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Monitor Goes Black in Dual Monitor Configuration

Q: Monitor Goes Black in Dual Monitor Configuration

I have been running a dual monitor setup for several years without issue. I was using a 28" Hanns G 16:10 1920x1200 via HDMI & an ASUS 27" via DVI. They were connected to a Zotac GTX 570 and then later to a Gigabyte GTX 770 4GB graphics card.

About a month ago I substituted a 30 Inch Monoprice 16:10 2560x 1600 monitor connected via DVI for the Asus monitor (both MP & HG still connected to GTX 770). In the last two days, the Monoprice monitor has gone black twice. When this happens, all programs that were visible on the now black monitor combine with the programs on the visible monitor. When I open up the control panel, it only lists the Hanns G (still visible) monitor as detected and the Monoprice (black) monitor has to be re-detected. After clicking on "Detect" the monitor returns to normal. This happened once while gaming (Left 4 Dead 2) and once when I wasn't gaming...can't remember exactly what programs were open at that time.

I updated my graphics driver between the time it first happened and the second time it happened. I also used device manager to see if there was an available monitor driver update available, but windows claims that the most current driver is installed and that the graphics card and both monitors are working properly.

I would really appreciate any assistance that can be offered. The 30 inch monitor wasn't cheap and I am hoping that the monitor is not the issue. I have not yet done any trial and error measures such as reversing the connections on the graphics card or substituting different monitors and/or different cables. I know that doing so might eventually reveal the source of the problem but I was hoping that if someone knows of a fix for this, it would save a lot of time and energy.

The computer specs are:

Intel i7 2700k processor
Corsair Vengeance Memory 8GB 1600 DDR3 Dual Channel
Gigabyte GTX 770 OC Version 4GB DDR5
Samsung EVO 500GB SSD
Western Digital 1TB Caviar Black HDD
Gigabyte Z68-AP-D3 Motherboard
Coolermaster Silent Pro 850W PSU
Monoprice 30" LCD Monitor (DVI)
Hanns G 28" Monitor (HDMI)
Windows 7 64 bit

If you need any additional information please ask & Thank You in advance for your help.


Preferred Solution: Monitor Goes Black in Dual Monitor Configuration

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: Monitor Goes Black in Dual Monitor Configuration

No thoughts or ideas at all folks?

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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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Hi all.

So, I just got a spiffy new monitor from Woot.com (a debranded HP w2338h). Gorgeous, works great when it's all by its lonesome. Not even a dead pixel!

However, when I try to hook it up at the same time as my old HP vs17 (which also works great by itself), it goes black, says "no input signal," and goes to sleep. I'm using a Radeon 4670 HD. Brand new drivers, Hydravision installed. Windows 7 64-bit.

Catalyst detects both the monitors, offering an extended desktop, and when I move my mouse off the side of the vs17, it disappears and takes time to return, indicating that the computer thinks the screen is still on and is moving the mouse all over this expanse of screen real estate.

Also, when I boot up, both monitors show the boot-up screen just fine, up through the Windows logo load.

Tried switching the cables on the video card, no luck.

Any ideas?

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Wasn't sure if this should go in hardware or here seeming as it's about monitors as well as the graphics card, but yea.. move if needed I guess

So.. today I got a new monitor. One of those korean 27" 2560x1440 displays, the QNIX qx2710. I have also an LG 22" old flat panel screen, and a 20" hdtv that's got DVI on it. For years I've used my 22" as my main and my 20" tv as the second screen (extended, not duplicated)

Today is where it got weird, although I THINK I've worked out what is going on, I'd like some people in the know to chime in as my expertise is software, not hardware. The new monitor works beautifully (typing this on it now.. amazingly good considering it was ?200 brand new!), it's one of those panel only single input things that make your GPU do all the work, whereas some don't (from what little I understand of monitor complexities). It appears my 22" is also one of those, or at least I'm guessing so, as it's a single input also and was pretty cheap when I got it years ago. My GPU (hd6850 sapphire toxic edition 1gb) has a bunch of ports on it, two mini display port, plus two DVIs, and a hdmi.

The 27" and the 22" (both single input monitors) will not work together, on ports that work in other configurations, with wires that work in other configurations, etc. Here's what I've tested. Top herein refers to the top DVI port on the GPU, which I assume is the 'main' or w/e, and bottom the other one.

27 (top) + 22 (bo... Read more

A:Dual Monitor Configuration - HD6850

This is your card, eh?

