Problem with Dual Monitors with ATI X1600 Pro 512mb

Discussion in 'Windows Vista Hardware' started by Kris, Apr 24, 2007.

  1. Kris

    Kris Guest

    I have been running Vista Home Premium for a couple of months, and it always
    showed the video adapter driver twice in the Device Manager (Primary and
    Secondary - the card supports 2 monitors). I ordered a second monitor (same
    model as current one, dell 1907fp ultrasharp) and upgraded to Vista Ultimate
    at the same time. Now under Vista Ultimate in the device manager, there's
    only one video adapter showing, and it refuses to acknowledge the second
    monitor. The secondary adapter DOES show up in the Device Manager in safe
    mode! This is driving me crazy - what am I missing??
    Kris, Apr 24, 2007
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  2. Kris

    Kris Guest

    Here's more info on the problem, in case anyone is actually looking into
    I've done all the updates for both ATI and Dell, reseated the card, and
    swapped cables and monitors. When the monitor 2 is unplugged, it shows the
    self-test screen, when plugged in it says "2: Digital Input In Power Save
    Mode." In my power save section, I've currently got it set so that nothing
    ever turns off. The 2nd adapter still shows up in Safe Mode, but can't be
    detected when I boot normally.
    Kris, Apr 25, 2007
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  3. Kris

    DanR Guest

    I have dual monitors using an ATI Radeon x600 display adaptor. (Vista Home
    Premium) It has one dvi and one analog port. I have a digital LCD in the
    digital port and an analog LCD in the analog port. The digital monitor scans
    for a digital / analog input and locks on to the digital input from the ATI
    card. At one time I had two LCD analog monitors connected using a dvi to
    analog adaptor. This setup has worked fine in XP and Vista. (I dual boot)
    In XP, device manager shows 2 ATI display adaptors but in Vista only 1
    display adaptor is shown.
    In YOUR device manager how many monitors are listed. In my Vista I have two
    monitors listed.
    In my display settings I show two active monitors... 1 and 2. When I click
    on 2 I see that I have checked the box that says "Extend the desktop onto
    this monitor". You must do that. However if you don't I believe you will see
    each monitor mirrored.
    When the computer boots it must see both monitors. If you have a KVM
    switch... make sure it's operating correctly or remove it until you figure
    out your problems.
    Once you boot does your monitor 2 continuously display the power save
    message? What is the power indicator on that monitor doing? Are both your
    monitors digital? Are you using a dvi to analog adaptor? Do you have the
    display resolution set correctly for the problem monitor? (Well if you can't
    see it you can't set the resolution but you can in safe mode) When you drag
    your mouse off the right side of monitor 1 do you get the feeling the it is
    traveling across the blank monitor? (move the mouse off the right side by
    what would seem to be half the screen and then slowly move it back to the
    main monitor. It should NOT immediately be visible on monitor 1)
    As you can see I have no particular solution for you but you can compare
    what I've told you about my system with yours.
    Any specific questions... post back.
    DanR, Apr 26, 2007
  4. Kris

    Kris Guest

    Ok, I'm gong to split up your post and answer these in the middle of yours:
    (Since my original post, I have also tested the monitors and cables on
    another system, as well as picking up another video adapter (this time the
    x1650 pro instead of the x1600 pro), no changes. When I first changed the
    video card, the system detected both ports, but as soon as I updated to the
    current ATI drivers, the second one disappeared.)

    It is showing only one adapter, but two show (primary and secondary) in Safe

    Only one. It's never given the other one enough of a signal to even detect
    it (if I turn it off, then on again, the device manager resets, like it's
    trying to add new hardware, but then, nothing).

