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Question

Windows 10 Won't Let Me Use 3 Monitors

Hello All,
I've recently upgraded my desktop computer to Windows 10 from Windows 7 (service pack 1). My computer build is posted below.
GPU - GeForce 210
CPU - Intel(R) Core(TM i5-3470 CPU @ 3.20GHz
Memory - 8.00 GM Ram
Operating System is Microsoft Windows 10 Pro
I had 3 monitors running on Windows 7. One monitor was running on my on board graphics card. 2 other monitors were running off of the GeForce 210 graphics card (PCI-e). To get three monitors running on Windows 7 using two separate graphics cards I had to enter the BIOS and enable the on board graphics card. After enabling this in the BIOS I updated the drivers for each graphics card. Then it worked.
When I upgraded to Windows 10 the monitor plugged into my on boards graphics card wouldn't work if I had the other two monitors plugged in. However, the on board graphics card monitor works just fine if I unplug the other two monitors from the PCI-e graphics card. Is there a new setting in Windows 10 I need to disable/enable to have my third monitor working again?

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All Answers

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Answer
True.

In reply to: Windows 10 Won't Let Me Use 3 Monitors

This is all about drivers. You'll need to get back to the maker of the PC or cards to see if there are newer Windows 10 drivers. What's in the OS will be very basic.

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Answer
geforce drivers is the issue

In reply to: Windows 10 Won't Let Me Use 3 Monitors

as previously stated, it is a known problem. It is so bad a lot of users are being told their computer is not compatible with win10. I was one of them, in spite of installing and running the technical preview. I had to get the iso version since it would not do an automatic upgrade install. hate to say it but you may have to wait until microsoft and the manufacturers get in sync with drivers.

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Answer
Same problem with ATI

In reply to: Windows 10 Won't Let Me Use 3 Monitors

I have an ATI 7900 séries, with 3GB and support for 4 simultaneous monitors.
When I used it with Windows 8.1, I used 3 simultaneous monitors.
Now, with Windows 10, I need to choose two of my three monitors to use.
I´m using the latest drivers.

So... the problem is not with Nvidia cards.

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Same with NVidia

In reply to: Same problem with ATI

Same with NVidia. Had problems upgrading my drivers at NVidia. Uninstalled everything NVidia and was then able to load most recent driver from site. Still unable to display more than 2 monitors. Very frustrating. Must be a Windows 10 problem.

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Answer
Try this Worked for me

In reply to: Windows 10 Won't Let Me Use 3 Monitors

For me it is just the new layout of the display settings that doesnt work.
Try this:
Update windows and display drivers. (might not be required, but i allready did this on my machine)
Go to "Control panel"
Click "Display"
Click "Change Display Settings"
All 3 Screens should be displayed there. One shows as disconnected (the screen is a darker color than the rest)
Click the screen that is not working (The disconnected one i'm guessing Happy ) and choose "extend desktop to this display"
And you should have your 3 monitors again.

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Having same issue...just updated

In reply to: Try this Worked for me

I went into the display settings but it will not let me extend the desktop and save the changes. Says I cant save that combo of settings....

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No luck

In reply to: Try this Worked for me

My 3rd monitor is not detected. If I unplug the monitors and only plug in one at a time each is recognized independently as an extended display but I can't get more than 2 monitors detected.

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Thank you!

In reply to: Try this Worked for me

Hey, I haven't had my 3rd monitor for months. Decided to google my problem again and BAM your answer helped me! I now have 3 monitors thanks to you, I had to make an account just to say thank you.

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That doesnt work

In reply to: Try this Worked for me

Just so you know, thats not the solution.... it will still only allow monitors 1 and 2, or 1 and 3, or 2 and 3, but NOT 1,2 and 3 at the same time.

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Ditto

In reply to: That doesnt work

Exactly as Boba described.

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Mine Either

In reply to: That doesnt work

Yeah, mine too!

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not helpful is right

In reply to: That doesnt work

these answers assume the machine detects the 3rd monitor. I had 3 working fine until reboot this am and now only 2 are detected. have tried moving cables and still no luck. it would be nice to know how to solve this as i really love 3 monitors setup!

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Let's say forums can't help.