Windows 7 lets you manipulate them in the Screen Resolution settings (right click desktop and select that), just get them all working together, by any port possible.

I suggest you call Sapphire on this for direct support, video cards vary greatly on this and that will get you FIXED IN A JIFFY, otherwise we are just guessing.

Tell them you have 2 monitors + a HDTV and the connector specific limitations of each, then let them walk you through it.

Tell them what you have available now, and perhaps you will avoid buying anything.

SAPPHIRE Toxic 100315TXSR Radeon HD 6850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity - Newegg.com

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I was wondering if it's possible to maintain a dual monitor, extended desktop configuration when moving a relatively large network from XP Professional to 7 Enterprise. As it stands now, after the Win 7 image finishes installing the secondary monitor does not automatically attach leaving the user to have to do so when they log on for the first time. We have seen cases where the second monitor does attach, but the primary monitor has switched. This greatly increases calls to the help desk, so if its possible to have the second monitor automatically attach that would be helpful.

Does anyone have any suggestions on how to set the secondary monitor to attach at first logon essentially maintaining the former XP extended desktop configuration?

Thanks in advance.

A:Maintain Dual Monitor Configuration when mass-upgrading to 7 from XP?

If the hardware is identical, you could configure one system with Windows 7 and set up the software, settings, etc, then sysprep the drive and clone it. You can use an answer file, or you could do a quick registry edit that will prevent sysprep from deleting the drivers.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Sysprep\Settings\sppnp set PersistAllDeviceInstalls to 1.

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On my Dell Inspiron E1705 laptop I recently added a second screen (Acer 20" flat screen), hooked up with a DVI-D connection. The laptop (via the Intel GMA 950 video card) supports both clone and extended screen mode--I am using it exclusively in extended screen mode, i.e. just as if I had a desktop machine with two monitors attached. By default it sets my laptop screen on the left, external Acer on the right, with the Acer screen resolution set to match the laptop (the laptop is perhaps 10-20% smaller).

Using the standard Windows XP control panel applet ("Display") I went to settings and made two changes:
A) Dragged monitor 1 from the left of monitor 2 to the right of monitor 2.
B) Increased the resolution slider on monitor 2 to its maximum (1680x1050).
These changes took effect immediately, the spatial arrangement worked as expected, and everything is fine, even through a reboot.

The problem:
When I hibernate and then later resume from hibernation, the display settings revert to the default, undoing both the (A) and (B) changes I indicated above. In testing, I also tried Intel's native control panel (GMA driver) which allowed me to do make change (A) above, but the same problem resulted. And as I stated, the changes *do* persist through a reboot.. Any ideas on how to make the display configuration persist across hibernation?

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hi bleeping computer ,
                                     i ve been facing this problem . when im online monitor screen goes black and configuration changes and comes to normal . it blacks out for a second when connected to internet. wnt to check for malwares and system hijacks. and to check for whther network card is teamed? help

A:monitor goes black and configuration changes and comes back to normal when onlin

Ok rocky ...let's run these...let me know.Please download MiniToolBox, save it to your desktop and run it.Checkmark the following checkboxes:Flush DNSReport IE Proxy SettingsReset IE Proxy SettingsReport FF Proxy SettingsReset FF Proxy SettingsList content of HostsList IP configurationList Winsock EntriesList last 10 Event Viewer logList Installed ProgramsList Users, Partitions and Memory size.Click Go and post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.Note: When using "Reset FF Proxy Settings" option Firefox should be closed.Download TDSSKiller and save it to your desktop.Extract (unzip) its contents to your desktop.Open the TDSSKiller folder and doubleclick on TDSSKiller.exe to run the application, then on Start Scan.If an infected file is detected, the default action will be Cure, click on Continue.If a suspicious file is detected, the default action will be Skip, click on Continue.It may ask you to reboot the computer to complete the process. Click on Reboot Now.If no reboot is require, click on Report. A log file should appear. Please copy and paste the contents of that file here.If a reboot is required, the report can also be found in your root directory (usually C:\ folder) in the form of TDSSKiller_xxxx_log.txt. Please copy and paste the contents of that file here....ADW CleanerPlease download AdwCleaner by Xplode and save to your Desktop.Double-click on AdwCleaner.exe to run the tool.Vista/Windows 7/8 users rig... Read more

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I have two Samsung SyncMaster 2243BW monitors that are connected to a single computer with a NVIDIA GeForce4 MX 440 graphics card.

