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Dual monitor problems- second monitor refresh times dreadful

Q: Dual monitor problems- second monitor refresh times dreadful

About 6 months ago i invested in a second video card to use with an old monitor and a new PC. After much trial and error i eventually got it all working.

A couple of days ago i re-installed windows however and therefore all my settings have been reset and am now havein problems, and if i remember rightly the same ones as before. But for the life of me i cant figure out how to solve them this time round. So any help would be appreciated.

Spec -

2x plug and play monitor (almost sure it has nothing to do with these so wont add details)

1x Nvidia Geforce FX 5200 (AGP) with fully updated drivers (from manufacturers website) (the monitor off this video card works fine)

1x ATI Radeon 7000 (PCI) fully updated drivers (without catylist command centre however due to some installation problems. I had these before when both monitors worked fine..just the drivers) - Problematic monitor

Bios - Dell Computer Corporation A12 (newly updated) (I heard somewhere that this may have an effect).

The Problem-
On my second monitor (Radeon 7000 (PCI) whenever i try to move a frame, scroll in IE etc the refresh rate is appaling. Entire lines get moved at a time.
The only time the refersh rate does not slow is when moving the mouse and scrolling through files in c drive as far as i can tell. If i switch my primary monitor to this one and stop the monitor 'extension' it still flickers. Ive checked my monitors by changing which card they use and as expected, the monitors were not the problem as the same problem just happend on the opposite.

Any help would be great as music editing, wave sampling/sequencing etc etc is so much smoother and organised with this set-up..and the thought of going back, ouch.


Preferred Solution: Dual monitor problems- second monitor refresh times dreadful

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)

A: Dual monitor problems- second monitor refresh times dreadful

Well, could be bad drivers... nvidia and ATI hate eachother, so I dunno why you got cards like that, could be a driver conflict from un-updated windows files, that is to say, uninstall drivers, update everything on windows, re-install newest drivers.

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I want to connect a second monitor to my tablet PC. I succeeded once when I connected an analogue monitor (Samsung [email protected]). Now I want to connect a digital monitor (Samsung [email protected]) and I am having serious problems.

Typically both screens go black when I connect the VGA cable. The PC has dvi output but I can't find a cable since the connector on the tablet side is non standard.

I believe the root of the problem is that the monitor refresh rate is set to 85Hz in Windows7 and Windows7 does not allow me to set it to 60Hz.

My question is how I can change the refresh rate of the monitor?

Please look at the next 2 screenshots.

A:Dual monitor: how to change the refresh rate?

Try turning the tablet completely off, not sleep/suspend, then back on.

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Hello to the community.

My dual monitor setup consists of two identical ati video cards NOT crossfired.
Naturally one video card driver from ati drives both of them.
One LCD monitor is connected to one card via hdmi (actually is display port from ati card to hdmi to monitor) and a LCD HDTV is connected to the other card via hdmi as well.
My windows 7 ultimate 64bit desktop is being extended over both screens which both work on 1920x1080 @ 60Hz resolution.
Being a movie fan I am into blurays and prefer to enjoy them at 24p mode. In order to do that the signal going to the HDTV has to be 24Hz.
The issue is that whenever I wish to change the refresh rate on my HDTV (either manually or automatically by the media player) there is a flickering on both screens (for a mere second or two) which I have discovered that it creates a bit of juddering on video playback at my media player everafter. I am guessing this is caused from running a dual monitor setup with the same video driver but I would appreciate your input.
Moreover; I am thinking about buying a new (better) video card.

So the questions are:

1) Is it possible to have two really independent monitors on windows 7?
2) If I buy a NVIDA card could it be paired with one of my existing ATIs? I am thinking that if it is a driver issue maybe when each driver runs a different monitor there won't be an issue?

Thanks is advance.

A:Changing refresh rate on dual monitor setup.

In answer to question # 2, I can't imagine a scenario where an Nvidia card would work side by side with an ATI card. The drivers both access the same resources in the machine. There's bound to be a conflict.

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I have HP Desktop Tower Pavilion with windows 10, I had two HP S2031 monitors in dual mode, worked fine. One of them died, I got a good deal on a larger HP 27er monitor.  I hooked it up, they were both working fine ... it was using a default monitor
setting ... and then yesterday the computer downloaded some updates, and in doing so, it downloaded the driver for the HP 27er and installed.  The next thing that happens is the older HP S2031 starts to go dark ... like it is going into sleep mode, and
then it is totally black.  On reboot, it starts up with both monitors working, but within seconds of reboot the HP S2031 goes black again. The HP S2031's buttons do nothing, other than the power button, which turns it off and on, but that is it.  
I have done all troubleshooting, I did not even have them set up to sleep, all settings are at NEVER.  In coming here, I have done all the fixes I can find for similar  that are posted for similar issues, the Windows Key + W... nothing. 
The create new power plan ... nothing.  the device manger>display adapters>disable then enable ... nothing.  and lastly Start>Control Panel>System>Device Manager>display adapter>driver tap>update ... still nothing.  HOW
DO I GET THE HP S2031 MONITOR TO NOT BE IN SLEEP AND HAVE BLACK SCREEN.  I can not figure this out and am not finding any fix.

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I had a two monitor setup Samsung 2333SW(DVI) + Philips 19B(VGA) running without any problems. I have now replaced the old Phillips with a Samsung P2770H, connecting the P2770 to DVI and switching the 2333SW to VGA(Analogue).

Updated the drivers for both (rebooted) and when I look in Device Manager under Monitors it shows Samsung P2770 and Samsung 2333SW.

