device manager shows two monitors

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  • paglamon
    Lord of Digital Video
    Lord of Digital Video
    • Aug 2005
    • 2126

    device manager shows two monitors

    I have only one monitor connected to my PC.But Device Manager shows two Plug & Play monitors.Why?



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  • jmet
    Super Moderator
    • Nov 2002
    • 8697

    #2
    Seems logical to me that perhaps the software for the monitor is installed twice?

    Comment

    • Chewy
      Super Moderator
      • Nov 2003
      • 18971

      #3
      video card and settings for dual out?

      Comment

      • paglamon
        Lord of Digital Video
        Lord of Digital Video
        • Aug 2005
        • 2126

        #4
        Thanks JMET & Chewy for replying.
        @JMET, the monitor did not come with any software.I have just formatted my PC and installed WinXP.I was using win2k previously and did not see this problem there.
        @ Chewy, I do not have an AGP card installed .So there is no option of video out for me.
        Just now I noticed that Device Manager is now showing the monitors as Default Monitors instead of Plug and Play Monitors.
        BTW, I am not facing any problem with display .Just am curious to know the reasons.
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        ONLY MOMENTS LINGER...DEWDROPS ON A FALLEN LEAF

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        • paglamon
          Lord of Digital Video
          Lord of Digital Video
          • Aug 2005
          • 2126

          #5
          Well, I was not entirely correct to say that I do not have any problems wth display.Actually I have, but this problem started much earlier than this dual monitor thing .So the two are probably unrelated.In SAFE MODE, I can't get to set my display to anything more than 800x600.This also happens at start up until the LOG ON TO WINDOWS window appears.From then on the display is ok(1024x768).
          Any input on these inconsistent behaviours?
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          ONLY MOMENTS LINGER...DEWDROPS ON A FALLEN LEAF

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          • jmet
            Super Moderator
            • Nov 2002
            • 8697

            #6
            Originally Posted by paglamon
            This also happens at start up until the LOG ON TO WINDOWS window appears.From then on the display is ok(1024x768).
            Mine does that.

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            • codajohn
              Digital Video Expert
              Digital Video Expert
              • Jul 2005
              • 661

              #7
              NTI KVM switches?


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              • Chewy
                Super Moderator
                • Nov 2003
                • 18971

                #8
                remove both(uninstall) and reboot

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                • benbryant
                  Digital Video Master
                  Digital Video Master
                  • Aug 2005
                  • 1314

                  #9
                  It'd happened the same thing to me way before. I did exactly what Chewy suggested in safe mode. after the reboot, the PC showed only one monitor

                  Regards

                  Comment

                  • paglamon
                    Lord of Digital Video
                    Lord of Digital Video
                    • Aug 2005
                    • 2126

                    #10
                    Originally Posted by jmet
                    Mine does that.
                    Glad to know I have company.
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                    • jm1647
                      An Eagles Fan, A MenuShrinker
                      • Apr 2005
                      • 3661

                      #11
                      Originally Posted by paglamon
                      Well, I was not entirely correct to say that I do not have any problems wth display.Actually I have, but this problem started much earlier than this dual monitor thing .So the two are probably unrelated.In SAFE MODE, I can't get to set my display to anything more than 800x600.This also happens at start up until the LOG ON TO WINDOWS window appears.From then on the display is ok(1024x768).
                      Any input on these inconsistent behaviours?
                      In safe mode and until it gets to the log in screen it is not using the specifc driver for the graphics card\monitor. The driver has to be loaded.

                      Comment

                      • paglamon
                        Lord of Digital Video
                        Lord of Digital Video
                        • Aug 2005
                        • 2126

                        #12
                        Ok.Tried as advised by Chewy.In SAFE MODE there is no monitor listed in DEVICE MANAGER.So, I uninstalled both the monitors from NORMAL mode and restarted.Same old story.Two DEFAULT MONITORS listed in DEVICE MANAGER.Below u can see the DEVICE MANAGER in SAFE MODE with monitor installed but not showing.
                        Last edited by paglamon; 7 Jul 2006, 03:23 PM.
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                        ONLY MOMENTS LINGER...DEWDROPS ON A FALLEN LEAF

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                        • Chewy
                          Super Moderator
                          • Nov 2003
                          • 18971

                          #13
                          Back with windows 98 we had problems with ghost devices where the duplicates in device manager only showed in safe mode, they were a nuisance
                          but added to problems from excess registry calls. Xp handles it much better,
                          my suggestion was just a stab in the dark.

                          what is you monitor exactly?

                          what's the date on the driver for the vid adapter(on board)

                          did you have another graphics card in the computer at one time?

                          Comment

                          • SMEG
                            Super Member
                            Super Member
                            • Mar 2006
                            • 278

                            #14
                            My machine is the same it shows two monitors but has never caused me any trouble or strife its been like it from the day i bought it i just thought it was the way it was like i say it causes no bother so not fussed about it

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                            • paglamon
                              Lord of Digital Video
                              Lord of Digital Video
                              • Aug 2005
                              • 2126

                              #15
                              OK .I finally got it right.And ,as usual,Chewy was right on spot.I downloaded the latest driver for the display adapter from Intel site.Updating the driver resulted in one Default monitor in Device Manager.Thank u ALL for your valuable insight into the problem.LOL.
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