The problem I am having at the moment is that when you maximise a window, it gets maximised across the two displays rather than only on its relative display. As well as this, during log-in, the dialogue box is displayed directly in the middle of the two displays, making it unreadable.

Is there a way to correct this so that a maximized window would only be maximized on the display it appears on rather than across the two displays?

Also, it may be of relevance that when I view the 'Settings' tab in the display properties, only the settings for one monitor appear. I need to access the NVIDIA control panel to adjust settings for a dual-monitor configuration.

Any help would be greatly appreciated.

A:Solved: Dual-Monitor Configuration: Stop Maximizing Windows Across Both Displays

This issue actually resolved itself! I posted a moment too early.

A simple restart enabled additional options within the display properties to achieve what I wanted.

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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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I have a dual monitor set up through HDMI. My laptop works just fine but the second monitor went black during a gaming session and hasn't worked since. I have restarted, verified its on HDMI setting, updated drivers, checked refresh rates.

The Second monitor is still connected. I can move things there (cant see it) because it is black. When I right click and click screen resolution I can see the screen pop up.

I think the color scheme may have changed during the gaming session and that might be the culprit. It was an old game - 2009

I have Windows 7.

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Hi everyone,

I recently uninstalled a program called Bumptop from my computer. It basically makes your desktop 3D - mostly a gimic, but it was fun for a while. While uninstalling it, a browser window opened and said "page not found". Then the uninstall process got hung up. About 5 minutes later a window opened that asked if i wanted to send an error report. Then the monitor went black. I rebooted and it's still black. I tried plugging in a different monitor, and it still doesn't work.

I have two monitors set up on this computer and the secondary monitor works fine, but I can't see any of the windows that open (like my video properties) because they all open on the primary screen. Im totally stuck here. Any advice would be greatly appreciated.


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Hi guys ok so I have two screens set up one of them is my usual display.
A acer x223HQ PC monitor the other is a Samsung TV

There are both connected into the graphics card and not the motherboard. but yet screen two is black.

The rez for both screens are set too 1440x900 the monitor can go to 1920 but as the TV can not I lower them both to what the TV can.

The one thing that is bugging me is that the TV refresh rate is set to 75hz while the monitor is set to 60, when ever I try and lower the TV hz too 60 to match the monitor is flicks then sets itself back to 75hz. (doing this in nvidia;s control panel.

I will fill out my full specs in a few min, then i will go get my laptop to see if it is the TV that is messing with the rig

I have just noticed that the 2nd monitor has now changed from its amber light to a blue one. but is still black.

Thanks for any help!

A:Dual Monitors, Monitor two black

Try changing the montiors refresh rate to 75htz and see what you get.

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I am running a brand new alienware computer (win7 64 ult) with the new 23" LCD that it came with. It has an NVIDIA GeForce GTX 580. (2 DVI outputs) with the most recent NVIDIA drivers
When I connect an old CRT using the DVI-VGA adapter as a second monitor everything works fine.

When I connect my old 17" LCD using the same DVI-VGA adapter, however, BOTH screens go black!!!!! the old 17" LCD says "OVERSIZE RECOMMAND 1280x1024"
(btw, it really is "recommand", not "recommend")

When I disconnect the old 17" LCD, after ~20 sec the new 23" LCD comes back on, and says (sometimes) that the display recovered from a crash.

(In the past, when installing windows on a different computer using the old 17" LCD, i have had to plug in a CRT and change the resolution/refresh rate, then switch back to the LCD)

I have tried doing a clean installation of the drivers. I tried lowering the resolution/refresh rate before plugging it in.

Is there anyway to set the default output resolution when you connect a new monitor? Why would it cause my other monitor to shut off?

A:dual monitor Black Screen

What driver version are you running?

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I have had my tv set up as a second monitor to watch movies on. I have used it many times. I recently went to watch a movie and now my TV displays no color, just black and white. I have changed the color and display settings,used the "troubleshooting" and have searched the internet, but cannot figure out how to fix it. It worked without problems before.
Can someone please help me?
I am using a Dell Inspiron 6000, Windows XP Pro 2002, SP3. The TV is a standard Korean TV. I haven't changed anything from the last time to this time, so I don't understand why it wouldn't work now.

A:Dual monitor - TV is in black and white

Your TV setting might be set to NTSC on your computer while your TV requires PAL. You should be able to find this setting in the ATI Display Control Panel and change it to PAL, which I believe is used in Korea.