Problem is when I right click on the desktop and go to Screen Resolution it shows the two monitors as "Samsung Syncmaster" being the P2770 and "Phillips" being the S2333 and because the Phillips was a 4:3 monitor it only gives me crap resolutions for the 2333SW. (1280 and below)

My question is how do I remove the Phillips monitor from Windows 7 and have it pick up the Samsung 2333SW? I find it very odd seeign as Device manager shows the two samsung monitors and no Phillip monitor.

Much appreciate your help/advice.


System: Windows 7 Home Premium 32bit, Asus P7P55D-E Intel P55 (Socket 1156) DDR3, Intel Core i5 650 3.2GHz, Corsair 4GB DDR3 1600MHz, MSI Nvidia GeForce 9500 1GB, Monitors: Samsung P2770H & Samsung 2333SW

A:Dual Monitor problems - replacing 2nd Monitor

Adriaan, welcome to the forums.

I would start with setting Device Manager to show hidden and non-present devices,

Device Manager : Hidden Devices

Then once that is done open Device Manager and under Monitors, delete any that are grayed out as well as the mis-named one (if it shows as such). Then reboot and let Windows detect and install the driver for it. that should get them detected properly.

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19" LCD Monitor jittery problems

I got a new Benq FP91G+ 19" LCD monitor today, and after i installed the driver and restarted the computer, the monitor started acting odd. I have a Radeon 9600 video card w/ both a DVI and D-Sub output.

The monitor is acting weird in that when i drag windows, say an open folder window in explorer, it does not drag smooth, its choppy and looks bad. Also i have all menus using the fade effect and it takes over a second for the menus to display when using this. I wouldnt say its a refresh problem, but i have no idea how to describe the problem i have. I've tried both DVI and D-Sub connections and both look the same.

Could it be a problem with my video card settings?

A:19" LCD Monitor refresh problems

Try re-installing your video card drivers.

Choppy window movement and choppy scrolling (in programs like Word and Internet Explorer) usually happen to me when Windows is using its own basic video drivers instead of the ones provided by the video card manufacturer.

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I am using a 22" screen for my primary screen and the laptop lid open for a secondary screen. The main screens resolution is 1680x1050, I can set it to anything I want and it's always using the full screen. The laptop screen on the other hand will only use the full screen if it's at 1400x1050 resolution (max for that screen, IBM Thinkpad T43). With the large 22" screen I have no trouble reading the screen at high resolutions, the screen is huge, with the little 14" screen though I have to strain to read the screen at 1400x1050.

The problem is when I set the laptop screen to anything lower than 1400x1050, it uses less of the screen. Preferrably I want it at 1280x1024 or 1024x768 (I dont know which I want yet as I can't see the freaking screen at that resolution). At 1280x1024 for instance the useable screen is just a box in the middle, so the "1280x1024" is still barely readable for me cause it's shrunk from full screen, plus it's just annoying only using a portion of the screen.

I have played with the ATI Control Center, the Thinkpad display settings and windows display settings and just cannot get this thing to go full screen at lower resolutions when docked and using the external monitor.

Anyway to resolve this?

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PlayStation? 3D Display with SimulView? Technology | PS3? Accessories -PlayStation?

I have this monitor, but when i connect it to my pc i only get 60hz as the highest option. I figured at least 120hz would be available.

A:Change monitor refresh rate using 240hz monitor

Sony hating Microsoft? Just kidding. Your video card may only support up to 60hz.

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Hi All, Can I connect two monitors to an Acer Aspire X desktop? I know they have one VGA and one HDMI, so can they have dual displays? Thanks.

A:dual monitor support - Acer Aspire X Dual Monitor

Specifically what desktop are you asking about?  Do you have a part number?

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I'm using a T430s and a mini dock plus series 3. This is the dock with the dual DVI, dual DisplayPort, 1x VGA. I do not use the laptop's built-in screen; just the 2 external monitors. Intel HD4000 graphic chip and Nvidia Optimus/ I previously had 2 20" monitors with a 1680x1050 resolution using DVI-to-DVI. They both worked fine. I upgraded to 2 24" monitors with a 1920x1200 resolution. The laptop is not recognizing the second monitor. I have tried:dual display port (dock side) to mini display port (monitor side): only 1 monitor recognizeddual dvi (dock side) to HDMI (monitor side): only 1 monitor recognizedI ruled out monitor and cable problems by swapping...each by itself works fine. Looking up specs, I believe this resolution should be supported by DP or DVI. Can anybody confirm that this is a supported config? Any ideas what is wrong? UPDATE - I did try 1 DP/mDP and 1 DVI/HDMI: this does work. However, its not an ideal solution because it would interfere with the monitors ports which I want to use for a second PC. UPDATE 2 - OK, now I am beyond aggrivated. I also have a support ticket w/ Lenovo where they suggested switching to Integrated Graphics only in the BIOS. I tried that, no luck. After changing that setting back, i tried to get my 1 DP / 1 DVI working, but now it would not recognize dual monitors. ??? After some testing, I'm finding that the -only- setup that works is the following: Dock DVI port 1 to Moni... Read more

A:Second monitor not detected: T430s with Mini Dock Plus Series 3 dual external monitor

Fixed; was a driver issue. Problem seems exclusive to a Dell u2415 on DP port 1 only of the dock or to the laptop's DP port (at least for the couple monitors I tried). It's possible it could affect other monitors. My starting point: / (Nvidia /  Intel) The latest driver from Lenovo is / I'm not sure how i have a slightly newer Intel, but that's what it was. I couldn't install the Lenovo driver. I also couldn't install a newer driver from Intel ( In both cases Windows or the Intel installer stopped me saying the mfr provided the drivers and that the installed version was up to date. I worked around by first rolling back the Intel driver. The manual (.zip) install of the latest intel driver worked. This immediately fixed the Dell u2415 on DP port 1 and laptop's built-in DP port.

