, (VGA monitor - Output), USB devices, audio devices, (Speakers - Output. Microphone is an Input device), and so on.

The I/O area has a rectangular metal shield. (Thin metal plate)

Connecting a device in the I/O area, is connecting it directly to the motherboard.

Example of a VGA connector, and VGA cable,

http://en.wikipedia.org/wiki/VGA_connector

Example of a DVI cable, and DVI connector,

http://en.wikipedia.org/wiki/Digital_Visual_Interface

(There are several variations of DVI connectors.
Scroll down ]

To use dual monitors you need a graphics card also.
Graphics card with a VGA connector, or DVI connector. (Or both)

Monitor with VGA cable, plugs into the I/O area on the back of the desktop computer. (Plugs into the motherboard's graphic chipset)

The second monitor plugs into the graphics card's DVI connector, or VGA connector.

[ Just an example,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1416091&CatId=3669

On the image of the graphics card on the left;
Go under it to the subheading - + 11 larger images and views.

There are 7 views shown. One is the carton the graphics card comes in. (View 2 from the left)

Going from the left side, count over to the 5th view. Left-click on the 5th view. Shows you the 'business end' of the graphics card.

Starting at the left side it is the HDMI connector, then VGA connector, then DVI connector.

Note*
YES, you can plug a VGA monitor, AND a DVI monitor, into this type of graphics card, and have Dual monitors ]

FIRST:
Computer on, Windows running; Put the Installation disk (CD) in the optical drive's tray. (CD/DVD drive)
Load ALL software.
Drivers, and 'Control Panel'.

Graphics card software loaded, close all windows, go back to your desktop screen. Turn the computer off normally.

Unplug the computer from power. Open the computer case.
FOLLOW Anti-Static Precautions.
(Don't know Anti-Static Precautions? Post back in a Comment)

Physically install the graphics card. Close the computer case.
Plug the VGA cable of the Primary monitor, into the VGA connector in the I/O area, on the back of the desktop computer.

Now plug the DVI cable of the Secondary monitor, into the DVI connector on the graphics card.

(The main monitor you use is the Primary monitor. The second monitor you are going to add, is the Secondary monitor )

Plug the computer into power. Both monitors plugged into power, turn them BOTH on.
Turn the computer on.

When Windows loads you will see a display on the Primary monitor.
Your desktop screen.

Now Right-click on an empty area of your desktop screen.
In the list at the bottom, Left-click on - Properties.

In the Display Properties window that comes up, left-click on the -
Settings tab.

You will see two rectangular icons. 1 and 2.
1 is the Primary monitor. 2 is the Secondary monitor.

Left-click on the Secondary monitor icon.
Go down towards the bottom/middle on the left.

Left-click in the empty square to the left of -
Extend my Windows desktop onto this monitor

Go down to the bottom Right. Left-click on Apply.
Go down to the bottom Left. Left-click on OK.

Your desktop screen will now be on the secondary monitor.


When you open your internet browser, (Yahoo, or Google, or MSN, or Mozilla Firefox, etc), you have to DRAG the screen onto the secondary monitor.

(Let's use Yahoo for an example. Yahoo will be on your Primary monitor.
You need to drag Yahoo onto the Secondary monitor)

Which direction you drag, is up to which direction the two monitors are sitting, on your computer desk.

The way the monitors are sitting in Display Properties; the Primary monitor is on the Left. ( 1 )
The Secondary monitor ( 2 ) is on the Right.

This is the way the two monitors should sit on your computer desk.
(There is a way to switch them around, however)

On your Primary monitor, (Still using Yahoo as an example), go to the RIGHT side. See the blue frame going around the screen?

When you bring the mouse cursor ON the blue frame, it turns into a Double-Sided arrow.
It is difficult at first to keep the cursor as a double-sided arrow.

Move too far to the right, it turns into the usual pointed cursor.
Move too far to the left, and it turns into the usual pointed cursor.
have to keep it on the blue frame.