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Thank you for any and all help,
I have a home built Rig. Running Win7 RC 7100. Very happy with it. I just had a DVI/HDMI adapter, 15ft HDMI 1.3 cable and a 20ft coax cable delivered. MONOprice.com for the win on those(less than $20 delivered in less than a week)
Anywayz, I set up the cables and all to my Toshiba 37" LCD 37HL67 and the coax to my reciever. audio is working. And even the dual monitor set-up thru win7 works great. However, I am having a "desktop fitting the FULL screen" problem.
It is showing black barz top, bottom, left, and right. Not fitting the complete screen. My TV res is 1366x768. which i have win 7 set to. it seems to be the fullest on the entire screen. But not completely. It does not matter if i make it the main mont or not. Wont change. My GPU is a ASUS 4830 from Newegg(another winner ). I do have the latest drivers and even tried to play with the CCC and started seeing problems becasue i was doing a trial and error sesh and i stopped quickly. I am not PC inept but I am not the most savy creature either. This one is beyond me at this point. If anything is needed let me know and i will reply asap. Thank you in advance.

A:Dual Monitor showing black barz on TV(top,bot,R,L)

In the Nvidia Control Panel, go to "Adjust Desktop Size and Position", select the monitor you want to change and then try selecting "Use my display's built in scaling".

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I have two monitors I'm trying to set up on my old PC. My system is running two EVGA 560ti in SLI, with a mini-HDMI to HDMI going to the newer Viewsonic, and Mini-HDMI to DVI going to the older Dell monitor. I can get them to both display, but then if I let the system sleep, the primary monitor bugs out and goes black. Sometimes I can get the screen resolution window up on the secondary monitor, and when I can, I can usually get the problem resolved by changing the primary to portrait and back again, or changing the resolution. The other way the screen goes black is if one of the monitors is unplugged from the input, and I plug it back in, it will make the other monitor go black. What the heck is going on? I've reinstalled the video drivers twice.

A:Dual monitor issues, screen going black.

Happy New year.
As you have a thread already open about this issue here
If you would like this thread opened please PM a moderator.

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So here's the problem...
Every now and then when I'm playing games on my computer I have the game on my main monitor and youtube open in the other monitor, I tend to listen to songs that way, I get an error message saying something along the lines of 'Display driver has stopped responding and has recovered'. Usually this only makes both monitors go black for a second and then changes the youtube video box green until the next video on the playlist loads, so it wasn't a big deal for me. However today it happened and my second monitor that had the youtube video open on it went black, and stayed black. I restarted my computer, and it was still black. I unplugged my computer and monitors from the wall then booted up the computer, it is still black. I also tried changing the ports on the graphics card that the monitor is plugged into but nothing helped. The strange thing is I can still interact with the monitor, I can drag my icons over onto it and then drag them back onto my main monitor, the only problem being I can't see anything. When I ran 'dxdiag' and looked at the Display 2 tab it also showed no problems. If anyone else has had his issue and has fixed it or anyone knows a fix for this I would greatly appreciate it. I will post some spec's below to try and help with a conclusion.

Graphics Card: ATI Radion HD 5870 1024MB
Catalyst Control Center version: 11.5
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600)
System ... Read more

A:Dual-Monitor Issue - One Stays Black!

Some things to do;
1 Have you tried a system restore to a date before this happened?
2 Have you uninstall and reinstalled the video driver and the hydavision app for dual monitors?

You posted the system is overclocked. Have you tried changing ALL settings back to stock?

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Hello all, I recently replaced my MB, and RAM.

I am running two monitors, each on its own video card (GEforce 8800). I am experiencing a couple different issues.

1)When I come out of the screensaver the main displays horizontal position is off. I need to use the auto adjust to fix it.

2) When I start up or reboot the system, the desktop will come up for about 10 seconds, then both screens will go black for about 60 seconds. While this is happening I hear the windows noise that occurs when you plug in a usb/hardware device. Then the monitors come back on and all is well. The other side effect of this is the gadgets on the desktop are scattered everywhere. All of the gadgets from the secondary display are moved to the primary, the other ones are relocated.

Finally, a side note, for a few months now my secondary display will take a long time to turn on when I start the system, It will eventually come up with a completely white screen. then if I turn it off and back on, it will start working correctly.

Any help appreciated, not finding much through searching.

A:Dual monitor issue - Black Screen

(2) and the side note may indicate that the secondary monitor is beginning to fail. I say that because of my recent experience ...