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I recently got a monitor from one of my friends saying that it was broken. Its a Dell 19in LCD. I have my main monitor a 22in Samsung wide screen So i just plugged it into the second DVI slot on my graphics Card. When i went into the display config i set up dual monitors just to see if it was working. The dell monitor would blink up then quit on me.

When i was messing with the Display settings I made the Dell. Not my Samsung the Default Monitor. I unpluged the broken Dell and restarted. Now my computer regognizes the Samsung as the second monitor and it just shuts it off and recognizes nothing as the main.

I managed to get it into safe mode and it recognized the samsung but every time i try go back to Normal Start the screen is blank.

How can i get it to recognize the Samsung as my main?

A:Computer is stuck in dual monitor mode and will not display my Samsung monitor

You might try reinstalling your cards video drivers

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Tech Support Guy System Info Utility version
OS Version: Microsoft Windows 10 Enterprise, 64 bit
Processor: Intel(R) Core(TM) i5-4670 CPU @ 3.40GHz, Intel64 Family 6 Model 60 Stepping 3
Processor Count: 4
RAM: 8129 Mb
Graphics Card: AMD Radeon R9 200 Series, -1 Mb
Hard Drives: C: 232 GB (21 GB Free); D: 931 GB (395 GB Free); E: 698 GB (152 GB Free);
Antivirus: Windows Defender, Disabled (360 Security)

First post, hope I am not necro'ing anyone's thread.

The Issue: Dual monitors, secondary stays in D-VID Power Saving Mode and goes to black and flashes the standby light.

Monitor Model: LG 24'' IPS LED D2343 (CINEMA 3D)

Was working perfectly less than 24 hours ago, upon boot up this issue arose, attempted fixes to follow:

Basic Fixes Attempted:

1. Classic restart.
2. Removed screen connections, power and DVI.
3. Swapped Ports on the actual GPU between main and secondary monitors, main monitor fires up no problem.
4. Used the Monitor and cables with a different PC- The Monitor worked perfectly.
5. Reinstalled GPU Drivers.
6. Cleaned out the tower, dust etc.
7. Checked and re-checked as many settings as possible on W10, everything from Power settings to Display and Device management, this includes trying hot keys- like those used to project screens etc.
8. Checked windows Update- fully updated.
9 No dodgy software detected or any software installed lately.

Intermediate Fixes Attempted:

1. Removed and ... Read more

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Running dual monitors in Win 10 and when going through the Color calibration steps on monitor #2 (Control panel / Display / Calibrate color) the settings stick as long as the 2nd monitor is active.

If I switch to single display (Windows Key + P / PC Screen only) then the 2nd monitor loses its color calibration. Also anytime I reboot my PC (Even if I have both monitors active) the 2nd monitor loses my calibration.

The 2nd monitor has a fairly strong bias for the color Green so I can always tell right away.

I'm probably overlooking something and was hoping someone might of dealt with this before

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I've been running a multi-monitor setup for a while now, with an ASUS VG248QE 144Hz monitor as my main, and one or more spare monitors as secondary displays. I've set the ASUS monitor to 144Hz without issue in the past, while the other monitors stay at 60Hz.

The other night, Windows wanted to update. I figured it was the usual patch session, so I let it do its thing. However, after restarting my computer, I noticed that my ASUS monitor would only operate at 144Hz if it was the only monitor plugged into the system. When I try to set it higher in the Nvidia control panel, it just reverts back to 60Hz after applying changes. I updated my graphics drivers (though I was only one version behind) and even sought a special ASUS driver for the monitor to resolve the issue, but nothing has helped.

Did Windows recently add a forced refresh rate sync between all monitors recently? If so, that really sucks because I only own one 144Hz monitor.

A:Dual monitor setup locks 144Hz monitor at 60Hz

Are you sure the other monitors are independent (dual or multiple mode) rather than cloning the main monitor? If they clone the main monitor, then this explains the 60Hz refresh rate, as all settings (resolution, color depth, refresh rate) should be common for all monitors and the others can only do 60Hz.

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I recently bought a DVI cable to plug my external LG monitor to my laptop to run nVidia's DualView (stretch format) across the two monitors. I'm using a beta driver (169.04 from laptopvideo2go.com), and when I enter nVidia control panel and go into the setup additional monitors tab, it only lets me choose "choose only ONE monitor". So I did that just to test that my monitor was plugged in right, and it worked. So I KNOW that my monitor is working and is being recognized by Vista. But when going into display settings byt right clicking on my desktop, it also only recognizes 1 monitor. Is it my beta display driver messing my Vista up? Or what could it be?
Any help would be greatly appreciated

Thank you

A:Solved: Dual monitor in Vista not working. Only showing 1 monitor.

for drivers to work properly in vista i'm pretty sure you have to have signed drivers, since it's beta are you sure they are signed?

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I am having troubles getting my dual monitors back.
Initially had a GeForce 8400GS 512MB PCI video card and was using the on board video (Biostar G41 M7 MB) for dual VGA monitor setup.

I've installed a Radeon HD 6670 1GB PCI-E video card with monitor one setup via DVI to VGA adapter on output one and 2nd monitor on VGA onboard video.
I cannot get the second monitor to detect in any configuration. Tried looking in BIOS of MB, using 2nd DVI (w/ vga adapter) on Radeon card.

