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Lost dual monitor capability in XP

Discussion in 'Windows XP' started by Bob Wilson, Feb 18, 2010.

  1. Bob Wilson

    Bob Wilson Flightless Bird

    I had XP Pro running with dual monitors for a couple of years,
    switched out monitors from time to time and no problem. I've got an
    Intel 2.8 MB with onboard video connected to one monitor, and an ATI
    Rage Pro to the other monitor. Worked great till I had to replace the
    hard drive and reinstall XP Pro. I'm running SP3 with all updates.

    Now what happens is, whichever video adapter I make primary in the
    BIOS, XP comes up on it, with the drivers okay, and the non-primary
    one XP detects but Device Manager says the driver isn't installed.
    And nothing I can do will make it accept the driver for the non-
    primary one. But if I reboot and change the primary video adapter,
    then it comes up with the other adapter & monitor just great and the
    FIRST one is now failing to start.

    When I go to Settings on Display Properties, I only see one monitor in
    either case.

    I've tried taking out the ATI and starting without it, then and
    putting it back and restarting, no change. I don't know why this
    install of XP will only accept the primary video adapter and not a
    second one.
     
  2. DL

    DL Flightless Bird

    Did you install makers drivers or did you rely on MSUpdate after your winxp
    reinstall?

    "Bob Wilson" <roverdrover@gmail.com> wrote in message
    news:d50288de-975d-4b20-82d6-d862c2c40e38@y17g2000yqd.googlegroups.com...
    >I had XP Pro running with dual monitors for a couple of years,
    > switched out monitors from time to time and no problem. I've got an
    > Intel 2.8 MB with onboard video connected to one monitor, and an ATI
    > Rage Pro to the other monitor. Worked great till I had to replace the
    > hard drive and reinstall XP Pro. I'm running SP3 with all updates.
    >
    > Now what happens is, whichever video adapter I make primary in the
    > BIOS, XP comes up on it, with the drivers okay, and the non-primary
    > one XP detects but Device Manager says the driver isn't installed.
    > And nothing I can do will make it accept the driver for the non-
    > primary one. But if I reboot and change the primary video adapter,
    > then it comes up with the other adapter & monitor just great and the
    > FIRST one is now failing to start.
    >
    > When I go to Settings on Display Properties, I only see one monitor in
    > either case.
    >
    > I've tried taking out the ATI and starting without it, then and
    > putting it back and restarting, no change. I don't know why this
    > install of XP will only accept the primary video adapter and not a
    > second one.
     
  3. mac

    mac Flightless Bird

    > I've tried taking out the ATI and starting without it, then and
    > putting it back and restarting, no change. I don't know why this
    > install of XP will only accept the primary video adapter and not a
    > second one.


    I've used dual-monitors regularly for the past few years with both ATI
    and nVidia cards and ATI's latest Catalyst software is probably the best
    I've seen them release. Make sure you have the most up to date version
    - I think they have one download for more or less all cards now.

    If you can disable the dual-monitor support in the BIOS I would, leave
    it up to Winodws/ATI to handle the monitors. What's the make/version of
    the BIOS?

    Mac.
     
  4. DL

    DL Flightless Bird

    So what PC are you using which features a dual monitor entry in the Bios, a
    laptop? I've never seen such a bios entry in a desktop.

    "mac" <mac@mac.mac> wrote in message
    news:-OVQ84jUsKHA.6004@TK2MSFTNGP04.phx.gbl...
    >> I've tried taking out the ATI and starting without it, then and
    >> putting it back and restarting, no change. I don't know why this
    >> install of XP will only accept the primary video adapter and not a
    >> second one.

    >
    > I've used dual-monitors regularly for the past few years with both ATI and
    > nVidia cards and ATI's latest Catalyst software is probably the best I've
    > seen them release. Make sure you have the most up to date version - I
    > think they have one download for more or less all cards now.
    >
    > If you can disable the dual-monitor support in the BIOS I would, leave it
    > up to Winodws/ATI to handle the monitors. What's the make/version of the
    > BIOS?
    >
    > Mac.
     
  5. Bob I

    Bob I Flightless Bird

    Perhaps manually disabling the on-board video?

