linux user group brescia

Non sò cosa sia cambiato, ma adesso non mi partono più quelle
applicazioni che richiedono glx:
p.es, lanciando tuxracer:

Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
*** tuxracer error: Couldn't initialize video: Couldn't find matching
GLX visual (Success)

che in /etc/X11/XF86Config ci sono:

Section "Module"

        # Load  "record"        # X event recorder
        # You only need the following two modules if you do not use xfs.
        # Load  "dri"           # Direct rendering infrastructure
        Load  "freetype"         # TrueType font handler
        Load  "type1"           # Adobe Type 1 font handler
        Load  "dbe"             # Double-buffering
        Load  "GLcore"          # OpenGL support
        Load  "glx"             # OpenGL X protocol interface
        Load  "extmod"          # Misc. required extensions
        Load  "v4l"             # Video4Linux


Gracias
daniel