Florian Kulzer wrote:
On Fri, Nov 07, 2008 at 19:41:38 -0800, Jason C. Wells wrote:
I'm having trouble with DRI on my Radeon 9600 Pro.
(II) RADEON(0): [agp] Mode 0x1f000207 [AGP 0x1002/0x5833; Card
0x1002/0x4150]
(II) RADEON(0): [agp] 8192 kB allocated with handle 0x00000001
(II) RADEON(0): [agp] ring handle = 0x00000000
(EE) RADEON(0): [agp] Could not map ring
(EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI.
(II) RADEON(0): [agp] You may want to make sure the agpgart kernel
module is loaded before the radeon kernel module.
Based on that message, I would try to change the module load order. (It
does seem that agpgart gets loaded before radeon already, though.)
I would shut down X and remove all the modules (as root):
modprobe -r radeon drm ati_agp agpgart
Check with lsmod that the modules have really been unloaded. Then load
them again in different sequences, e.g.:
modprobe agpgart
modprobe ati_agp
modprobe drm
modprobe radeon
or
modprobe ati_agp
modprobe drm
modprobe radeon
and test if X can be started with DRI.
I tried loading modules manually to no avail. I also looked at
modules.dep which had all of the modules listed in the correct
dependency order.
This motherboard is from a Shuttle ST61G4. It has an onboard ATI 9100
IGP (integrated graphics processor). I have also installed and AGP ATI
9600 Pro. There is a BIOS setting that controls the AGP aperture for
the IGP. I had set that value to 0 MB since I do not use the onboard
IGP. I set the AGP aperture to 128MB and now DRI works.
Apparently the linux driver needs the AGP aperture set where the Windows
driver does not.
Details included for posterity.
Broken:
(==) RADEON(0): Using AGP 4x
(II) RADEON(0): [agp] Mode 0x1f000207 [AGP 0x1002/0x5833; Card
0x1002/0x4150]
(II) RADEON(0): [agp] 8192 kB allocated with handle 0x00000001
(II) RADEON(0): [agp] ring handle = 0x00000000
(EE) RADEON(0): [agp] Could not map ring
(EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI.
(II) RADEON(0): [agp] You may want to make sure the agpgart kernel module
is loaded before the radeon kernel module.
Fixed:
(==) RADEON(0): Using AGP 4x
(II) RADEON(0): [agp] Mode 0x1f000207 [AGP 0x1002/0x5833; Card
0x1002/0x4150]
(II) RADEON(0): [agp] 8192 kB allocated with handle 0x00000001
(II) RADEON(0): [agp] ring handle = 0xe0000000
(II) RADEON(0): [agp] Ring mapped at 0xb79d0000
(II) RADEON(0): [agp] ring read ptr handle = 0xe0101000
(II) RADEON(0): [agp] Ring read ptr mapped at 0xb7f96000
(II) RADEON(0): [agp] vertex/indirect buffers handle = 0xe0102000
(II) RADEON(0): [agp] Vertex/indirect buffers mapped at 0xa7706000
(II) RADEON(0): [agp] GART texture map handle = 0xe0302000
(II) RADEON(0): [agp] GART Texture map mapped at 0xa7226000
Thanks for the pointers. They got me going in the right direction.
Later,
Jason C. Wells
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