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Thread: nvidia screen0, ati screen1&2 ?

  1. #1
    Join Date
    Mar 2008
    Posts
    206

    Default nvidia screen0, ati screen1&2 ?

    Yeah...cats and dogs sleeping together.

    I'd like to run a primary display (1900x1200) using onboard nvidia digital DVI (this works).

    I have PCIe x16 ati 3650 dual dvi in the machine I'd like to use to drive screens 1&2 (1680x1050). I don't care about opengl on these displays.

    So booting with onboard primary...it seems the atom bios won't initialize with the radeonHD driver.

    Booting with PCIe primary the nvidia onboard isn't detected by 'X'.

    Is there any way to kick the ATI card in the ass to initialize the atom bios on start of 'X' ?
    Or must I replace the ATI card with an nvidia ?

  2. #2
    Join Date
    May 2007
    Location
    Third Rock from the Sun
    Posts
    6,583

    Default

    Quote Originally Posted by bnolsen View Post
    Yeah...cats and dogs sleeping together.

    I'd like to run a primary display (1900x1200) using onboard nvidia digital DVI (this works).

    I have PCIe x16 ati 3650 dual dvi in the machine I'd like to use to drive screens 1&2 (1680x1050). I don't care about opengl on these displays.

    So booting with onboard primary...it seems the atom bios won't initialize with the radeonHD driver.

    Booting with PCIe primary the nvidia onboard isn't detected by 'X'.

    Is there any way to kick the ATI card in the ass to initialize the atom bios on start of 'X' ?
    Or must I replace the ATI card with an nvidia ?
    If your using the nvidia blob it won't work.

  3. #3
    Join Date
    Mar 2008
    Posts
    206

    Default

    Quote Originally Posted by deanjo View Post
    If your using the nvidia blob it won't work.
    The ATI pci-e card shows up as BusID 03

    Added to grub config kernel line:

    pci=rom

    I put this in my "local.start" (gentoo)

    echo "1" > /sys/bus/pci/devices/0000\:03\:00.0/rom
    echo "1" > /sys/bus/pci/devices/0000\:03\:00.0/enable

    This allowed the ATI card to be recognized.

    I've got one more combination to try to see if I can get this to work.
    Last edited by bnolsen; 05-13-2009 at 02:42 PM.

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