Dual monitor not working on NVS-295 with Windows 7 64 bit


I have a Dell T3500 workstation with Quadro NVS 295 video card. It runs Windows 7 64 bit and have all of the latest nVidia drivers installed (295.73).

I have 2 identical Dell P2312H monitors attached to the card through Display Port -> DVI adapters that came with the card. No matter what I do the second monitor is not identified by the system. Any idea how to fix this?

Thank you!

NVIDIA System Information report created on: 03/11/2012 14:29:53

Operating System:      Windows 7 Professional, 64-bit (Service Pack 1)
DirectX version:      11.0
GPU processor:      Quadro NVS 295
Driver version:      295.73
DirectX support:      10
CUDA Cores:            8
Core clock:            540 MHz
Shader clock:            1300 MHz
Memory clock:            695 MHz (1390 MHz data rate)
Memory interface:      64-bit
Total available graphics memory:      3070 MB
Dedicated video memory:      256 MB GDDR3
System video memory:      0 MB
Shared system memory:      2814 MB
Video BIOS version:
IRQ:                  0
Bus:                  PCI Express x16 Gen2


nvui.dll                      NVIDIA User Experience Driver Component
nvxdsync.exe              NVIDIA User Experience Driver Component
nvxdplcy.dll              NVIDIA User Experience Driver Component
nvxdbat.dll              NVIDIA User Experience Driver Component
nvxdapix.dll              NVIDIA User Experience Driver Component
NVCPL.DLL              NVIDIA User Experience Driver Component
nvCplUIR.dll            4.3.790.0            NVIDIA Control Panel
nvCplUI.exe            4.3.790.0            NVIDIA Control Panel
nvWSSR.dll              NVIDIA Workstation Server
nvWSS.dll                      NVIDIA Workstation Server
nvViTvSR.dll              NVIDIA Video Server
nvViTvS.dll              NVIDIA Video Server
nvDispSR.dll              NVIDIA Display Server
NVMCTRAY.DLL            NVIDIA Media Center Library
nvDispS.dll              NVIDIA Display Server
NVCUDA.DLL              NVIDIA CUDA 4.1.1 driver
nvGameSR.dll              NVIDIA 3D Settings Server
nvGameS.dll              NVIDIA 3D Settings Server
Who is Participating?
CallandorConnect With a Mentor Commented:
I think this is pointing to the video card failing, since the same monitor does not always have the problem - please try another video card.  You can also test out the two new monitors on another system, just to be sure.
Have you looked at this Microsoft solution ?

ilyabaAuthor Commented:
Well, I haven't seen this particular one, but it's nothing new to me. Besides, this system used to work with 2 other displays without any problem.
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Swap the monitors and see if the one that doesn't work starts working.  What models were the monitors that used to work?  Did they use display port adapters?
ilyabaAuthor Commented:
The displays that used to work are another make of Dell. Older ones. with 1680x1050 max resolution. Connected via the same Display Port --> DVI adapters.
And what happened when you swapped these new Dell P2312H monitors with each other?  Did the problem stay with the same monitor?
ilyabaAuthor Commented:
Swapping the monitors behaves strange enough. Swapping them while the computer is working always leaves the monitor that used to work still working. While swapping them while the computer is off makes the monitor connected to port 1 working. Any one of them. Another thing that I noticed is that the non-working monitor periodically gets SOME signal since it blinks the "Entering Power Save Mode" message roughly once in a minute.
ilyabaAuthor Commented:
Update: I replaced the card in the end. Probably some hardware failure.
Case closed :)
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