Dual Monitor Problem - Only 1 monitor working


  1. Posts : 4
    Windows 7 Professional
       #1

    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 display the Windows 7 Startup screens. This tells me both monitors and connections are good.

    Once Windows loads only monitor 2 has a display on it. Monitor 1 is blank. I have check and both monitors are running the same, and latest drivers. I have gone into windows and it shows two monitors, but I can not get a display on monitor 1.

    This is the first time I have had dual monitors so it may very well be a user error, but I am pretty computer literate.

    Any guidance would be appreciated.

    Thanks in advance.
      My Computer


  2. Posts : 3,187
    Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
       #2

    Go to Control Panel>>Display and then go to Change Display Settings. Under Multiple Displays go for "Extend these displays".
      My Computer


  3. Posts : 9,606
    Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
       #3

    Are you using 1 video card with multiple connections? or Dual video cards ?
      My Computer


  4. Posts : 4
    Windows 7 Professional
    Thread Starter
       #4

    1 Video card with 2 DVI outputs. Radeon HD 5850
      My Computer


  5. Posts : 3,187
    Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
       #5

    Is it set to "Extend these displays"?
      My Computer


  6. Posts : 4
    Windows 7 Professional
    Thread Starter
       #6

    Problem resolved....I hope. I re-installed the drivers again and then power-cycled the PC as reboot did nothing. 2 monitors are not visable.

    Thank everyone!
      My Computer


  7. Posts : 151
    Windows 7 Ultimate 64 Bit
       #7

    So you have your dual screens running now?
      My Computer


  8. Posts : 4
    Windows 7 Professional
    Thread Starter
       #8

    Yes all is working.

    Thanks
      My Computer


  9. Posts : 151
    Windows 7 Ultimate 64 Bit
       #9

    Excellent, enjoy the extended real estate
      My Computer


 

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