Hi here it is:
"LIBGL_DEBUG=verbose glxinfo
name of display: :0.0
libGL: XF86DRIGetClientDriverName: 5.3.0 r200 (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/r200_dri.so
libGL error: dlopen /usr/lib/dri/r200_dri.so failed (/usr/lib/dri/r200_dri.so: undefined symbol: _glapi_tls_Context)
libGL error: unable to load driver: r200_dri.so
display: :0 screen: 0
direct rendering: No (If you want to find out why, try setting LIBGL_DEBUG=verbose)
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:"
This is my Xorg log too:
(==) RADEON(0): Backing store disabled
(II) RADEON(0): [DRI] installation complete
(II) RADEON(0): [drm] Added 32 65536 byte vertex/indirect buffers
(II) RADEON(0): [drm] Mapped 32 vertex/indirect buffers
(II) RADEON(0): [drm] dma control initialized, using IRQ 11
(II) RADEON(0): [drm] Initialized kernel GART heap manager, 5111808
(WW) RADEON(0): DRI init changed memory map, adjusting ...
(WW) RADEON(0): MC_FB_LOCATION was: 0xebffe800 is: 0xebffe800
(WW) RADEON(0): MC_AGP_LOCATION was: 0xffffffc0 is: 0xe07fe000
(II) RADEON(0): RADEONRestoreMemMapRegisters() :
(II) RADEON(0): MC_FB_LOCATION : 0xebffe800 0xebffe800
(II) RADEON(0): MC_AGP_LOCATION : 0xe07fe000
(II) RADEON(0): Direct rendering enabled
(II) RADEON(0): Render acceleration enabled
(II) RADEON(0): Using XFree86 Acceleration Architecture (XAA)
Screen to screen bit blits
Solid filled rectangles
8x8 mono pattern filled rectangles
Indirect CPU to Screen color expansion
Solid Lines
Scanline Image Writes
Setting up tile and stipple cache:
32 128x128 slots
32 256x256 slots
14 512x512 slots
(II) RADEON(0): Acceleration enabled
(II) RADEON(0): DPMS enabled
(==) RADEON(0): Silken mouse enabled
(II) RADEON(0): Using hardware cursor 0 (scanline 1202)
(II) RADEON(0): Using hardware cursor 1 (scanline 1204)
(II) RADEON(0): Largest offscreen area available: 1408 x 4749
(II) RADEON(0): No video input capabilities detected and no information is provided - disabling multimedia i2c
(II) Loading sub module "theatre_detect"
(II) LoadModule: "theatre_detect"
(II) Loading /usr/lib/xorg/modules/multimedia//theatre_detect_drv.so
(II) Module theatre_detect: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 1.0.0
ABI class: X.Org Video Driver, version 2.0
(II) RADEON(0): no multimedia table present, disabling Rage Theatre.
(II) RADEON(0): Set up overlay video
(II) RADEON(0): Textured video disabled on RV250 due to HW bug
(II) RADEON(0): RandR 1.2 enabled, ignore the following RandR disabled message.
(--) RandR disabled
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension XC-APPGROUP
(II) Initializing built-in extension XAccessControlExtension
(II) Initializing built-in extension SECURITY
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFIXES
(II) Initializing built-in extension XFree86-Bigfont
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
(II) Initializing built-in extension XEVIE
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
(EE) AIGLX error: dlopen of /usr/lib/dri/r200_dri.so failed (/usr/lib/dri/r200_dri.so: undefined symbol: _glapi_tls_Context)
(EE) AIGLX: reverting to software rendering
(II) Loading sub module "GLcore"
(II) LoadModule: "GLcore"
(II) Loading /usr/lib/xorg/modules/extensions//libGLcore.so
(II) Module GLcore: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 1.0.0
ABI class: X.Org Server Extension, version 0.3
(II) GLX: Initialized MESA-PROXY GL provider for screen 0
(II) RADEON(0): Setting screen physical size to 370 x 277
Atom 4, CARD32 4, unsigned long 4
[.....]
benoit@mintlab ~ $ locate libGL.so
/usr/lib/libGL.so
/usr/lib/libGL.so.1
/usr/lib/libGL.so.1.2
/usr/lib/fglrx/libGL.so.1.2.xlibmesa
/usr/lib/fglrx/libGL.so.1.xlibmesa
benoit@mintlab ~ $ ldd /usr/X11R6/bin/glxinfo
linux-gate.so.1 => (0xb7fdd000)
libGL.so.1 => /usr/lib/libGL.so.1 (0xb7f52000)
libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb7f2d000)
libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb7ddd000)
libX11.so.6 => /usr/lib/libX11.so.6 (0xb7cf6000)
libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0xb7cde000)
libXext.so.6 => /usr/lib/libXext.so.6 (0xb7cd0000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7cc5000)
/lib/ld-linux.so.2 (0xb7fde000)
libxcb-xlib.so.0 => /usr/lib/libxcb-xlib.so.0 (0xb7cc2000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb7caa000)
libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0xb7ca6000)
libXau.so.6 => /usr/lib/libXau.so.6 (0xb7ca3000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb7c9e000)
$ls -al /usr/lib/libGL.*
benoit@mintlab ~ $ ls -al /usr/lib/libGL*
lrwxrwxrwx 1 root root 16 2008-06-22 01:33 /usr/lib/libGLEW.so.1.5 -> libGLEW.so.1.5.0
-rw-r--r-- 1 root root 225068 2008-02-11 17:48 /usr/lib/libGLEW.so.1.5.0
lrwxrwxrwx 1 root root 10 2008-07-09 23:38 /usr/lib/libGL.so -> libGL.so.1
lrwxrwxrwx 1 root root 12 2008-07-04 23:44 /usr/lib/libGL.so.1 -> libGL.so.1.2
-rw-r--r-- 1 root root 478188 2008-06-11 11:51 /usr/lib/libGL.so.1.2
lrwxrwxrwx 1 root root 20 2008-07-09 23:38 /usr/lib/libGLU.so.1 -> libGLU.so.1.3.070100
-rw-r--r-- 1 root root 532520 2008-07-04 19:38 /usr/lib/libGLU.so.1.3.070100
benoit@mintlab ~ $ ls -al /usr/lib/dri/r*
-rw-r--r-- 1 root root 2132308 2008-07-04 19:38 /usr/lib/dri/r128_dri.so
-rw-r--r-- 1 root root 2199892 2008-07-04 19:38 /usr/lib/dri/r200_dri.so
-rw-r--r-- 1 root root 2233268 2008-07-04 19:38 /usr/lib/dri/r300_dri.so
-rw-r--r-- 1 root root 2167928 2008-07-04 19:38 /usr/lib/dri/radeon_dri.so
I checked and i don't have installed fglrx.
I read those 2 threads but it is not gving an answer to me really.
https://launchpad.net/ubuntu/+source/mesa/+bug/48029
https://answers.launchpad.net/ubuntu/+question/32636
Hope this helps.