intel card not working when booting on another VGA card

strawks strawks at
Wed Dec 10 01:16:09 PST 2008

Xorg doesn't really fail to start, it just seems to mess up with the BusID
If I set BusID either to one or the other card with the vesa driver it will
use the card defined as the primary adapter in the bios.

If I set the primary adapter to be the integrated intel card, it works just
fine, even with the ATI card plugged in.


On Wed, 10 Dec 2008 10:04:31 +0100, Matthieu Herrb <matthieu.herrb at>
> strawks wrote:
>> Hi,
>> On Wed, 10 Dec 2008 00:18:17 -0800, Ian Romanick <idr at>
>> wrote:
>>>> When I boot on the ATI card (select PEG card first in the bios), I
> can't
>>>> get the intel driver in xorg to display anything.
>>> That's because when you install an external PCI-e card it physically
>>> disables the integrated graphics.  Some of the mobile chipsets support
>>> multigraphics, but as far as I'm aware none of the desktop ones do.
>> I don't think the integrated card is disabled because :
>> 1) I have set an option in the bios to enable integrated card even if a
>> card is present
>> 2) lspci and Xorg both see both cards.
> <>
> --
> Matthieu Herrb

More information about the xorg mailing list