I'm using a laptop with a docking station (HP) and external monitor, and normally have the laptop lid closed. I was having a terrible time getting the external display to work when I turned everything on or brought the system out of hibernation. After much (wrongly directed) cussin' at HP and Windows 7 I isolated to the monitor--if I kept it on, or turned it on an hour or so before the rest of the system, there was no problem. Bought a new monitor and have no such problems now.

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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?

Important Links: Global Support Pages | Knowledge Base ArticlesRemember to mark posts that resolved your issue with Accept as Solution. You can even mark multiple posts in a single thread. This will make it easier for others to find the same information. Use the Give Kudos button to offer a thumbs-up for good post content and a pat on the back to the author.

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I just set up a second monitor for my PC but it isn't working properly. I have 2 VGA ports on the back of the PC to which the monitors are plugged in. The second monitor isn't in the device and printers list, not recognised in the Change Screen Resolution settings and Detect doesn't find it. The current monitor that works is an LG and the one not working is an Asus. I connected the second monitor before booting the PC and it doesn't work.

A:Dual Monitor problems - Black screen and unrecognised

2 VGA ? Gfx cards don't usually have 2 VGA. I'm guessing you are plugging one monitor into the onboard VGA and the 2nd into the gfx card. The usual method for dual screen is to use 2 sockets on the card eg 2 * DVI, DVI + VGA, DVI + HDMI etc.

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So I recently installed windows 8, and got some issues with a screen going black for 2-3 seconds pretty randomly. From what little pattern I've experienced, it occasionally occurs when closing and opening tabs in Opera, haven't tested with other browsers or other tab based software. Mostly because of the randomness of when it happens it will be sort of difficult. First I thought of graphic driver, which is why I posted this here, however there is one thing that have me slightly doubting that assumption. I run dual monitors, and only the one monitor, in which the browser was placed, had the black screen. The other screen is perfectly fine, on and not black. Surely a driver problem of the graphic card such as a restart of the driver would blank out both screens?

I'm wondering if it could be some metro interference or something like that? Anyone experienced anything similar with any idea how to sort it out? Its nothing more then annoying, but in the long run that will get bothersome.

PS: Yes, I have checked the wiring

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Hello, I running a dual monitor setup with the following specs:

E8400 Dual Core at 3.00Ghz
8 GB DDR2 Ram
Nvidia 8800GT
Vista 64 bit

I have been using a dual monitor setup with relative ease for over a year now, previously on another computer and now on this one. Today, for no reason at all my primary monitor went black secondary one worked just fine. I was not even using the computer at the time, so it was strange for me to see that happen as I was reading from my bed.

I quickly restarted the computer and tried the normal tricks, I found that I could still move my mouse over and click and drag windows from that monitor to my second one. Curious about this, I turned it off and back on and saw the display of the monitor flicker back on, clearly showing the desktop with no visible problems. The problem was, that the display would once again go black after about a second or two.

I thought it might be the cables, so I switched them, but alas the working monitor worked with no problems and the blank monitor stayed blank. I could still move the mouse over onto it and quickly turning the thing off and on allowed me to drag this internet window over to the visible monitor

Now, I consider myself pretty good when it comes to handling technical problems, but this is one I can't solve. I've gone into the display settings a dozen times and nothing makes this monitor display. Interesting enough, when I go into hibernate the monitor flicks on for a few seconds before no long... Read more

A:One Monitor in Dual Setup suddenly turned black.

Does the other monitor work in the primary port? Does a monitor work in the "broken" display port as a single monitor? I would propably try reinstalling your video drivers, might be nothing about the monitors. (don't try if you do not get video out of either of the ports with only one monitor plugged in, will be quite a pain to do with a black screen)

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Greetings i have been fighting my system for some time now. the problem is when i boot up my computer one of my screens stays black.

if i then turn the screen off and back on 20 to 30 times it well come online and stays on.

it seems to me that if i leave the computer on for a little before i start to turn my screen on/off i have to do it less. but i have tryed to leave it on for 30 min and see. but i still had to turn the screen off/on several times before it worked

i am running:
windows 7 home premium
AMD prossesor
500W power sup
Radion HD5770 (Driver is version 12.10 the newest version)
motherboard is Asus M4a78 Pro

i have attached 2 Screenshots one wheer you can see my Screens, it is the left one i have to turn on and off to get to work(ViewSonic) and the right one works right off the bat (Digital Square)

the other ScreenShoot is the back of my computer where you can see the screens connec to my computer, as you can see one of em is running on a adaptor it is the Digital Square that is useing the adaptor aka the screen that works all the time.

i have tryed to use the ViewSonic solo but i still have the problem.

i am correct at the stages where i am ready to get a flower pot that i can place in the room in the hopes that turning it the right way well make this work. i have all ready been in the computer dusting it off and cleaning it out in case it was a heat/dirt problem. and last i check with a power sup calculate my system needed around 350W. so... Read more

A:dual Screen strat up problem. one monitor stys black

Change where they connect to the video card. To see if it makes the digital one intermittent. If it doesn't follow then I'd say your monitor is dying.

