Add:

Section "Extensions"
Option "Composite" "Disable"
EndSection

To xorg.conf

Install alsa & alsamixer
sudo aptitude install linux-ubuntu-modules-`uname -r` linux-generic
and restart

The nvidia driver I'm using does not have glXGetProcAddress (is this the same for all of them?), rather it is replaced by glXGetProcAddressARB.

There is a solution documented here: http://xbmc.org/forum/showpost.php?p=248010&postcount=55

You can write a wrapper which wraps glXGetProcAddress() to glXGetProcAddressARB().

Save the following as libwrap_gl.c

/** Wrapper to map glXGetProcAddress() to glXGetProcAddressARB()
  *
  * Compile : gcc -fPIC -shared -o libwrap_gl.so libwrap_gl.c
  * Usage   : LD_PRELOAD="/path/to/libwrap_gl.so" <executable>
  **/
#define _GNU_SOURCE
 
extern void* glXGetProcAddressARB (const unsigned char*);
 
void* glXGetProcAddress (const unsigned char *procName)
{
        return (glXGetProcAddressARB (procName));
}

Open a terminal and compile it with:

gcc -fPIC -shared -o libwrap_gl.so libwrap_gl.c

Preload the library and start xbmc with:

LD_PRELOAD=”./libwrap_gl.so” /usr/bin/xbmc

For this to work, libwrap_gl.so has to be in the current directory. For a more permanent solution you can copy libwrap_gl.so to /usr/lib/.

Then edit /usr/bin/xbmc and change the line:

exec /usr/share/xbmc/xbmc.bin $*

to:

LD_PRELOAD="/usr/lib/libwrap_gl.so" /usr/share/xbmc/xbmc.bin $*
Temar