Problems enabling DRI - card not found
 

I've just upgraded my motherboard & cpu and reinstalled Mandrake 9.1, which automatically set up DRI before. Now, my video card (Matrox G400) works fine, but DRI isn't enabled. The relevant lines from the X error log are:

drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: Open failed
drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: open result is -1, (No such device)
drmOpenDevice: Open failed
[drm] failed to load kernel module "agpgart"
[drm] failed to load kernel module "mga"
(II) MGA(0): [drm] drmOpen failed
(EE) MGA(0): [drm] DRIScreenInit failed. Disabling DRI.

I've checked in my filesystem and there's no "/dev/dri/card0". But since it's a device file, I doubt I can fix it by just creating a new file. Does anyone have any ideas? One thing I noticed is that there's a line that says:

(--) Assigning device section with no busID to primary device
(--) Chipset mgag400 found

And the output from scanpci give this information:

pci bus 0x0001 cardnum 0x00 function 0x00: vendor 0x102b device 0x0525
Matrox Graphics, Inc. MGA G400 AGP

Please let me know if this is something anyone has seen before.

Try downloading the DRI mods from the card site.
I had similar problems when I was using Red Hat, so I downloaded my radeon drivers form ati.com and it solved the problem. dunno about Matrox though

I think I solved the problem...according to /var/log/syslog, the chipset on my new motherboard isn't supported. So instead of "modprobe agpgart", I had to enter "modprobe agpgart agp_try_unsupported=1". That loaded the module, and I can use DRI now. Now, I'm just wondering if it's going to stay that way or if I have to tell it to load that module every time I boot up...