Have a 5850 on squeeze and using the open source drivers installed with apt. DRM works but GLX defaults to sofware rendering.

/var/log/Xorg.0.log:

X.Org X Server 1.7.7
Release Date: 2010-05-04
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.32.29-dsa-ia32 i686 Debian
Current Operating System: Linux debian 2.6.32-5-686 #1 SMP Mon Jun 13 04:13:06 UTC 2011 i686
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-686 root=UUID=2713618b-238c-4c04-b00d-3acc1eddd0a4 ro quiet
Build Date: 19 February 2011  02:37:36PM
xorg-server 2:1.7.7-13 (Cyril Brulebois <kibi@debian.org>) 
Current version of pixman: 0.16.4
    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Jul 23 19:51:12 2011
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(==) No Layout section.  Using the first Screen section.
(==) No screen section available. Using defaults.
(**) |-->Screen "Default Screen Section" (0)
(**) |   |-->Monitor "<default monitor>"
(==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
    Entry deleted from font path.
(==) FontPath set to:
    /usr/share/fonts/X11/misc,

    built-ins
(==) ModulePath set to "/usr/lib/xorg/modules"
(II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
(II) Loader magic: 0x81ecca0
(II) Module ABI versions:
    X.Org ANSI C Emulation: 0.4
    X.Org Video Driver: 6.0
    X.Org XInput driver : 7.0
    X.Org Server Extension : 2.0
(++) using VT number 7

(--) PCI:*(0:1:0:0) 1002:6899:174b:e140 ATI Technologies Inc Cypress [Radeon HD 5800 Series] rev 0, Mem @ 0xe0000000/268435456, 0xf5000000/131072, I/O @ 0x0000b000/256, BIOS @ 0x????????/131072
(II) Open ACPI successful (/var/run/acpid.socket)
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.0.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension SELinux
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "dbe"
(II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.0.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.0.0
    ABI class: X.Org Server Extension, version 2.0
(==) AIGLX enabled
(II) Loading extension GLX
(II) LoadModule: "record"
(II) Loading /usr/lib/xorg/modules/extensions/librecord.so
(II) Module record: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.13.0
    Module class: X.Org Server Extension
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension RECORD
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions/libdri.so
(II) Module dri: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.0.0
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension XFree86-DRI
(II) LoadModule: "dri2"
(II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.1.0
    ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(==) Matched ati as autoconfigured driver 0
(==) Matched vesa as autoconfigured driver 1
(==) Matched fbdev as autoconfigured driver 2
(==) Assigned the driver to the xf86ConfigLayout
(II) LoadModule: "ati"
(II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
(II) Module ati: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 6.13.1
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "radeon"
(II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
(II) Module radeon: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 6.13.1
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "vesa"
(II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
(II) Module vesa: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 2.3.0
    Module class: X.Org Video Driver
    ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "fbdev"
(II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
(II) Module fbdev: vendor="X.Org Foundation"
    compiled for 1.7.6.901, module version = 0.4.2
    ABI class: X.Org Video Driver, version 6.0
(II) RADEON: Driver for ATI Radeon chipsets:
...     
    ATI Radeon HD 4290, ATI Radeon HD 4290, CYPRESS,
...
(II) VESA: driver for VESA chipsets: vesa
(II) FBDEV: driver for framebuffer: fbdev
(II) Primary Device is: PCI 01@00:00:0
(II) [KMS] Kernel modesetting enabled.