Am at a loss and I hope I have provided enough information for some assistance.

Much appreciated


A:Radeon HD 6670 Dual Monitor setup not detecting 2nd monitor

Quote: Originally Posted by Weeg

I am having troubles getting my dual monitors back.
Initially had a GeForce 8400GS 512MB PCI video card and was using the on board video (Biostar G41 M7 MB) for dual VGA monitor setup.

I've installed a Radeon HD 6670 1GB PCI-E video card with monitor one setup via DVI to VGA adapter on output one and 2nd monitor on VGA onboard video.
I cannot get the second monitor to detect in any configuration. Tried looking in BIOS of MB, using 2nd DVI (w/ vga adapter) on Radeon card.

I don't understand why you are using a combination of DVI (to VGA) out of your HD6670 to one monitor, and also using the VGA out of your motherboard to the other monitor.

Am I interpreting what you've done correctly? You are using just the DVI output from your HD6670 through a DVI-to-VGA adapter and on to your first monitor, and also using the VGA output from the onboard graphics of the motherboard to feed the second monitor? If so, this is very wrong.

Your new HD6670 has TWO video outputs of its own: one is DVI, and the other is VGA. You should connect your second analog monitor to the VGA output of the HD6670, not to the onboard graphics VGA output.

Also, if you can disable the onboard graphics in the BIOS that's definitely what you should do when you install an external video card as you've done. At the very least you should give priority to the new PCIe video over PCI (which was your old GeForce card, and probably o... Read more

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Hello I basically need conformation that I'll need to buy a new monitor in order to have a dual monitor set up with my current system. I'm not super tech savvy so if you need any other info please let me know.

I have a Radeon HD 6670 with 3 ports, an HMID, VGA (which is my monitors type) and DVI. Each port has a stamp next to it that indicates what port type it is/supports (the VGA has a CRI stamp next to it though). My main VGA monitor works fine with the VGA/CRI port, but my second I have to use a VGA to DVI adapter and it's not working.

I've gone through a lot of forums, and found some conflicting information. So I really want to know is it possible to use a converter/adapter or will I need to just go out and buy a new monitor that has a DVI hook up?

I hope I don't need a new monitor, I'm on a very tight budget. (la sigh)

A:Radeon HD 6670 Dual Monitor setup not detecting 2nd monitor

I would try one of these before giving up on the monitor:

Rosewill 10ft. DVI-A (24+5) Male to HD15 VGA Male Analog Video Cable w/ Ferrites Cores, Model RCW-900 - Newegg.com

Forget adapters, you might not a have a compatible one, the DVI connector has many variants.

Look at that cable end and make sure it would fit on your video card's female DVI connector (it should), it's DVI-A (analog only) to VGA which is analog only....

More info:



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Whenever my computer recovers from sleep mode, or when the screensaver comes on and I wake it up, I find that all my apps are now on my main monitor.

Example: Google Chrome and Skype on Monitor 1.
Microsoft Word and MSI Afterburner on Monitor 2.

-computer sleeps/ screen saver turns on-
-I wake the computer up-

Google Chrome, Skype, Microsoft Word, and MSI Afterburner are on Monitor 1.
Nothing on Monitor 2.

Is it possible to fix this?

OS: Windows 7 Home Premium
Using DisplayFusion Pro v5.0.1 to extend my taskbar to the second monitor.

GPU: r9 290
CPU: i5 4670k @ 4.2 Ghz
Mobo: ASUS z87 sabertooth TUF series
PSU: Corsair TX-CMPSU 650W

A:After dual monitor sleep recovery, all apps shift to one monitor

I've had dual monitors for years now and have never had this problem. But I also have no screen saver.

If you put your system to sleep why would you want a screen saver? All that does is keep the system active and running - which is the opposite of what sleep does.

Remove the scree saver and see what happens.

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I had my laptop hooked up to my tv an dead using it as dual monitors. I was listing to Pandora and surfing steam which I'be Done hundreds of times. Then my computer froze up an did turned it off for a bit. I turned it back on and I got a Windows error recovery. I ran start up repair but when it got to the Windows lock screen the login part was completely gone.

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I have an ATI Radeon 4670 card. I have not had trouble getting it to "Dual Display" in the past. Usually I wanted to do an extended display. I am now trying to get it set up with my HDTV with HDMI. I have added the Realtech drivers and HDMI adapter to the video card and have been able to get HDMI and digital sound to the HDTV, I am trying to get the two displayed as clones.

The problem I am having is after getting Catalyst to display the HDTV, I have lost the image on the monitor. In the process of trying to get it back to both displays I have accidently made the HDTV an extension of the monitor. Which is really a cluster as I can not get to the control panel to make any changes. All I have is the extension showing on the big TV but none of the controls. I tried rebooting in safe mode but was unable to access the catalyst control center as it did not boot in safe mode. The big plus is that in safe mode both screens are visible, but I can not undo the Catalyst settings. I am now running a system restore which will take me back to tomorrow settings, which is not ideal but better than not being able to access anything outside of safe mode.

How do I get the TV and monitor to display at the same time?

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Hi, i just moved in to college and set up my computer, but due to limited space didn't bring my second monitor. Now my aim, and ventrilo windows are still on the other monitor but no way to get them to the current monitor for use. Any help?

A:Dual monitor to single monior, windows stuck on other monitor

Go into the properties of your graphics card and select Single Display.