WHILE the mouse cursor is a Double-Sided arrow, left-click, and hold the left mouse button down. Now drag the screen to the Right.
(Move your mouse to the right)

Keep dragging until the Yahoo browser is on both monitors.

Different size monitors? The display will not be the same size, on both monitors.

[ I use an HP 2009m, 20-inch widescreen monitor, as a Primary monitor, and an RCA EN-V, 26 inch HDTV, as a Secondary monitor.

I have my desktop on the Primary monitor, and FixYa, (Firefox browser), on the Secondary monitor, right now ]

If this is not your problem please state in a Comment.
Also state additional questions in a Comment.

Regards,
joecoolvette

May 10, 2012 | Computers & Internet

1 Answer

I have a computer that i run dual montors on, both plug into the same video card, both monitors are crt's. my video card has 1 vga connector and 1 dvi connector. so i use a dvi to vga addaptor. now...


It is possible that you've got the resolution and vertical refresh rate set too high. CRTs tend to flicker if the vertical refresh rate is not set to about 72 to 75 Hz. If your screen resolution it set fairly high compared to what the monitor was designed to display it can overtax the video sweep circuitry in the monitor. If possible check the manufacturer's specs.

Often the video driver will let you specify different resolutions for primary and secondary monitor. If you can't find the manufacturer's specs it would be prudent to pick a less demanding resolution or vertical refresh rate for the secondary monitor.

Aug 10, 2011 | Computers & Internet

1 Answer

I have a dual monitor set up. I had a Dell monitor as the primary with a samtron secondary. Today I made a Viewsonic monitor the primary and moved the Dell to the secondary. However now the Dell switches...


You may need to check some configuration of dual monitors.

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/display_multi_monitors_select_primary.mspx?mfr=true

http://support.microsoft.com/kb/307873

Did you change the graphic card for the primary monitor? There could be a support between that graphic card and the monitor.
Did you check the power settings about monitor and disable any power saving plans?

Dec 05, 2010 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

Hello! I have a processor intel pentium dual cpu e2160 @1.80 Ghz and for display a graphic card NVidia GeForce 7300SE/7200 GS, DAC Type Integrated RAMDAC 512 mb. I use my VGA monitor connected to the...


Hello ghinea18, sorry you can't do that because this will cause hardware conflict, that's why motherboard bios automatically disable integrated graphics if you install video card using pci express x16 slot - Nvidia GeForce 7300SE. do you know if your video card has dual vga or dual dvi connection?

You can try dual display, im not sure if this card supports dual monitors because nvidia online specs does not show full specs on 7300se series. \

Good Luck!

Nov 24, 2010 | Computers & Internet

1 Answer

My cursor use to move from my primary monitor to my secondary monitor in the direction that my monitors are positioned on my desk. Now i need to move my cursor in the opposite direction to my secondary...


easy enough, go to display properties, where the icons of both monitors are displayed, and drag the monitor on the right to the left of the other monitor, Viola! fixed

May 17, 2010 | Computers & Internet

1 Answer

Image not being displayed through projector


make sure the resolution matches. the projector uses 640x480.

May 27, 2009 | SharpVision XV-S96U Multimedia Projector

3 Answers

Dual monitor


open up the Nvidia control panel and identify monitors. Then run the multiple display wizard that should help you get both monitors working.
or
Move application window to the monitor you want it to be displayed on, close he application and reopen it.
hope this was somewhat helpful. Good luck!!

Mar 30, 2008 | XFX VGA |GF 6800GT 256MB PVT45GUDF3...

1 Answer

Spanning my monitor


You cant use 2 monitors as just 1. You can do dual monitors, or mirrored monitors.

You may be interested in a FREE product called multimon. It will make a task bar on your second monitor, and add a nice feature near the "X" close buttons to move your applications from 1 monitor to the other.

Oct 10, 2007 | Computers & Internet

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