(WW) Falling back to old probe method for vesa
(WW) Falling back to old probe method for fbdev
(II) Loading sub module "fbdevhw"
(II) LoadModule: "fbdevhw"
(II) Loading /usr/lib/xorg/modules/linux/libfbdevhw.so
(II) Module fbdevhw: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 0.0.2
    ABI class: X.Org Video Driver, version 6.0
(II) RADEON(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
(==) RADEON(0): Depth 24, (--) framebuffer bpp 32
(II) RADEON(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
(==) RADEON(0): Default visual is TrueColor
(==) RADEON(0): RGB weight 888
(II) RADEON(0): Using 8 bits per RGB (8 bit DAC)
(--) RADEON(0): Chipset: "ATI Radeon HD 5800 Series" (ChipID = 0x6899)
(II) RADEON(0): PCIE card detected
(WW) RADEON(0): Color tiling is not yet supported on R600/R700
(II) RADEON(0): KMS Color Tiling: disabled
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenByBusid: drmOpenMinor returns 9
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
(II) RADEON(0): Output DisplayPort-0 has no monitor section
(II) RADEON(0): Output HDMI-0 has no monitor section
(II) RADEON(0): Output DVI-0 has no monitor section
(II) RADEON(0): Output DVI-1 has no monitor section
(II) RADEON(0): EDID for output DisplayPort-0
(II) RADEON(0): EDID for output HDMI-0
(II) RADEON(0): EDID for output DVI-0
(II) RADEON(0): Manufacturer: SAM  Model: 598  Serial#: 1129132345
(II) RADEON(0): Year: 2009  Week: 39
(II) RADEON(0): EDID Version: 1.3
(II) RADEON(0): Analog Display Input,  Input Voltage Level: 0.700/0.300 V
(II) RADEON(0): Sync:  Separate  Composite  SyncOnGreen
(II) RADEON(0): Max Image Size [cm]: horiz.: 41  vert.: 23
(II) RADEON(0): Gamma: 2.20
(II) RADEON(0): DPMS capabilities: Off; RGB/Color Display
(II) RADEON(0): First detailed timing is preferred mode
(II) RADEON(0): redX: 0.649 redY: 0.334   greenX: 0.283 greenY: 0.610
(II) RADEON(0): blueX: 0.146 blueY: 0.081   whiteX: 0.312 whiteY: 0.329
(II) RADEON(0): Supported established timings:
(II) RADEON(0): 720x400@70Hz
(II) RADEON(0): 640x480@60Hz
(II) RADEON(0): 640x480@67Hz
(II) RADEON(0): 640x480@72Hz
(II) RADEON(0): 640x480@75Hz
(II) RADEON(0): 800x600@56Hz
(II) RADEON(0): 800x600@60Hz
(II) RADEON(0): 800x600@72Hz
(II) RADEON(0): 800x600@75Hz
(II) RADEON(0): 832x624@75Hz
(II) RADEON(0): 1024x768@60Hz
(II) RADEON(0): 1024x768@70Hz
(II) RADEON(0): 1024x768@75Hz
(II) RADEON(0): Manufacturer's mask: 0
(II) RADEON(0): Supported detailed timing:
(II) RADEON(0): clock: 85.5 MHz   Image Size:  410 x 230 mm
(II) RADEON(0): h_active: 1360  h_sync: 1424  h_sync_end 1536 h_blank_end 1792 h_border: 0
(II) RADEON(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 795 v_border: 0
(II) RADEON(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 61 kHz, PixClock max 95 MHz
(II) RADEON(0): Monitor name: SyncMaster
(II) RADEON(0): Serial No: HMDS908408
(II) RADEON(0): EDID (in hex):
(II) RADEON(0):     00ffffffffffff004c2d980539314d43
(II) RADEON(0):     271301030e2917782a6971a655489c25
(II) RADEON(0):     145054bfee0001010101010101010101
(II) RADEON(0):     010101010101662150b051001b304070
(II) RADEON(0):     36009ae61000001e000000fd00384b1e
(II) RADEON(0):     3d09000a202020202020000000fc0053
(II) RADEON(0):     796e634d61737465720a2020000000ff
(II) RADEON(0):     00484d44533930383430380a2020000f
(II) RADEON(0): Printing probed modes for output DVI-0
...
(II) RADEON(0): Printing probed modes for output DVI-1
...
(II) RADEON(0): Output DisplayPort-0 disconnected
(II) RADEON(0): Output HDMI-0 disconnected
(II) RADEON(0): Output DVI-0 connected
(II) RADEON(0): Output DVI-1 connected
(II) RADEON(0): Using exact sizes for initial modes
(II) RADEON(0): Output DVI-0 using initial mode 1360x768
(II) RADEON(0): Output DVI-1 using initial mode 1360x768
(II) RADEON(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
(II) RADEON(0): mem size init: gart size :1feff000 vram size: s:10000000 visible:fba0000
(II) RADEON(0): EXA: Driver will allow EXA pixmaps in VRAM
(==) RADEON(0): DPI set to (96, 96)
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules/libfb.so
(II) Module fb: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.0.0
    ABI class: X.Org ANSI C Emulation, version 0.4
(II) Loading sub module "ramdac"
(II) LoadModule: "ramdac"
(II) Module "ramdac" already built-in
(II) RADEON(0): GPU accel disabled or not working, using shadowfb for KMS
(II) Loading sub module "shadow"
(II) LoadModule: "shadow"
(II) Loading /usr/lib/xorg/modules/libshadow.so
(II) Module shadow: vendor="X.Org Foundation"
    compiled for 1.7.7, module version = 1.1.0
    ABI class: X.Org ANSI C Emulation, version 0.4
(II) UnloadModule: "vesa"
(II) Unloading /usr/lib/xorg/modules/drivers/vesa_drv.so
(II) UnloadModule: "fbdev"
(II) Unloading /usr/lib/xorg/modules/drivers/fbdev_drv.so
(II) UnloadModule: "fbdevhw"
(II) Unloading /usr/lib/xorg/modules/linux/libfbdevhw.so
(--) Depth 24 pixmap format is 32 bpp
(II) RADEON(0): Front buffer size: 4608K
(II) RADEON(0): VRAM usage limit set to 227750K
(==) RADEON(0): Backing store disabled
(WW) RADEON(0): Direct rendering disabled
(II) RADEON(0): Acceleration disabled
(==) RADEON(0): DPMS enabled
(==) RADEON(0): Silken mouse enabled
(II) RADEON(0): RandR 1.2 enabled, ignore the following RandR disabled message.