    No second monitor available (yet!)
    No KVM switch (enough problems without adding that LOL)
    No, only when I push the Menu button on the monitor
    Solid orange
    Yes, and both ports on the card are DVI, no adapters

    It won't let me set up the other monitor, it only says "default monitor" and
    won't let me set up drivers, either.
    Never know when something will be just the ticket! Thanks!
    Kris, Apr 26, 2007
  5. Kris

    DanR Guest

    You said this:
    "When I first changed the video card, the system detected both ports, but as
    soon as I updated to the current ATI drivers, the second one disappeared."
    Does that mean that the two monitors worked OK before doing the ATI driver
    If so then it seems you have issues with the new driver. Are you installing
    the entire catalyst package? If I am reading your post correctly and the two
    monitors worked fine before the driver update you should roll back the
    driver and tread slowly. Don't install catalyst. Just do the driver update.
    Maybe even let Vista decide and download a newer driver for you. Choose
    "custom" from the Win update site and see if a new ATI driver is detected.
    You don't have onboard graphics (motherboard) by chance? (in addition to ATI
    DanR, Apr 26, 2007
  6. Kris

    Kris Guest

    Anytime I uninstall all of the drivers and catalyst, it comes back, but
    won't give me the option of two monitors (just a raggedy looking screen with
    huge icons LOL). Adding any sort of ATI driver makes that second port
    magickally disappear. I've got a ticket submitted to the ATI folks, but no
    answer yet.

    Nope, no onboard graphics :)
    Kris, Apr 26, 2007
  7. Kris

    DanR Guest

    I have no solution for you but am curious. When you uninstall all the
    drivers what comes back? What do you see on the 2nd monitor? Huge icons on
    the 2nd monitor only? Where do you NOT have the option of two monitors...
    "Display settings"?
    Have you tried one monitor at a time from each of the two DVI ports?
    DanR, Apr 26, 2007
  8. Kris

    Kris Guest

    I've tried swapping monitors and cables, even to another computer. (no slot
    in either of our other computers to test the video cards, but since it's two
    cards doing the same thing, chances are the cards are fine.)

    If I uninstall the drivers, pull the card out, switch it to the other one
    (they're close, but not quite the same) and let Windows pick one when it
    detects the new hardware, both ports are there. I can't restart the computer
    worth a darn from there, because it's Blue Screen Of Death Central until I
    get those drivers updated. With the basic drivers in, there's not even an
    option to extend the desktop under Display Properties, have to have al the
    fancy drivers for that, too :(

    It's so odd, but if the Device manager is open, and I turn the 2nd monitor
    off and on again - the Device Manager refreshes itself! No change, though...
    Kris, Apr 26, 2007
  9. Kris

    Kris Guest

    This is driving me nuts, and I can't get an answer out of ATI :(

    What if I add in a x1300 (has to a pci slot, I only have one pci express,
    and both cards would have to be ATI and use the same driver, right?) as a
    work around? Is there a better PCI card to use as a second card? I don't
    want to have to limit my video capabilities on either monitor!
    Kris, Apr 26, 2007
  10. Kris

    Kris Guest

    How about another question? Is a 375w power supply enough to run the thing
    with 2 monitors?
    Kris, Apr 26, 2007
  11. Kris

    DanR Guest

    Not sure about the power supply but whether you have one or two monitors
    connected it's still one graphics card. My guess is it's not a power supply
    issue. But the common denominator seems to be your computer. You've tried 2
    different graphics cards with the same results. And you've double checked
    all your cables. How new and beefy is your computer? Which CPU and how much
    memory. Catalyst uses a lot of memory.
    You may want to post for help in the Vista.general group. There's more
    action there. Might even consider a non Vista specific group as I'm thinking
    you have a computer problem and not a Vista problem.
    24hoursupport.helpdesk has some knowledgeable folks there. (and some
    DanR, Apr 27, 2007
  12. Kris

    Kris Guest

    I spent a good 4 hours with Dell support going over the computer, all the
    hardware checks out! It's a new XPS 410, with a 2 core 2.4 GHz processor,
    and 2gb of ram. There shouldn't be any hardware reason why this shouldn't
    run, I'm just grasping at straws here now... I'll try some different groups,
    and maybe ATI will get back to me one of these years <rolling eyes>
    Kris, Apr 27, 2007
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