In reply to: not helpful is right

I see the usual back and forth so for this round let's call it a bust.

Next stop is the video card's own support. They should know this backwards and forwards PLUS they need to hear from folk that it doesn't work so they know to fix a buggy driver.

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SAME ISSUE

In reply to: Try this Worked for me

I was using 2 more monitors from my laptop, with one being plugged into the VGA and the other thru a USB. So after the "Windows" upgrade the USB one won't play, but if I plug it into the VGA it will play. So I bought a splitter for the VGA, and now they are both on and duplicated because the display won't let me extend the screen from the laptop the old way, even after I did a roll back. Is there any other options???

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Checked Your Graphics Driver?

In reply to: SAME ISSUE

Sometimes, the Windows 10 upgrade/update will automatically install it's own version of the "right" driver for Windows. Typically, it may NOT be the right driver. Check Device Manger and see if your display is the correct one. And then, try visiting the computer manufacturer's website, or the graphic card manufacturer's website, then download and install the latest driver for your computer that's Windows 10 supported.

Hope this helps.

Grif

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Super Helpful!

In reply to: Try this Worked for me

This was very helpful. I thought I was either loosing my mind or there was something wrong with the minidisplay port I was using.

Thanks!

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Answer
Solved it !

In reply to: Windows 10 Won't Let Me Use 3 Monitors

Happened to me just now. So I connected the 2 monitors and just restarted my laptop. Windows detected the new monitor and installed a driver(?) and now I can use 3 monitors. Hope this helps.

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Need to Solve it!

In reply to: Solved it !

I have been trying to get my third monitor up and running since I bought this new laptop with Windows 10. VGA USB adapters I used with 7 didn't work. I now have an HDMI VGA adapter which gets me closer as I now see a 3rd monitor in display settings but it still won't detect a display. I have tried all the above actions but no good results. Any more suggestions?

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Hey...

In reply to: Solved it !

The 2 monitors with the Laptop being 1 and a 2nd monitor being # 2 right? And then restart the laptop and the computer will find the drivers for the 3rd?

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Answer
Late to the party on this one as a slightly old thread

In reply to: Windows 10 Won't Let Me Use 3 Monitors

So I just had this problem happen to me running 3 monitors and AMD Radeon r9 graphics card that was running on Windows 7 and updated to 10 about a month ago. Everything was working fine at this point yet. Have not had any problems until AMD asked for an update today and ok'd it and then the problem started and knocked out my third monitor. Looks like at least with AMD the first 2 monitors can be any connection but thereafter the monitors need to be connected with a displayport connection. In my case I bought an HDMI to mini-displayport adapter and all is well again. Why this happened now when it was working fine with Windows 7....don't know but this fix worked for me. Hope it helps.

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Edit to this

In reply to: Late to the party on this one as a slightly old thread

it must be an active displayport adaptor

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Answer
Swap graphic cards around

In reply to: Windows 10 Won't Let Me Use 3 Monitors

I had this problem after upgrading to Windows 10. Initally everything was okay, then (after a Windows update I think) I lost one of my three monitors.

I tried swapping the monitors around, without success.

Eventually I reversed the cards in the PCI Express slots and this prompted window to re-evaluate and fix the issue. All okay now

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Answer
Windows 10 will allow you to use 3+ monitors after a restart

In reply to: Windows 10 Won't Let Me Use 3 Monitors

Hi,

For anyone still experiencing this with modern nVidia / AMD gfx cards try the following. After installing Win 10 x64 Professional this took me 1 hour to fix. When plugging in monitors it would only support 2 with the newest nVidia drivers for my GTX 970 card.

1. Plug in your two DVI port displays first. Make sure they light up and are activated.
Next...
2. Restart your Win 10 computer. This saves your windows display profile to Windows 'best stable saved mode' and in turn makes it more happy to support more displays.
3. Next plug in your Display Port cord. Win will now light up your third display.

I hope this worked for you! ...and saved you an hour or two of headaches.

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Answer
it is indeed possible

In reply to: Windows 10 Won't Let Me Use 3 Monitors

it is possible to do but you need to use your motherboard io in conjunction with your card. You need to go into your bios and enable you IGD integrated graphics device and hook your third monitor to it then go back into display settings and extend your desktop

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