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I had the same problem with the ati-driver. When I installed the driver the first time it woks correct.
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: Radeon 9600 Athlon (3DNow!)
OpenGL version string: 1.3 (X4.3.0-3.2.8)
After I made some changes to the kernel-modules X loaded the MESA driver. Also recompiling the fglrx-module didn't work. I uninstalled the ati-package and deleted the path /lib/modules/fglrx. After a new installation it works.
# glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
client glx vendor string: ATI
client glx version string: 1.3
client glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context,
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_ATI_pixel_format_float,
GLX_ATI_render_texture
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.3 Mesa 4.0.4
OpenGL extensions:
GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_texture_border_clamp,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3,
GL_ARB_transpose_matrix, GL_EXT_abgr, GL_EXT_blend_color,
GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_texture_env_add,
GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
GL_EXT_texture_lod_bias
glu version: 1.3
glu extensions:
GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess
visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
0x23 24 tc 1 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 1 0 None
0x24 24 tc 1 24 0 r y . 8 8 8 0 0 16 8 16 16 16 0 1 0 None
0x25 24 tc 1 24 0 r y . 8 8 8 8 0 16 8 16 16 16 16 1 0 None
0x26 24 tc 1 24 0 r . . 8 8 8 8 0 16 8 16 16 16 16 1 0 None
0x27 24 dc 1 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 1 0 None
0x28 24 dc 1 24 0 r y . 8 8 8 0 0 16 8 16 16 16 0 1 0 None
0x29 24 dc 1 24 0 r y . 8 8 8 8 0 16 8 16 16 16 16 1 0 None
0x2a 24 dc 1 24 0 r . . 8 8 8 8 0 16 8 16 16 16 16 1 0 None
root@Joe:/lib/modules# lsmod
Module Size Used by Tainted: P
fglrx 172488 0
soundcore 3844 0 (autoclean)
root@Joe:/lib/modules# dmesg
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected NVIDIA nForce2 chipset
agpgart: AGP aperture is 256M @ 0xb0000000
hub.c: new USB device 00:02.1-1, assigned address 2
printer.c: usblp0: USB Bidirectional printer dev 2 if 0 alt 0 proto 2 vid 0x03F0 pid 0x0517
hub.c: new USB device 00:02.1-2, assigned address 3
input: USB HID v1.10 Joystick [Microsoft SideWinder Joystick] on usb3:3.0
hub.c: new USB device 00:02.0-1, assigned address 2
input: USB HID v1.10 Mouse [Logitech USB Receiver] on usb2:2.0
hub.c: new USB device 00:02.0-2, assigned address 3
usb.c: USB device 3 (vend/prod 0x451/0xe001) is not claimed by any active driver.
eth1: no link during initialization.
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
Fire GL built-in AGP-support
Based on agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected nVidia nForce2 chipset
agpgart: Bridge device is in AGP v1/v2 mode
agpgart: AGP aperture is 256M @ 0xb0000000
Power management callback for AGP chipset installed
[fglrx] AGP detected, AgpState = 0x00000000 (hardware caps of chipset)
[fglrx:firegl_unlock] *ERROR* Process 754 using kernel context 0
[fglrx:drm_ioremapfree] *ERROR* [mappings] Attempt to free NULL pointer
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
Fire GL built-in AGP-support
Based on agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected nVidia nForce2 chipset
agpgart: Bridge device is in AGP v1/v2 mode
agpgart: AGP aperture is 256M @ 0xb0000000
Power management callback for AGP chipset installed
[fglrx] AGP detected, AgpState = 0x00000000 (hardware caps of chipset)
[fglrx:firegl_unlock] *ERROR* Process 2016 using kernel context 0
[fglrx:drm_ioremapfree] *ERROR* [mappings] Attempt to free NULL pointer
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] module unloaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
[fglrx] Maximum main memory to use for locked dma buffers: 803 MBytes.
[fglrx] module loaded - fglrx 3.2.8 [Sep 21 2003] on minor 0
Fire GL built-in AGP-support
Based on agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 816M
agpgart: Detected nVidia nForce2 chipset
agpgart: Bridge device is in AGP v1/v2 mode
agpgart: AGP aperture is 256M @ 0xb0000000
Power management callback for AGP chipset installed
[fglrx] AGP detected, AgpState = 0x00000000 (hardware caps of chipset)
[fglrx:firegl_unlock] *ERROR* Process 23854 using kernel context 0
[fglrx:drm_ioremapfree] *ERROR* [mappings] Attempt to free NULL pointer
Maybe the problem is, that the agpgart module was not load into your kernel. Did you compile it as a kernel module? If so, look to /etc/rc.d/rc.modules and check, that /sbin/modprobe agpgart is activatet. This is my lsmod:
Module Size Used by Tainted: P
serial 46564 0 (autoclean) (unused)
parport_pc 13476 0 (autoclean)
parport 13408 0 (autoclean) [parport_pc]
nvnet 25664 2
i810_audio 22824 0
ac97_codec 13448 0 [i810_audio]
sound 57492 0 (unused)
soundcore 3652 4 [i810_audio sound]
fglrx 172456 156
ide-scsi 10192 0
agpgart 15208 19
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