    DL wrote:

    > So what PC are you using which features a dual monitor entry in the Bios, a
    > laptop? I've never seen such a bios entry in a desktop.
    >
    > "mac" <mac@mac.mac> wrote in message
    > news:-OVQ84jUsKHA.6004@TK2MSFTNGP04.phx.gbl...
    >
    >>>I've tried taking out the ATI and starting without it, then and
    >>>putting it back and restarting, no change. I don't know why this
    >>>install of XP will only accept the primary video adapter and not a
    >>>second one.

    >>
    >>I've used dual-monitors regularly for the past few years with both ATI and
    >>nVidia cards and ATI's latest Catalyst software is probably the best I've
    >>seen them release. Make sure you have the most up to date version - I
    >>think they have one download for more or less all cards now.
    >>
    >>If you can disable the dual-monitor support in the BIOS I would, leave it
    >>up to Winodws/ATI to handle the monitors. What's the make/version of the
    >>BIOS?
    >>
    >>Mac.

    >
    >
    >
     
  6. Bob Wilson

    Bob Wilson Flightless Bird

    Thanks to all who wrote on this. No, there's not a BIOS option for
    two monitors, just AUTO or PCI or the onboard. AUTO makes Windows
    boot up on the PCI (ATI Rage) adapter. There's also no option to
    disable the onboard adapter, only to select the primary monitor.
    There are some DVMT settings and I don't know what that means, but I
    tried all of them. I have uninstalled both adapters in Device Manager
    and let it detect them, but if it's not the primary one, it won't let
    me install a driver.

    I did get it to do something different though -- now when I set the
    BIOS with the onboard adapter as primary, it starts to boot off the
    onboard adapter and when XP starts to load, the PCI monitor says "1:
    DSUB Cannot display this mode" and the onboard monitor goes black..

    I did download the newer ATI drivers, and they installed just fine --
    when I was running on the ATI adapter. I wanted to boot to the
    onboard adapter and re-install the ATI drivers when Device Manager
    said they were not installed (whichever adapter is not set as primary
    in the BIOS, XP says the drivers aren't installed and they won't
    install). But now I can't boot off the onboard adapter at all. I
    reset the BIOS to defaults, and got off the KVM and put mouse,
    keyboard and both monitors directly to the PC, and it's still not
    letting me boot off the onboard.

    The whole problem with this deal is in XP Pro -- I installed it with a
    hardware / BIOS config that was the same as the one that had been
    working just fine with the earlier install of XP Pro.
     
  7. DL

    DL Flightless Bird

    The simplest solution would be to use a vid card that supports dual monitors

    "Bob Wilson" <roverdrover@gmail.com> wrote in message
    news:c05edf6c-ec57-4b14-9c43-a79d784d9331@g28g2000yqh.googlegroups.com...
    > Thanks to all who wrote on this. No, there's not a BIOS option for
    > two monitors, just AUTO or PCI or the onboard. AUTO makes Windows
    > boot up on the PCI (ATI Rage) adapter. There's also no option to
    > disable the onboard adapter, only to select the primary monitor.
    > There are some DVMT settings and I don't know what that means, but I
    > tried all of them. I have uninstalled both adapters in Device Manager
    > and let it detect them, but if it's not the primary one, it won't let
    > me install a driver.
    >
    > I did get it to do something different though -- now when I set the
    > BIOS with the onboard adapter as primary, it starts to boot off the
    > onboard adapter and when XP starts to load, the PCI monitor says "1:
    > DSUB Cannot display this mode" and the onboard monitor goes black..
    >
    > I did download the newer ATI drivers, and they installed just fine --
    > when I was running on the ATI adapter. I wanted to boot to the
    > onboard adapter and re-install the ATI drivers when Device Manager
    > said they were not installed (whichever adapter is not set as primary
    > in the BIOS, XP says the drivers aren't installed and they won't
    > install). But now I can't boot off the onboard adapter at all. I
    > reset the BIOS to defaults, and got off the KVM and put mouse,
    > keyboard and both monitors directly to the PC, and it's still not
    > letting me boot off the onboard.
    >
    > The whole problem with this deal is in XP Pro -- I installed it with a
    > hardware / BIOS config that was the same as the one that had been
    > working just fine with the earlier install of XP Pro.
    >
    >
     
  8. Bob Wilson

    Bob Wilson Flightless Bird

    On Feb 20, 4:00 am, "DL" <notva...@spoofaddress.co.uk> wrote:
    > The simplest solution would be to use a vid card that supports dual monitors
    >

    Yes, I believe that's the next move. Do you recommend a certain one
    over the others?

