radeon 9200 256MB : DRI unusable

[khaqq <kh...@fr...>]

Hello, I'm trying to get 3D working on a Radeon 9200/256MB
but DRI refuses to work.
Dave Jones thinks it has to do with non-linear addressing of the=20
framebuffer, which X doesn't know about.

This is what I get in Xorg.0.log :=20

(II) RADEON(0): initializing int10
(II) RADEON(0): Primary V_BIOS segment is: 0xc000
(**) RADEON(0): Option "mtrr" "on"
(**) RADEON(0): Chipset: "ATI Radeon 9200 5961 (AGP)" (ChipID =3D 0x5961)
(--) RADEON(0): Linear framebuffer at 0xf0000000
(--) RADEON(0): BIOS at 0xeffe0000
(II) RADEON(0): VideoRAM override ignored, this driver autodetects RAM
(--) RADEON(0): VideoRAM: 262144 kByte (128 bit DDR SDRAM)
(II) RADEON(0): AGP card detected
(...)
(WW) RADEON(0): Failed to set up write-combining range (0xf0000000,0x100000=
00)
(II) RADEON(0): Wrote: rd=3D12, fd=3D120, pd=3D1
drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmOpenDevice: minor is 0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 5, (OK)
drmGetBusid returned ''
(II) RADEON(0): [drm] created "radeon" driver at busid "PCI:1:0:0"
(II) RADEON(0): [drm] added 8192 byte SAREA at 0xe0ab3000
(II) RADEON(0): [drm] mapped SAREA 0xe0ab3000 to 0x5033b000
(II) RADEON(0): [drm] drmAddMap failed
(EE) RADEON(0): [dri] DRIScreenInit failed.  Disabling DRI.

I load agpgart, intel_agp, and radeon in that order as modules.
kernel is 2.6.7, using xorg 6.7.0

cat /proc/iomem | grep 01:00.0
  df000000-df00ffff : 0000:01:00.0
  f0000000-f7ffffff : 0000:01:00.0
cat /proc/mtrr
reg00: base=3D0x00000000 (   0MB), size=3D 512MB: write-back, count=3D1
reg01: base=3D0xf8000000 (3968MB), size=3D  64MB: write-combining, count=3D2
reg02: base=3D0xf0000000 (3840MB), size=3D 128MB: write-combining, count=3D1

attached are dmesg, Xorg.0.log, xorg.conf

Thanks

Fran=E7ois Cami
Stilgar on freenode