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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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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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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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I recently bought a new monitor to my PC... and i have a big problem.

I connected 2 monitors to my graphic card: Geforce gtx 1050.
One with HDMI and the 2nd one with a DVI adapter. 
They both detected by the computer but the 2nd monitor is blank/black.

My monitor that is not working is a Samsung s24f350


When i plugin the hdmi to the 2nd monitor he displayed but with the dvi he is only detected and not displaying...

  [1]: https://i.stack.imgur.com/FA8eg.png
  [2]: https://i.stack.imgur.com/HHtBg.jpg
  [3]: https://i.stack.imgur.com/cmxcs.png
  [4]: https://i.stack.imgur.com/FFwSV.png
  [5]: https://i.stack.imgur.com/Fqg9P.png
  [6]: https://i.stack.imgur.com/3AGzl.png
  [7]: https://i.stack.imgur.com/q9xDw.png
  [8]: https://i.stack.imgur.com/cCiPi.png

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Just purchased two Dell U2715H 27" monitors the other day and a Dell XPS8900 tower.

intel Core i7
16GB Ram
NVidia GTX 960
I am having an issue where when I launch two steam games I run into a crash. The games i'm trying to run are "Pure Pool" and "Pool Nation FX". Both games sometimes run without any issues, but occasionally when the game has ended the screen which I was gaming on will turn completely black, not even backlit, just black.

Also when I launch the games sometimes the monitor in which the game is running will be completely black, not even backlit, but i'll still be able to hear the sound.

What is really odd is that when I close the program such as the pool game, the black screen will still remain. (please note I can still use task manager on my other monitor).

Also, sometimes when I finish playing either game I won't get any black screen, but when I come to restart my computer one of my monitors will be black, not even backlit as before.

I can run DOTA 2 without any issues at all. This PC and monitors are both new purchased this week.

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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, th... Read more

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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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'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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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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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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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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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 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 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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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 recently purchased another monitor so I can run dual-monitors on my newly upgraded-to Windows 8 desktop. I set the monitor up last night, and I haven't had any major issues so far... One issue that I've run into, though, is the secondary monitor (regardless whether it's the monitor I owned first or the one I just bought) flashes randomly. Last night, a restart fixed the issue, so I didn't think anything of it. Today when I started it up, it was fine again for about 5-10 minutes. Then it began to flash randomly. It's not a constant steady flash, it only happens once every 3-10 minutes, but it shouldn't be happening. Does anyone else have the same problem and/or have suggestions on how to fix it?

Add'l info:

Monitors (both connected via HDMI, primary to primary gfx card, secondary to secondary gfx card)
1x Asus VW246H 24"
1x Asus VE248H 24"

Both set to 1920x1080p resolution, left as primary, right as secondary.

2x EVGA Nvidia GTX 560 Ti's in SLI Configuration

Most recent stable Nvidia drivers are installed. I'll test the beta ones later and update this if anything changes.

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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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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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I have the 2nd setup through a vga to hdmi cable but it just sits there black with "check signal cable."

2nd monitor is an lg2241


- multiple re-boots
- downloaded a driver from LG but don't see that it did any kind of install. Double clicking it's zip file opened it and clicking on the three files did nothing but open gibberish code.
- at screen resolution I see multiple displays and I have it set on extended.
- Clicked detect and identify
- #2 says display device on vga
- tried unplugging and reconnecting the cable (hdmi to vga)

I'm lost. SOS!



A:Dual monitor setup hdmi to vga on 2nd monitor shows nothing

Dave welcome to the Seven Forums.

That cable won't work unless the VGA port on the computer/laptop supports digital (highly unlikely), as VGA is an analogue signal and HDMI is digital. To get it to work you would need some kind of converter not an adapter, which that cable essentially is.

Assuming this is your monitor,

LG E2241V-BN: 22" Full HD LED LCD Monitor | LG USA

is says it has a VGA port on it. If it does then just use a plain old VGA cable.

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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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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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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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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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