VPC 2007 and video drivers

Discussion in 'Virtual PC' started by davdun75, Mar 22, 2007.

  1. davdun75

    davdun75 Guest

    After installing VPC2007 under WinXPPro and installing Win98SE on the VPC, my
    virtual BIOS won't even let me use the AGP card on my motherboard - leaves me
    with a 4MB video memory (a generic Trident video driver)... how can I
    install the Win98SE drivers for my video card on the virtual Win98SE... the
    Add New Hardware wizard, nor the Win98SE install app for the video card don't
    davdun75, Mar 22, 2007
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  2. davdun75

    davdun75 Guest

    Thanks for the rapid response... so how does that affect gaming and other
    graphic-intensive apps? Am I stuck with the S3 Trio graphic memory? (my
    mistake... NOT Trident)
    davdun75, Mar 22, 2007
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  3. davdun75

    davdun75 Guest

    sooo.... how do I increase the VIDEO memory on the VPC...
    davdun75, Mar 22, 2007
  4. davdun75

    Steve Jain Guest

    You can manually edit the .vmc file:

    <vram_size type="integer">8</vram_size>

    Change the 8 to a larger number, although I don't think you'll get a
    VM to recognize anything past 16MB, regardless of the number you put
    Steve Jain, Mar 23, 2007
  5. davdun75

    exIBMer Guest

    I tried the edit you suggested and found that the value was ALREADY 8mb, so
    I bumped it to 16 thinking that the 4mb I get from DirectX and Display may
    have gotten trimmed down a bit. No change in my video memory. Is there
    anything else that could be causing the 4mb to be fixed like that?
    exIBMer, Oct 3, 2007
  6. Why do you want to do this?

    Benjamin Armstrong
    Windows Virtualization Program Manager
    Blog: http://blogs.msdn.com/Virtual_PC_Guy
    Book: http://tinyurl.com/ysxcbm

    This posting is provided "AS IS" with no warranties, and confers no
    rights. You assume all risk for your use.
    Benjamin Armstrong [MSFT], Oct 4, 2007
  7. davdun75

    exIBMer Guest

    I'm trying to run an old video game that needs more than 4 mb of video ram.
    The product specs for Virtual PC 2007 say that 8 mb is Standard but I'm only
    getting 4 mb for this machine. Steve had posted a method for editing the .vmc
    file to expand the amount of video ram. When I tried it, the file already
    said 8 mb
    so I did an edit to make it 16 mb, thinking that may do something. It
    Which gets me back to my original question, which is now 2 questions. #1:
    is there something else that needs to be done to make the edit take effect.
    #2: why am I getting 4 mb when the file says 8 in the first place?
    So far, VPC works fine except for the video ram problem which is what I see
    a lot of the posts on this "problem".
    exIBMer, Oct 11, 2007
  8. davdun75

    Bo Berglund Guest

    Did you edit the file with VPC2007 closed down?

    Did you shut down the guest machine before you edited?

    I don't think you can change any hardware setting on a virtual machine
    while it is running or in a saved state. It must be completely shut
    down for this to be possible.
    And the video depth change may also need VPC2007 itself to be
    completely shut down in order to have any effect.
    Bo Berglund, Oct 11, 2007
  9. davdun75

    Paul Adare Guest


    None of what you posted really answers the original question.

    To the OP, you can't install the drivers for the video card that is
    installed in your host computer as the guest won't see that adapter. The
    only card your guest will see is the emulated S3 card. Check out the
    hardware section in Virtual PC's help files for more details.
    Paul Adare, Mar 16, 2008
  10. davdun75

    Tim Walsh Guest

    That's the beauty of Virtual Machines, they aren't hardware specific so they
    will run on pretty much any hardware platform. What that means is you don't
    get access to your physical graphics card, just the generic Trident driver.
    Tim Walsh, Aug 22, 2008
  11. davdun75

    Bill Grant Guest

    Installing the Virtual Machine Additions should load the video driver for
    the emulated video card.
    Bill Grant, Aug 23, 2008
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