Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: DUAL MONITOR PROBLEM- second monitor not working!

25 Feb 2011   #1

Windows 7 Home Premium 64 bit
DUAL MONITOR PROBLEM- second monitor not working!

Hello, I'm new to the forum! Thanks for building this forum!

Here is my problem:

I have a "regular" Intel Graphics card on my HP desktop. It has a VGA port and a DVI port.

When I connect one monitor (a VIZIO 26" LED/LCD TV) to the VGA port, everthing is good...
I tried to connect a second monitor (the same TV model) but it didn't work, here's what happened:

I connected a DVI to VGA adapter into the DVI slot on the PC, then a VGA cable to the VGA port on the TV and it wouldn't even detect it!

The next thing I tried is I connected a DVI cable to the DVI port on the PC and on the other end I used a DVI to HDMI adapter and connected it to the HDMI port on the TV...well NOW the second monitor is detected in the "change display" options where you "extend" the view, BUT, my second monitor keeps shutting off (it's on PC input) automatically because it doesn't get a "signal" from the PC?

I tried to "extend" the monitor, but nothing happens! I only have a blue screen that says "no siganl" on the second monitor!

Does anyone have any idea what I can do!? Will I need another graphics card!?

Any insight is truly appreciated as I am not very versed in technology!

Thanks for your time and best regards!


My System SpecsSystem Spec
25 Feb 2011   #2

Windows 7 Home Premium 64 bit

BTW, the drivers are up to date...

My System SpecsSystem Spec
25 Feb 2011   #3

Windows 7 Ultimate 64 bit

I'm not sure about this, since this is an LCD/TV, connecting to a pc, I belive they must use HDMI to HDMI. Using an adapter for a VGA connection wont work do to the limitations of the VGA connection (has to do with resolution).

When you refer to a regular GPU on your desktop, are you referring to the onboard graphics of the mobo? If so I would get a decent GPU with at least dual DVI and one HDMI.
My System SpecsSystem Spec

26 Feb 2011   #4

Windows 7 Home Premium 64 bit

Hey Bass! Thanks for the input! Yes, I mean the "normal" card that came with the PC from the factory. I did notice when using the DVI to VGA adapter it wouldn't even detect the second monitor. I then used a DVI to HDMI adapter and now Windows detects the second monitor and gives me the option to expand the monitors, but nothing happens, like the second monitor doesn't have a signal!

Any ideas!?

Thanks in advance!
My System SpecsSystem Spec
26 Feb 2011   #5

Windows 7 Home Premium 64 bit

The current card is integrated on the motherboard, since it is on the top block with the other connections....
My System SpecsSystem Spec
26 Feb 2011   #6

Windows 7 Home Premium 64 bit

My System SpecsSystem Spec
07 Mar 2011   #7

Windows 7 Home Premium 64 bit

Issue resolved with a Star Tech USB VGA External Monitor Video adapter!
I followed the instructions that came with the adapter and it worked flawlessly! It only cost 60 bucks, too!
The added realestate is GREAT!!!

I fully reccomend the adapter! You can add as many as your card will support and if you have enough USB ports! Might go for athird one myself! Hahaha!!

My System SpecsSystem Spec

 DUAL MONITOR PROBLEM- second monitor not working!

Thread Tools

Similar help and support threads
Thread Forum
Dual monitor problem - 2nd monitor is blank
I have dual monitors set up for extended displays. The monitors are correctly positioned in the virtual display. When I move a window to the second monitor, it disappears from monitor 1 but doesn't show up in monitor 2 - that screen is black. Thanks
Graphic Cards
Dual Monitor (Monitor+HDTV) Setup, HDTV Resolution Problem
I apologize if this issue has been brought up before, I tried searching but it's tough trying to find stuff sometimes. But here's the problem, like the subject says I have a dual monitor setup. I can move windows media center to my 40" HDTV from my 26" LCD Monitor and it's fine. I can play...
Media Center
Dual Monitor Problem - Only 1 monitor working
I have recently built a new box with a clean install of Windows 7. Initially I only had 1 monitor and things worked fine. I decided to add a second monitor and that is when the problems started. When the system boots both monitors display all of the bootup information and and both monitors...
Graphic Cards
Dual monitor not working
I'm on a Sony Vaio laptop with a second monitor connected with a VGA cable. I just switched from Vista to Windows 7 and my second 22" monitor is not being recognized under the resolution screen. It worked perfectly fine on vista just hours prior. I tried hitting the detect button, reconnecting the...
Installation & Setup
dual monitor problem (primary monitor disappears)
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....
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:24.
Twitter Facebook Google+