(--) RandR disabled
(II) Initializing built-in extension Generic Event Extension
(II) Initializing built-in extension SHAPE
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension BIG-REQUESTS
(II) Initializing built-in extension SYNC
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension XC-MISC
(II) Initializing built-in extension SECURITY
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFIXES
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
SELinux: Disabled on system, not enabling in X server
(II) AIGLX: Screen 0 is not DRI2 capable
(II) AIGLX: Screen 0 is not DRI capable
(II) AIGLX: Loaded and initialized /usr/lib/dri/swrast_dri.so
(II) GLX: Initialized DRISWRAST GL provider for screen 0
(II) RADEON(0): Setting screen physical size to 359 x 203
(II) config/udev: Adding input device Power Button (/dev/input/event3)
(**) Power Button: Applying InputClass "evdev keyboard catchall"
(II) LoadModule: "evdev"
(II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
(II) Module evdev: vendor="X.Org Foundation"
    compiled for 1.7.6.901, module version = 2.3.2
    Module class: X.Org XInput Driver
    ABI class: X.Org XInput driver, version 7.0
(**) Power Button: always reports core events
(**) Power Button: Device: "/dev/input/event3"
(II) Power Button: Found keys
(II) Power Button: Configuring as keyboard
(II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "gb"
(II) config/udev: Adding input device Power Button (/dev/input/event2)
(**) Power Button: Applying InputClass "evdev keyboard catchall"
(**) Power Button: always reports core events
(**) Power Button: Device: "/dev/input/event2"
(II) Power Button: Found keys
(II) Power Button: Configuring as keyboard
(II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "gb"
(II) config/udev: Adding input device Twin USB Joystick (/dev/input/event5)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device Twin USB Joystick (/dev/input/js0)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device Twin USB Joystick (/dev/input/event6)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device Twin USB Joystick (/dev/input/js1)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device PHILIPS PHILIPS VOIP080 (/dev/input/event1)
(**) PHILIPS PHILIPS VOIP080: Applying InputClass "evdev keyboard catchall"
(**) PHILIPS PHILIPS VOIP080: always reports core events
(**) PHILIPS PHILIPS VOIP080: Device: "/dev/input/event1"
(II) PHILIPS PHILIPS VOIP080: Found keys
(II) PHILIPS PHILIPS VOIP080: Configuring as keyboard
(II) XINPUT: Adding extended input device "PHILIPS PHILIPS VOIP080" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "gb"
(II) config/udev: Adding input device HDA Digital PCBeep (/dev/input/event8)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event0)
(**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall"
(**) AT Translated Set 2 keyboard: always reports core events
(**) AT Translated Set 2 keyboard: Device: "/dev/input/event0"
(II) AT Translated Set 2 keyboard: Found keys
(II) AT Translated Set 2 keyboard: Configuring as keyboard
(II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "gb"
(II) config/udev: Adding input device ImPS/2 Generic Wheel Mouse (/dev/input/event7)
(**) ImPS/2 Generic Wheel Mouse: Applying InputClass "evdev pointer catchall"
(**) ImPS/2 Generic Wheel Mouse: always reports core events
(**) ImPS/2 Generic Wheel Mouse: Device: "/dev/input/event7"
(II) ImPS/2 Generic Wheel Mouse: Found 3 mouse buttons
(II) ImPS/2 Generic Wheel Mouse: Found scroll wheel(s)
(II) ImPS/2 Generic Wheel Mouse: Found relative axes
(II) ImPS/2 Generic Wheel Mouse: Found x and y relative axes
(II) ImPS/2 Generic Wheel Mouse: Configuring as mouse
(**) ImPS/2 Generic Wheel Mouse: YAxisMapping: buttons 4 and 5
(**) ImPS/2 Generic Wheel Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
(II) XINPUT: Adding extended input device "ImPS/2 Generic Wheel Mouse" (type: MOUSE)
(II) ImPS/2 Generic Wheel Mouse: initialized for relative axes.