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Hi all, new to the forum. Running Windows 8.1, I just connected a second monitor. I can see both screens side by side and each do exactly the same thing. I tried to extend ( Windows Key + P ) but nothing happens. In fact nothing happens when you press any of the choices - second screen only, PC only etc ... When I go to screen resolution, I see that only one monitor is detected and when I try to identify and detect - again, nothing happens. What needs to happened here ? Could it be a driver issue ? Or maybe the splitter that I'm using ? I'm not so computer savvy so I am unsure what to do and all my research to try to resolve the issue thus far has not really helped. Thanks in advance !

A:Dual Monitor problems

You cannot do it that way. The same input split to 2 monitors will give you the same on each monitor.

You need two separate leads, one to each Monitor from two different Video Outputs from your PC/Graphics Card.

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I just set up dual lcds on a dual dvi card (6600GT)

a few problems:

1) when I have a full screen game, I can't seem to move my mouse out of the first monitor. any way to fix this?

2) only my primary monitor seems to play some things fine. when I have video playing in the secondary monitor the CPU use goes up and it drops frames

is this a hardware or a software problem, most likely? any suggestions to fix it?

A:dual monitor problems

Most games don't support dual monitor. As for the CPU usage, It would depend on what you've got going on on the first monitor. If you're running another powerful app, that might be where your CPU usage is coming from.

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Hi, guys.

I just got back from BestBuy with a DVI to VGA adapter so I can utilize the DVI port on my NVidia GeForce FX 5200 and have two monitors, but it hasn't been going so well so far. First, I try doing the obvious - plug in the adapter, plug in the VGA cable like I would on any other monitor, and then set up my dual monitors.

After I do this, my 1680 x 1024 LCD plugged into the VGA port displays the image just as it always has, but the other monitor is flashing "CHECK VIDEO CABLE"

After some Googling, I decide to try to shut it down, plug it all in, and then restart.

Success! Well, for about 20 seconds... I see a cloned display in the second monitor as it goes past the BIOS loading, even up to the pre - startup loading bar thingy. After that, however, it goes right back to flashing.

When I log in, I get a new hardware found balloon. I click on it, and I get "default monitor" found. I let it install the drivers, but still no paydirt: the monitor is still telling me it can't find the signal.

I know a few things for sure:

1. The DVI port is fine (I saw an image for a while didn't I?)
2. The adapter is not bad (Same as above)
3. The cable is fine (Same as above)

I'm guessing it is a problem with drivers...? Any help would be appreciated

A:Dual Monitor Problems...

Ok, I got the monitors acting like they should, but a new problem arises...

My second monitors colors are seriously messed up.

I will try to get some pictures, but everything seems purple tinted, as if it needs to be degaussed, which it doesn't need to be.

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Hi there,

I'm having problems linking up 2 of my monitors.(Samsung SyncMaster 913n 19") I've got a Radeon9700pro graphics card with VGA and DVI outputs. The monitor on the left in the screenshot is running off the normal vga connection. The problem is the monitor on the right which just seems to display everything with a "pee" coloured yellow all over. Everything else works fine, it works as an extended desktop through all the windows settings.
I've tried swapping the monitors and plugs to make sure it wasn't an obvious hardware fault but everything seems to be ok. I've re-installed all drivers etc and made sure refresh rates and other settings are acceptable! If anyone can help, thanks


A:Dual Monitor problems

So if you put the other monitor on the DVI port, you also get the yellow coloration ? Have you tried using a single monitor on the DVI port ? If they still have that yellow problem it could be a problem with the card's DVI port.

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I recently bought a PCI graphics card and an LCD monitor for my computer. They both work great, and I figured it would be cool to hook up my old CRT monitor as well. Combine this with a "The Matrix" screen saver, and you've got a cooler computer than anyone else on the block. Here's the setup I'm aiming at:

LCD --> Connected to --> PCI card (primary monitor, used for gaming)
CRT --> Connected to --> Motherboard graphics port (secondary monitor, for the heck of it)

I shut off my computer, attached the CRT to the Motherboard, and powered back up. When I logged in, the CRT monitor stayed black, but the power light was green, signifying that it was connected. I figured that Windows XP Pro didn't automatically extend my desktop, so I went into display properties and clicked the Settings tab... nothing. Normally, it shows two gray blocks representing the two monitors, but there was only the default Settings screen. I tried turning my computer off, plugging the LCD monitor into the motherboard port and doing it that way, but the LCD did the same thing as the CRT; had a green light, but showed a black screen. I tried plugging the CRT into the PCI slot, and it worked. I also checked the device manager, and it only showed one monitor attached, and interestingly the only thing under Display Adapters was my PCI card.

Apparently, my monitors are able to recognize the onboard graphics port on my motherboard, but the rest of my computer does no... Read more

A:Dual Monitor Problems

Did you disable the onboard video card in BIOS when you first installed the PCI video card?

Have you now re-enabled it?

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Hi everyone,

I have a toshiba laptop, i used to have it hooked up with my HDTV so i had 2 monitors counting my laptop desk, but since yesterday morning when i tried to watch a movie my HDTV has a (no signal sign) , I've tried everything to get the image back in to my tv but it is in vane,my laptops desk its working perfect,

My operating system is windows xp
My graphic card is intel(R)915GM

Can anyone please help me with this?i will appreciatte it

A:Dual monitor problems

have you tried setting the monitor for the hdTV the default monitor?

