From owner-freebsd-multimedia  Tue Apr 10 19:30:17 2001
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Date: Tue, 10 Apr 2001 22:30:02 -0400 (EDT)
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To: Randall Hopper <aa8vb@nc.rr.com>
Cc: <multimedia@FreeBSD.ORG>
Subject: Re: Any DRI users with XFree86 4.0.3?
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I'm not sure that the mga part of that device driver knows the ID of your
card.  These two are defined down in

xc/programs/Xserver/hw/xfree86/os-support/bsd/drm/kernel/mga/mga_drv.c;

        switch (pci_get_devid(dev)) {
        case 0x0525102b:
                s = "Matrox MGA G400 AGP graphics accelerator";
                break;

        case 0x0521102b:
                s = "Matrox MGA G200 AGP graphics accelerator";
                break;
        }

Do a scanpci and see what the vendor/device numbers are on your card.

Also, I'm not certain if the PCI version of the mga cards will work under
the version of the DRI in XFree86 4.0.3, due to need to arbitrarily map
dma buffers after the system is running.  But I can't speak
authoritatively about that.

On Tue, 10 Apr 2001, Randall Hopper wrote:

>     Have you gotten DRI going with XFree86 4.0.3?  I have a question.  I've
> gotten it built, kernel modules installed, and loading (tip kudos to Nick
> Sayer and K.J. Bosschaart), and I'm even getting the module load boot
> probes:
>
>      Preloaded elf module "agp.ko" at 0xc03fa09c.
>      Preloaded elf module "mga.ko" at 0xc03fa138.
>      Preloaded elf module "drm.ko" at 0xc03fa1d4.
>
> However, I'm missing the drm0 device-related probe:
>
>      drm0: <Matrox MGA G200 AGP graphics accelerator> mem \
>        0xdf000000-0xdf7fffff,0xdf800000-0xdf803fff,0xe7000000-0xe7ffffff irq \
>        11 at device 0.0 on pci1
>
> mentioned here:
>
>       http://wop21.wop.wtb.tue.nl/freebsd/hwaccel.html
>
> If you have DRI going on XFree86 4.0.3, do you see one of these drm0 boot
> probes in your dmesg?
>
> (FWIW, I wouldn't expect to see the AGP probes also mentioned as I have a
> Matrox G200 PCI.  However, the missing drm0 probe in my boot-ups -- along
> with no appreciable rendering speed difference from before -- is probably
> relevent.  But that's a guess.)
>
> And what causes the "drm0" probe to be kicked out.  Maybe I'm missing some
> kernel config magic??
>
> Thanks,
>
> Randall
>
> P.S. I'm on 4.2-R, if that makes a difference.
>
>


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