(II) config/udev: Adding input device ImPS/2 Generic Wheel Mouse (/dev/input/mouse0)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device PC Speaker (/dev/input/event4)
(II) No input driver/identifier specified (ignoring)
(II) RADEON(0): Allocate new frame buffer 2384x768 stride 2432
(II) RADEON(0): VRAM usage limit set to 225331K

glxinfo:

name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
    GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, 
    GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method, 
    GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe, 
    GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
    GLX_MESA_copy_sub_buffer
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory, 
    GLX_MESA_copy_sub_buffer, GLX_MESA_swap_control, 
    GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_OML_sync_control, 
    GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync, 
    GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
    GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap
GLX version: 1.2
GLX extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method, 
    GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer
OpenGL vendor string: Mesa Project
OpenGL renderer string: Software Rasterizer
OpenGL version string: 2.1 Mesa 7.7.1
OpenGL shading language version string: 1.20
OpenGL extensions:
    GL_EXT_compiled_vertex_array, GL_EXT_texture_env_add, GL_ARB_copy_buffer, 
    GL_ARB_depth_texture, GL_ARB_depth_clamp, GL_ARB_draw_buffers, 
    GL_ARB_draw_elements_base_vertex, GL_ARB_fragment_program, 
    GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader, 
    GL_ARB_framebuffer_object, GL_ARB_half_float_pixel, GL_ARB_imaging, 
    GL_ARB_map_buffer_range, GL_ARB_multisample, GL_ARB_multitexture, 
    GL_ARB_occlusion_query, GL_ARB_pixel_buffer_object, 
    GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_provoking_vertex, 
    GL_ARB_shader_objects, GL_ARB_shading_language_100, 
    GL_ARB_shading_language_120, GL_ARB_shadow, GL_ARB_shadow_ambient, 
    GL_ARB_sync, GL_ARB_texture_border_clamp, GL_ARB_texture_compression, 
    GL_ARB_texture_cube_map, GL_ARB_texture_env_add, 
    GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, 
    GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat, 
    GL_ARB_texture_non_power_of_two, GL_ARB_texture_rectangle, 
    GL_ARB_transpose_matrix, GL_ARB_vertex_array_bgra, 
    GL_ARB_vertex_array_object, GL_ARB_vertex_buffer_object, 
    GL_ARB_vertex_program, GL_ARB_vertex_shader, GL_ARB_window_pos, 
    GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color, 
    GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate, 
    GL_EXT_blend_logic_op, GL_EXT_blend_minmax, GL_EXT_blend_subtract, 
    GL_EXT_convolution, GL_EXT_copy_texture, GL_EXT_depth_bounds_test, 
    GL_EXT_draw_range_elements, GL_EXT_framebuffer_blit, 
    GL_EXT_framebuffer_multisample, GL_EXT_framebuffer_object, 
    GL_EXT_fog_coord, GL_EXT_gpu_program_parameters, GL_EXT_histogram, 
    GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil, 
    GL_EXT_packed_pixels, GL_EXT_paletted_texture, GL_EXT_pixel_buffer_object, 
    GL_EXT_point_parameters, GL_EXT_polygon_offset, GL_EXT_provoking_vertex, 
    GL_EXT_rescale_normal, GL_EXT_secondary_color, 
    GL_EXT_separate_specular_color, GL_EXT_shadow_funcs, 
    GL_EXT_shared_texture_palette, GL_EXT_stencil_two_side, 
    GL_EXT_stencil_wrap, GL_EXT_subtexture, GL_EXT_texture, GL_EXT_texture3D, 
    GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp, 
    GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3, 
    GL_EXT_texture_lod_bias, GL_EXT_texture_mirror_clamp, 
    GL_EXT_texture_object, GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, 
    GL_EXT_texture_swizzle, GL_EXT_vertex_array, GL_EXT_vertex_array_bgra, 
    GL_3DFX_texture_compression_FXT1, GL_APPLE_packed_pixels, 
    GL_APPLE_vertex_array_object, GL_ATI_blend_equation_separate, 
    GL_ATI_envmap_bumpmap, GL_ATI_texture_env_combine3, 
    GL_ATI_texture_mirror_once, GL_ATI_fragment_shader, 
    GL_ATI_separate_stencil, GL_IBM_multimode_draw_arrays, 
    GL_IBM_rasterpos_clip, GL_IBM_texture_mirrored_repeat, 
    GL_INGR_blend_func_separate, GL_MESA_pack_invert, GL_MESA_resize_buffers, 
    GL_MESA_texture_array, GL_MESA_ycbcr_texture, GL_MESA_window_pos, 
    GL_NV_blend_square, GL_NV_depth_clamp, GL_NV_fragment_program, 
    GL_NV_fragment_program_option, GL_NV_light_max_exponent, 
    GL_NV_packed_depth_stencil, GL_NV_point_sprite, 
    GL_NV_texture_env_combine4, GL_NV_texture_rectangle, 
    GL_NV_texgen_reflection, GL_NV_vertex_program, GL_NV_vertex_program1_1, 
    GL_OES_read_format, GL_SGI_color_matrix, GL_SGI_color_table, 
    GL_SGI_texture_color_table, GL_SGIS_generate_mipmap, 
    GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp, 
    GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays
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Upgrading to wheezy fixed dri – typist Jul 24 '11 at 13:12
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