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I have an Nvidia video card i think it is the 6800 but not certain. It has a DVI and VGA output. I have 1 17" monitor which is my main one. I wanted to set another one up for elsewhere. It is a 15" monitor and is LCD (like the other one, they are in fact the smae make).
However, when i plug the 15" one in, I get a picture but there is a white box with red writing moving around the screen saying "Input not supported".
I am confused as to why this is happening when the picture on the screen is there. It is not perfectly focus (although close) so I guess it is something to do with a clash of resolutions.
Is there anything I could do about his or a resolution I could set that would work with both?
Thank you,
Jonathan Aspital

A:Dual monitor problems

You need to configure (under display options on the PC) the refresh rate and resolution to match the rate the LCD has. For a 15" it will be 1024 x 768 at 60 Hz refresh in most cases.

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I was running win7 beta on this exact same computer setup back in the beta days. Everything worked perfectly then. Once I upgraded to my x64 retail win7 copy, my 2nd monitor went wonky on me. I know the monitor is not at fault, I have tested both extensively, both monitors work just fine on multiple computers for extended periods of time when running solo. However, when running dual setup on this box, my viewsonic goes all blinky on me. Its kind of hard to describe. Its not flickering per-say, its more like blinking or flashing. I can get the monitor to stop for a bit by turning it on and off again, but it eventually goes blinky again. To restate: it is not the monitor. If i unhook the other monitor and leave everything else the same, it is magically fixed. I have latest drivers for every possible piece of hardware in and out of my box that i can find. BIOS's have been flashed, etc. I have tested the video card as well, it doesn't seem to have this issues with any other setup. I am thoroughly stumped. I've even tested the RAM. Everything checks out. =P

Setup is:
ASUS P5N-T Deluxe
Core2Duo E6750
EVGA Nvidia GeForce 9600GT 512MB
Samsung SyncMaster 204B Monitor (set as primary display)
ViewSonic VP2030B (set as secondary display)
running Windows 7 Pro x64

If anyone has had a similar issue and/or has a fix for this, please let me know. I have searched through these forums (and others) and have not yet found a satisfactory solution, however, I may have missed one... ... Read more

A:Dual Monitor Problems

Did the dual monitor set up ever work on 7 RTM (retail copy)?

How are the monitors connected? VGA, DVI, or both?

Swap the monitors connections on the card, Does the problem happen on the second monitor? Tells me if problem is hardware related.

Have you rolled back, or tried older drivers? I had an AiO HP which started flickering with the newest drivers, installed old (original) drivers and issue went away. It was NVidia graphics drivers...

Below are the drivers which fixed MY problem:

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Hi there,

So the problem as stated in the title is that i can't get both monitors to work.


Graphic Card: ATI HD 5850
MB: ASUS m4a79t deluxe
Monitor 1: lg flatron w2253TQ
Monitor 2: panasonic tx-l19x10e


So my system as been runing for 4.5 years without any major issues (Including both monitors working fine).
One day suddenly the PC didn't POST at all and i went full yolo on understanding the root of the problem (without success). I tried almost everthing during 3 days (testing each hardware piece, checking the connections, reseted the bios, etc...) and somehow when i was about to take the pc to someone with hardware pieces to test it i took a last try to turn it on and...boom the pc cameback to life!!! Don't know how i did it but i did and now the pc is working for more than 1 week without any issues.

The Problem:

Well before this problem i had dual monitor without problems, after the problem the 2nd monitor doesn't give image at all. The second monitor is connected through a Vga to Dvi adpater and i suspected that somehow the cable was the problem because the pc detects the monitor but doesnt display any image on the 2nd monitor (even if i take a PRTSCN both desktops show up in extended mode) so i got my hands on a new VGA cable and... that wasnt the issue... then i tried a hdmi-hdmi cable and nothing... i tried the monitor on a laptop borrowed to a friend and nothing... both dvi ports work fine since monitor 1 works on both slots so i... Read more

A:Dual monitor Problems

If the monitor didn't work on another computer, it has likely died. The TV portion of the monitor uses a different pathway to get its signal (cable => tuner => screen), so that might be why it's working. The monitor may have lost its "Monitor in" input and that's why it isn't working.

You'll know for sure when you try another monitor on it in a couple of days. Does the 2nd monitor work on any output from the video card with monitor 1 disconnected?

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Help! I am trying to get a Dell Inspiron 8600 to run PowerPoint in dual monitor mode. It has a NVIDIA GeForce FX Go5650 video card. I can get it set up in display properties so that I can see the extended desktop, but I want to be able to display the PowerPoint presentation on the extended monitor; it only shows up on the laptop monitor. When I got the computer to use for this purpose, they told me there might be a problem and they had to have someone go into DOS to get it to work right. Anybody got any ideas??? Thanks.

A:Dual Monitor Problems

Got it to work! It was a PowerPoint problem. Too many switches to keep track of!

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Hello all!

I have a big problem in connection with dual monitors. The other day I found a "Samsung SyncMaster 152t" around the house. I decided to connect it to my comp next to the already used "Samsung SyncMaster 913n". I tested both alone, and both worked perfectly. Then I bought an adapter as my Video Card ( ATI Radeon HD4600) has only 1 DVI and 2 displayPort outputs. The 913n was already on the DVI so I tried to connect the 152t through its VGA cable with a VGA-DVI port and then this newly-bought DVI-dP and then joined it into the port on the Video Card. And then I was praying..... but nothing happened.

The monitors worked perfectly when connected to the original DVI port on my Video Card. However, the system can't detect it at the "Screen Resolution" menu. Both adapters are brand new so I guess it is something with the Video Card or somekind of software problems.

The comp also can't recognise the monitor connected via the adapters, but the monitor knows it is connected. When it isn't, it displays "No Signal", when I plug in the cable, its light simly starts blinking green.

