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Hi I have the following senario, I have "Linuxed-box" with two VGA cards: AGP card (SiS 315PRO) & PCI card (S3 virge). "lspci" o/p: 01:00.0 VGA compatible controller: Silicon Integrated ...
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  1. #1
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    Multi-VGA cards


    Hi
    I have the following senario, I have "Linuxed-box" with two VGA cards: AGP card (SiS 315PRO) & PCI card (S3 virge).
    "lspci" o/p:
    01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 315PRO PCI/AGP VGA Display Adapter
    02:0c.0 VGA compatible controller: S3 Inc. ViRGE/DX or /GX (rev 01)
    I want to run the both, each with a monitor. I configured "xorg.conf", but I couldn't run them both in the same time.
    Here is some parts of the conf file:
    Section "ServerLayout" Screen 0 "Screen0" 0 0
    Screen 1 "Screen1" RightOf "Screen0"
    Section "Monitor"
    Identifier "Monitor1"
    VendorName "Monitor Vendor"
    ModelName "Bridge BM17C"
    DisplaySize 320 240
    HorizSync 30.0 - 70.0
    VertRefresh 50.0 - 160.0
    Option "dpms"
    EndSection

    Section "Monitor"
    Identifier "Monitor0"
    VendorName "Monitor Vendor"
    ModelName "TE 786"
    DisplaySize 320 240
    HorizSync 30.0 - 70.0
    VertRefresh 50.0 - 160.0
    Option "dpms"
    EndSection

    Section "Device"
    Identifier "Videocard1"
    Driver "sis"
    VendorName "Videocard vendor"
    BoardName "SiS 315"
    EndSection

    Section "Device"
    Identifier "Videocard0"
    Driver "S3"
    VendorName "Videocard vendor"
    BoardName "S3 ViRGE DX/GX"
    EndSection

    Section "Screen"
    Identifier "Screen0"
    Device "Videocard0"
    Monitor "Monitor0"
    DefaultDepth 24
    SubSection "Display"
    Viewport 0 0
    Depth 24
    Modes "1024x768" "800x600" "640x480"
    EndSubSection
    EndSection

    Section "Screen"
    Identifier "Screen1"
    Device "Videocard1"
    Monitor "Monitor1"
    DefaultDepth 24
    SubSection "Display"
    Viewport 0 0
    Depth 24
    Modes "1024x768" "800x600" "640x480"
    EndSubSection
    EndSection

    When I apply this configuration, none of the vgas work. Any clue?

    Best Regards,
    Issam Hambouz

  2. #2
    Super Moderator Roxoff's Avatar
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    What distro are you using?

    Have you tried this with 'videocard0' set to the sis chipset card?

    Do the cards work individually if you comment out the lines for the other card/monitor in this config?
    Linux user #126863 - see http://linuxcounter.net/

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    Thanks for the fast reply
    I'm using FC2 .. I was able to run each one of them individually.
    When I want to run the AGP card, I frist configure the Bios to start with the AGP. And when I want to run the PCI card I configure the Bios to start with the PCI VGA card.
    But coudn't run them both ..
    I agoogled and read many Howtos .. but still not able to run them both.
    HELP!

  4. #4
    Super Moderator Roxoff's Avatar
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    Does the machine dual-boot into windows? Does windows allow you to use both displays together? It should show the splash screen on both monitors if it will.

    If not, you may find you have a fundamental incompatibility with the video cards. I had a two-card setup briefly a couple of years ago, but I had problems getting the Matrox Millenium PCI I was using as a 2nd card to play properly. You might find (as I did) that there is a jumper on the PCI card you can use to make it co-operate. It could also be an issue with an older BIOS preventing you from using two video cards together like this. Of course, none of these apply if windows will use both monitors.

    Have you tried using the fedora display setup tool 'system-config-display' which can help you define multiple monitor setups (but I dont know about multi-card setups).
    Linux user #126863 - see http://linuxcounter.net/

  5. #5
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    mmm .. Yes it does work under windows (dual monitors).

  6. #6
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    Unhappy

    Quote Originally Posted by Roxoff
    Does the machine dual-boot into windows? Does windows allow you to use both displays together? It should show the splash screen on both monitors if it will.

    If not, you may find you have a fundamental incompatibility with the video cards. I had a two-card setup briefly a couple of years ago, but I had problems getting the Matrox Millenium PCI I was using as a 2nd card to play properly. You might find (as I did) that there is a jumper on the PCI card you can use to make it co-operate. It could also be an issue with an older BIOS preventing you from using two video cards together like this. Of course, none of these apply if windows will use both monitors.

    Have you tried using the fedora display setup tool 'system-config-display' which can help you define multiple monitor setups (but I dont know about multi-card setups).
    I checked the both VGA cards if they have such a jumper .. they don't.
    Till now i'm without a clue!

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