    Thanks again
     
  9. Andy

    Andy Flightless Bird

    In order for the Rage Pro to function in dual monitors under XP, it
    has to be the primary display, because its bios has to run during
    power up to initialize the card. If it's not primary, the card won't
    run.

    On Thu, 18 Feb 2010 19:22:09 -0800 (PST), Bob Wilson
    <roverdrover@gmail.com> wrote:

    >I had XP Pro running with dual monitors for a couple of years,
    >switched out monitors from time to time and no problem. I've got an
    >Intel 2.8 MB with onboard video connected to one monitor, and an ATI
    >Rage Pro to the other monitor. Worked great till I had to replace the
    >hard drive and reinstall XP Pro. I'm running SP3 with all updates.
    >
    >Now what happens is, whichever video adapter I make primary in the
    >BIOS, XP comes up on it, with the drivers okay, and the non-primary
    >one XP detects but Device Manager says the driver isn't installed.
    >And nothing I can do will make it accept the driver for the non-
    >primary one. But if I reboot and change the primary video adapter,
    >then it comes up with the other adapter & monitor just great and the
    >FIRST one is now failing to start.
    >
    >When I go to Settings on Display Properties, I only see one monitor in
    >either case.
    >
    >I've tried taking out the ATI and starting without it, then and
    >putting it back and restarting, no change. I don't know why this
    >install of XP will only accept the primary video adapter and not a
    >second one.
     
  10. DL

    DL Flightless Bird

    I've used, Matrox, Ati and currently using Nvidea, they were all fine

    "Bob Wilson" <roverdrover@gmail.com> wrote in message
    news:143dd5d1-5d4e-464a-9de1-de785e444e23@f15g2000yqe.googlegroups.com...
    On Feb 20, 4:00 am, "DL" <notva...@spoofaddress.co.uk> wrote:
    > The simplest solution would be to use a vid card that supports dual
    > monitors
    >

    Yes, I believe that's the next move. Do you recommend a certain one
    over the others?

    Thanks again
     
  11. Bob Wilson

    Bob Wilson Flightless Bird

    On Feb 20, 10:17 pm, Andy <1...@2.3> wrote:
    > In order for the Rage Pro to function in dual monitors under XP, it
    > has to be the primary display, because its bios has to run during
    > power up to initialize the card. If it's not primary, the card won't
    > run.
    >

    I've tried two different Rage Pro's, one AGP and one PCI, and also an
    SiS. I've tried two cards at once, or one card plus the onboard, all
    combinations. When I set the Rage Pro as primary, it works fine but
    the second adapter will not start and won't allow me to reinstall a
    driver. Device Manager sees the second adapter but has the yellow
    exclamation point on it and nothing will change that. And Display
    Properties only sees the primary one.

    The ATI drivers put a whole range of options and controls in the
    Display Properties | Settings | Advanced but dual monitors is not one
    of the options. If Display Properties SAW the second one, it would be
    an option.
     
  12. Andy

    Andy Flightless Bird

    On Mon, 22 Feb 2010 12:50:49 -0800 (PST), Bob Wilson
    <roverdrover@gmail.com> wrote:

    >On Feb 20, 10:17 pm, Andy <1...@2.3> wrote:
    >> In order for the Rage Pro to function in dual monitors under XP, it
    >> has to be the primary display, because its bios has to run during
    >> power up to initialize the card. If it's not primary, the card won't
    >> run.
    >>

    >I've tried two different Rage Pro's, one AGP and one PCI, and also an
    >SiS. I've tried two cards at once, or one card plus the onboard, all
    >combinations. When I set the Rage Pro as primary, it works fine but
    >the second adapter will not start and won't allow me to reinstall a
    >driver. Device Manager sees the second adapter but has the yellow
    >exclamation point on it and nothing will change that. And Display
    >Properties only sees the primary one.
    >
    >The ATI drivers put a whole range of options and controls in the
    >Display Properties | Settings | Advanced but dual monitors is not one
    >of the options. If Display Properties SAW the second one, it would be
    >an option.


    You can't use two Rage Pros, since the one that is not primary won't
    run. The only way this can work is with the onboard video as the
    secondary, provided it can function as secondary under XP.
     
  13. Bob Wilson

    Bob Wilson Flightless Bird

    A friend gave me an ATI Radeon X1550 with dual heads, I downloaded the
    latest drivers, and everything's working great now. Thanks you guys
    for all the input.
     

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