My question is that is my Video Card unable to handle 2 monitors or I lack of some softwares which enable me to dual-monitor.
I really appreciate you spent your time on reading

Waiting for your advices and solutions.
Little Dizzy

A:Dual monitor problems

You have too many adapters and they are not the right ones.
You need a display port to VGA adaptor.
You can't use the ones you bought since display port to dvi is only digital, so the dvi to VGA adaptor won't work.

This one is for mini display port to VGA

And this one is for display port to VGA ,

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Im having trouble setting up dual monitors. My computer has an Intel 82865G Graphics controller installed with it. When I add in a Nvidia graphics card, it defualts to it, and cant even find the intel card. Any suggestions?


A:Problems with Dual Monitor Set Up

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I have done a clean install of win 2000 [had 98 se] now I no longer have the right tab in the display, advanced tab, to control ;and set my 2 [lcd] monitors. The 1 -2 monitor control screen. The win 2000 book shows it should be there, just like before; NOT ! Have tried every driver available for the ati agp card. Excalibur brand [radeon 7000] Non Windows certified, Is there a file or some thing to open to get my duI al/multiple monitors to work. . Didn't find anything in the windows data base. Some-body said to try another {good brand, win certified] agp card. Have found a Windows file called "Multimon.exe" in up-date, don't know what/if I should try it?:confused:



Hello all,

I just bought an Nvida Quadro2 Pro dual video card off ebay to use at work to set up a dual monitor system and after installation I cannot see the 2 monitor in the display settings. I have uninstalled everything and reinstalled. Gotten new drivers from Nvidia and still cannot see both monitors. They both turn on and I see the same image on both.

Any suggestions?


A:Dual Monitor set up problems

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I recently purchased a Nvidea geforce 6200 (manufactured by Asus) and was assured by Nvidea that it will support two monitors. I also bought two Dell 1707 FP monitors and connected one to the DVI port and one to the VGA port on the card. Things work well until I begin to use a microsoft office application and only if I am editing text; periodically while I am using the application, the monitor screen from the DVI will go black for several seconds. I can detect no pattern to this and can't get nvidea to give me any useful solution. Updated drivers aren't helping my cause and upgrading to 1.5 GB memory didn't help either. Is there a way to fix this or do I have to call it a lost cause and spring for a new card?

A:Dual Monitor Problems

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 Have a eliteone 800 g2 with additional hp E240c monitor.Want a setup with dual monitor, but no detection of the E240c.Have followed the installation guidelines from the E240c and connected with the displayport cable on both machines but no additional monitor detected.  Graphics intel hd graphics 530 has factory special driver. Looked if driver should be updated, but no driver was found to update this config specific driver. Who can help me out why it doesn't work. Posted to support team but no respons after 3 days , so hope this forum can help me out.

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Hi guys! I've been coming across an issue lately and wanted to get some insight as to what exactly is going on. I'm guessing it's the video card, and all my drivers for it are up to date, but I want to make sure.

The first time this happened was on 5/31/2014(see attached screenshot). It's happened a total of 4 times in the past two weeks and always at the same instance. I have a single monitor plugged into my video card(HD 6850) and also have my TV plugged in as well for when I want to watch movies and such. Typically I am running my PC in dual monitor mode(duplicate screens) even when the TV is off but when I turn to TV on these past 4 times, the screen flashes black as normal, but instead of both screens appearing again in tandem the TV is blank and my pc monitor now has a GSOD. I've attached another screenshot as well from 6/4/2014.

It does not happen every time but as I noted it's done this 4 times. As instructed I've also attached my zip file with all the info from DM Log Collector. Let me know if I'm missing anything else that you need. My pc specs are in my profile as well.

A:BSOD when switching from single monitor to dual(monitor + TV)


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Have a large screen tv on wall connected with HDMI to computer. Have a Samsung monitor on my desktop. Cannot make the desktop my primary monitor no matter what I do. (although have had this working before). We had a break-in and monitor was stolen. So replaced with new but cannot make it primary.....always defaults to samsung tv on wall. I have tried all normal solutions.... unplugged all....began with desktop monitor....added tv, etc. Have spent way too many hours and am sure answer is simple. HELP PLEASE!

A:wrong primary monitor in dual monitor setup

Right click on your desktop, select Screen Resolution, then click on the screen you want to make primary. Select Multiple Displays, and it should be there!

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I have a dual monitor setup, where the laptop is hooked to a 2nd monitor (TV) thru an HDMI . I primarily use the 2nd monitor. Can I blank screen the 1st (laptop screen) monitor, yet continue to use the 2nd monitor with the lid open for access to the keyboard?(I noticed with changed settings in Win7 control panel, I can close the lid without cutting off [sleep, hibernate or shut-off] the computer and had to reduce the 2nd monitor display to fit the visible screen. But to use the keyboard one has to open the laptop lid, which kicks in the 1st screen)Thank you

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Here is my problem. I have a primary monitor and then I run S-Video out to the TV so I can watch video clips.

With Vista, I had no trouble starting a video clip in media player on the primary screen and then dragging it over to the second monitor (TV) for actual viewing.
However, I tried to do that with Windows 7-it won't let me drag Media Player over to the second monitor. I can drag other applications to the second Window (Word, Browsers), but not any media program. Even tried another media player application.

Not sure what to do-how can I get this to work? I want to be able to watch TV/Movies on my second monitor.


A:Dual Monitor Issue-Can't drag MedPlay to Second Monitor

Actually update. I have a hard time dragging anything to my second display. I never had trouble dragging things to my second monitor before. When I get to the right edge of my main display, the window dragging stops..I can't get it to the second monitor. What am I doing wrong?

