Dual display 1 not displaying except on startup; both display in Linux

  1. Posts : 4
    7 Home Premium 64

    Dual display monitor 1 loses signal after startup; Linux displays both

    Windows 7 64 turns off the monitor 1 signal after startup. At login, it powers off monitor 1 and powers on monitor 2. Windows 7 behaves as though dual display is working even though monitor 1 does not display. It's the same for single display, the monitor will not work on cable 1 except at startup.

    Both 'Extend these displays' in Windows Screen Resolution and 'Extend' in the Nvidia Control Panel is selected. And changing which one is primary does not turn on monitor 1. Nor does switching the position of display 1 in either (ex. left/right/top/bottom).

    GeForce 8400 GS; Dual Monitor Solution 59 pin (DMS-59) to 2 VGA adapter -tried two of these adapter cables.
    Latest Driver: 306.23 - installed a clean reset install of the latest Nvidia driver released last week.
    Same Resolution: 2 of the 4 monitors I have tried have the exact same 'recommended' resolution (1280X 1024), both 60Hz, and even chose 16 bit color for both instead of 32 to reduce resources.

    Linux worked: Dual display worked immediately when I tried it in Ubuntu 10. So, it's not the hardware. It works in Ubuntu 12 too but not properly -it won't transfer windows across displays.
    My Windows 7 64 is an upgrade from Vista 64. One person in another forum with the same problem resolved theirs by reinstalling Windows 7. But another got the same problem only after a fresh clean install of Windows 7 64 with the same GeForce 8400 GS and DMS-59 when it had previously worked in Vista. Dual Monitors - Only One Works at a Time

    Pushing a menu button on monitor 1 does wake it up, but just says,
    1: Analog Input in Power Save Mode
    Press Any Key on Keyboard or Move Mouse
    Last edited by nikpapag; 28 Sep 2012 at 14:02.
      My Computer

  2. Posts : 357
    Windows 7 Home Pre

    are you Cloning these displays or extending, Don't Use Windows Setup use Nvidia's. It seems Nvidia like too take control. Go into there Display setup and change it there.

    Good luck. I can if your happy too show you how Via Remote Assistance. Msg me for Details.
      My Computer

  3. Posts : 4
    7 Home Premium 64
    Thread Starter

    I would love for you to show me!

    I chose both 'Extend these displays' in Windows Screen Resolution and 'Extend' in the Nvidia Control Panel.

    Do you use 'LogMeIn' or some other similar for Remote Assistance?
    Last edited by nikpapag; 23 Sep 2012 at 14:20.
      My Computer

  4. Posts : 357
    Windows 7 Home Pre

    I use windows and if you wanted I can use logmein after for Future Help. LMI I find faster and better for control.


      My Computer

  5. Posts : 4
    7 Home Premium 64
    Thread Starter

    Ok Mrd,
    I see 'RemoteApp and Desktop Connections' in the Control Panel. What URL do I put in for Remote Assistance?
      My Computer

  6. Posts : 4
    7 Home Premium 64
    Thread Starter

    Nvidia driver 285.62 from Oct 2011 is the latest driver to dual display. And all previous drivers back to 185.93 from May 2009 work as well. Also beta 290.53 works. But 295.73 from Feb 2012 and later will not dual display.
      My Computer


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