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: 2nd monitor added but goes black after a few seconds..


02 Nov 2010   #1

Win 7 Ultimate x64
 
 
2nd monitor added but goes black after a few seconds..

I just added a 2nd monitor today to my comp, a Philips 109s. It turns on fine, displays the extended screen but after maybe 7 seconds, it goes black. If I change something within the screen res section(ie landscape to portrait), it fires back up, but goes black again in a few seconds. When the 2nd monitor is on, I can mouse over to it no probs.. The power lite always remains green (on).. Basically everything is set properly, but it just goes black again until I change a property..any ideas ?

My setup:
Win 7 Ultimate 64 bit - all updates
Main display Dell E248WFP
2nd Display Philips 109s
GTX 260 (main display DVI-DVI cable, 2nd display DVI-VGA cable) - newest drivers
Both displays set at their native resolution within the screen res section
2nd monitor to the left and "extend these displays" on.

My System SpecsSystem Spec
.

02 Nov 2010   #2

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Just out of curiousity is this a new monitor and how is it connected?
Please take the time also to fill in your entire system specs here
Name:  usercp 1.png
Views: 36
Size:  99.3 KB

You can use this program to help with that Speccy - System Information - Free Download
Thanks. Fabe


My System SpecsSystem Spec
02 Nov 2010   #3

Win 7 Ultimate x64
 
 

I just got it today, used but free, so it's not a big deal if it's busted, but I was told it worked.
It's connects via 2nd DVI port with a DVI to VGA cable (no adapter)
My System SpecsSystem Spec
.


02 Nov 2010   #4

Windows 7 ultimate 64 bit / XP Home sp3
 
 

I take it then it's a CRT? Just wondering if windows is having problems with the different refresh rates and resolutions.
Fabe
My System SpecsSystem Spec
02 Nov 2010   #5

Win 7 Ultimate x64
 
 

Sorry, should have said it's an LCD. They both are.
Should they be set at the same refresh rate ? I checked them out, the Dell was at 59 Mhz, the Philips was at 60Mhz. I set them both to 60.
My System SpecsSystem Spec
02 Nov 2010   #6

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Their basically the same, if the 59 will hold the 60 go and go ahead an set it to it. Usually it rounds it off.

Do both LCD's show up in device manager as what they are? If not then you might want to search for the driver (.inf file) for the other or both.
This way Windows will be able to recognize them for what they are and allow full access to the available resolutions especially the native of each LCD.

If you would Copy and Paste an expanded view of monitors in device manager we can see how they are listed if the new one is PNP then that's most likely where your problem is.
Fabe
My System SpecsSystem Spec
02 Nov 2010   #7

Windows 7 Ultimate 64 bit
 
 

There are default refresh rates for each monitor. I have a dual set up as well and same problem....both were set to 60mhz and change second one to 75mhz and problem solved. Play with the refresh rate of the second monitor. There is also a check box to force it to show all the refresh rates if you don't have any choices.
My System SpecsSystem Spec
03 Nov 2010   #8

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Quote   Quote: Originally Posted by bassfisher6522 View Post
There are default refresh rates for each monitor. I have a dual set up as well and same problem....both were set to 60mhz and change second one to 75mhz and problem solved. Play with the refresh rate of the second monitor. There is also a check box to force it to show all the refresh rates if you don't have any choices.
Hopefully once he logs back on we'll know if it's fixed.
Fabe
My System SpecsSystem Spec
03 Nov 2010   #9

Win 7 Ultimate x64
 
 

Here you go, I tried looking for drivers, but can't find any that actually work on Windows 7 x64. It always says my driver is up to date. Found the below kind of interesting tho..Regardless, the 2nd monitor still goes black after about 7 - 10 seconds. FURTHER..it's a Philips 190s6FB..made a mistake earlier

But you go to "add device and printer" and you get this..



My System SpecsSystem Spec
04 Nov 2010   #10

Windows 7 Ultimate 64 bit
 
 

To check the 2nd monitor itself, disconnect first monitor and connect 2nd monitor as pirmary monitor. If it works then we know it's good if not it's a good chance it's bad. This will tell us it's a refresh rate or cable problem.

To check/change refresh rates.

1. right click anywhere on open area of desktop
2. select screen resolution
3. select display
4. click advance settings
5. select monitor tab
6. click screen refresh rate and select different rate from the drop down menu. Right below that is where you'll see the box to check/uncheck for different refresh rates or modes. If there is only one choice then uncheck box, this will give you more options.

Once you gone through this and it's not resolved the next step is to check cables. I see that you have a DVI to VGA connection. First try a VGA to VGA, then DVI to DVI. If you have to barrow some cables from a friend or buy some,there about $20 each.
My System SpecsSystem Spec
Reply

 2nd monitor added but goes black after a few seconds..




Thread Tools



Similar help and support threads for2: 2nd monitor added but goes black after a few seconds..
Thread Forum
Added asus monitor problems with cut and paste General Discussion
Periodic black screens, persists for 3-5 seconds at a time General Discussion
R- hand display goes black for 2-3 seconds Graphic Cards
Random Blue screen for 2 seconds then Black then reboots!?! BSOD Help and Support
Screen often goes black for 2 seconds Graphic Cards
Black Screen for 5-10 seconds before windows login scre General Discussion
Black Screen Flashes for 2 Seconds when Aero is Enabled BSOD Help and Support

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 04:21 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33