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First of all, hello! And thanks for your time!

I am running a dual monitor setup with my TV hooked up via HDMI to my laptop.

Everything was working fine before, I always had the laptop as my main display yet I could play a video or a game fullscreen on the TV.

Since a couple of days, as soon as I put something in fullscreen, it immediately goes on my laptop, regardless if it's open on my TV or my laptop.

I don't remember changing/installing anything that could've changed that...

I checked a bit in the AMD vision software and the Windows control pannel but I can't seem to solve my problem without switching my TV as the main display.

I also made a quick search on google as well as here but the problems were mainly with Flash, which isn't in cause here.

Here are my system specs:

Toshiba Satellite L75D
Windows 7 home premium 64-bit
AMD Radeon 6520G



A:Dual monitor setup - fullscreen goes on wrong monitor

My desktop has my LCD monitor through Display Port and my TV through DVI. What I do is have my multiple monitors set to "Extend these displays" and make the LCD the primary display. Ive included two pictures of what my settings look like, first is with the LCD(1) selected and the second is the TV(2).

I will say that sometimes the program you are using forces the fullscreen to go to the primary screen, I have had this trouble with Everquest a number of years ago. There was a program that you could run with the game that allowed you to put the game window into boxes, different screens and a bunch of other things.

I primarily use my TV for watching movies/tv, Media Player Classic does a great job of being able to open to fullscreen in either monitor, regardless of how the monitors are setup.

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I have just did a clean install of Windows 7 ultimate from XP and I am unable to get my dual monitors to work like they did in XP.

I have a DVI Radeon graphics card plugged into the agp slot, and a Nvidia geforce vga adapter plugged into a pci slot of my dell optiplex 755. When I am in the screen resolution settings the second monitor cannot be detected.

In bios I have 2 options under primary video adapter and they are auto, and onboard card. When set to auto the Nvidia card gets a signal but the Radeon does not. There are no conflicts in the device manager, and all of the drivers are up to date.

When I change the bios option to onboard card the Radeon adapter gets a signal but the other monitor cannot be detected and in device manager there is a yellow exclamation mark next to Standard VGA adapter and a code 10 error that states the device could not be started.

I have powered down, and unplugged every cable, I also tried to use the integrated VGA adapter to the Intel G31/G33/Q33/Q35 Graphics Controller but the computer will not even boot. I get
"System Halted
Attention Unsupported Video Configuration Detected"

I have two monitors, both work fine as standalones but Windows will not detect either as a secondary.

Please help me someone, I am so used to having my helpdesk email open in one monitor and all of my other work in the other monitor.

A:Dual monitor issue, secondary monitor is undetectable


Try updating your card drivers. Go into Device Manager and right-click on your display adapter.

I suspect that the cards are too old, though. We will see.


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Need help with dual monitor setup. First time trying to do it.

2 Problems
Second monitor does turn on, but is only showing native resolution (1024 x 768) but it has the ability to go up to 1280x1024.
I want to to be able to set it to 1280x1024.

Second monitor will not boot up along with computer.
I shut down my PC, the monitor is still plugged in, and it doesn't wake up automatically.
Things I've tried
- Updating drivers, obviously. (Nvidia, etc.)
- Uninstalling default driver of second monitor in Device Manager then rebooting computer, then plugging out and replugging the monitor back in (so it reinstalls) because it doesn't boot up on its own.
- My Power Options is set to "High Performance" so that's not the reason why my 2nd monitor isn't booting up with my PC.
- I have tried plugging in the VGA cord of my second monitor into the mother board but it didn't come up.
General Information
- The second monitor is an HP Compaq LE1711
- The second monitor is plugged into my GPU? via a VGA cord into an HDMI to VGA Pigtail Adapter (company: ATIVA), into an HDMI port.
- The main monitor (1920x1080) is plugged into my GPU?, via a VGA cord into VGA to DVI-I Dual Link Adapter, into a DVI-I port.

Picture of what I'm seeing:

I'm pretty sure I've got some of the terminology wrong (I'm not a computer expert).

Any help is appreciated!



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I'm currently using two 4:3 monitors of my PC, and I'd like to substitute them with one big wide screen monitor. The only thing I'm worry about is that I won't be able to have different "spaces" for my windows that they could expand to (so I could have, for example, my e-mail on the right part, and my browser on the left).

All I've found so far are virtual desktop software, but that's not what I need. I'm looking for something that splits the visible desktop into multiple parts.

Any ideas? I'm using Vista by the way
Appreciate your help

A:Solved: Having Dual monitor behavior in a Single monitor?

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I've searched some forums and while i have found all sorts of dual monitor problems i haven't found this one.

I have a MSI M670 laptop ( with nvidia 6100Go graphics card ) and a Samsung SyncMaster T240HD. I always connected my monitor with a VGA cable on my windows xp and everything worked fine.
After i've installed Windows 7 when i connect the monitor to my laptop automatically the laptop monitor is disabled and the Samsung becomes the primary display.
If i press windows_key+P Computer Only is selected and whatever i select from the list ( duplicate, extend, projector only ) nothing happens and Computer Only is always selected.

In the Nvidia panel under the "Set up multiple displays" option after i connect the Samsung it becomes the only option so i cannot revert to my laptop display whatever i do.
Rigurous Display Detection does not help at all.

Any ideas ?

A:dual monitor problem (primary monitor disappears)

Have you been to multiple displays option in nvidia control panel and selected them both?

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