drm/dri problem on FC3 (x86_64?)

[Hugh Caley]

I'm having a problem with an install of FC3 on an Opteron machine.  The
X performance is deadly slow; glxgears gives me less than 53 FPS.  On a
similarly x86 32-bit machine I'm getting well over 500 FPS.  It's the
same with both a Matrox G550 and an ATI Radeon 9200 card.

Seems to be a problem with drm and dri initialization.

Anyone else seeing this?

I've added to a bugzilla bug that seems to be on target.  There are
errors and xorg.conf snippets there.  Interestingly, it seems that it
isn't x86_64 specific. 

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=142105

Relevant log entries below.

I note that I have no /dev/dri directory.  Created one, but it's gone on
reboot.  My 32-bit machine has these entries in dmesg, but the 64-bit
machine does not:

i386:

agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode

x86_64:

dmesg:

agpgart: Detected AMD 8151 AGP Bridge rev B3
agpgart: Maximum main memory to use for agp memory: 7956M
agpgart: AGP aperture is 128M @ 0xf0000000
PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture

Linux agpgart interface v0.100 (c) Dave Jones

vesafb: probe of vesafb0 failed with error -6

Xorg.0.log:

(II) Loading sub module "drm"
(II) LoadModule: "drm"
(II) Loading /usr/X11R6/lib64/modules/linux/libdrm.a
(II) Module drm: vendor="X.Org Foundation"
(II) MGA(0): [drm] bpp: 32 depth: 24
(II) MGA(0): [drm] Sarea 2200+664: 2864
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: Open failed
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: open result is -1, (Unknown error 999)
drmOpenDevice: Open failed
[drm] failed to load kernel module "mga"
(II) MGA(0): [drm] drmOpen failed
(EE) MGA(0): [drm] DRIScreenInit failed.  Disabling DRI.

Hugh

-- 
Hugh Caley | Unix Systems Administrator | CIS
AFFYMETRIX, INC. | 6550 Vallejo St. Ste 100 | Emeryville, CA 94608
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