intel driver, modular xorg, is /dev/agpgart really needed?

[Kevin Downey]

On 5/19/07, harrow <harrow at yandex.ru> wrote:
> >from pciconf -lv
> >vgapci0 at pci0:2:0:       class=0x030000 card=0x514d8086 chip=0x29a28086
> >rev=0x02 hdr=0x00
> >    vendor     = 'Intel Corporation'
> >    device     = 'G965 Integrated Graphics Controller'
> >    class      = display
> >    subclass   = VGA
> >
> >using the ports tarball from http://wiki.freebsd.org/ModularXorg I
> >have installed Xorg 7.2 on a fresh system. The system has the above
> >mentioned onboard video chip. I have been playing around with the
> >'i810' and the 'intel'(not in ports) driver.  I keep seeing this:
> >
> >(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
> >(WW) intel(0): /dev/agpgart is either not available, or no memory is available
> >
> >I do have agp compiled into my kernel. I don't have an agp bus on the
> >board. I am not sure why the driver is looking for one.
>
> I've i945. Problem appears because of PCI-Express video? as i've found fromthis  maillist. If I use
> for exmaple "kldload acpi_video", then there no AGP driver device assosiasion in "pciconf -lv", and no /dev/agpgart, no DRI.
>
> I use only "kldload i915" and agpgart device appears, and agp driver became assotioated with video device. I mean "device agp" or "kldload agp" have take place before i915 + drm modules loaded.

so the sequence you  use is:

kldload agp
kldload i915

and everything works?

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