Pues tengo errores. Esto es lo que he hecho yo, alguien sabe qué pasa? Igualmente el Beryl Manager me funciona, pero Beryl no va ningún efecto, además de no verse los marcos de ventanas y botones:
parrimin@MIN-UBUNTU-DESKTOP:~$ sudo apt-get install xserver-xgl beryl beryl-core beryl-plugins beryl-plugins-unsupported emerald emerald-themes beryl-settings beryl-manager beryl-settings-bindings
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias
Leyendo información de estado... Hecho
Tal vez quiera ejecutar `apt-get -f install' para corregirlo:
Los siguientes paquetes tienen dependencias incumplidas:
xserver-xgl: Depende: libglitz-glx1 pero no va a instalarse
Depende: libglitz1 (>= 0.4.3+cvs20050728) pero no va a instalarse
E: Dependencias incumplidas. Intente 'apt-get -f install' sin paquetes (o especifique una solución).
parrimin@MIN-UBUNTU-DESKTOP:~$ sudo apt-get -f install
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias
Leyendo información de estado... Hecho
Corrigiendo dependencias... Listo
Se instalarán los siguientes paquetes extras:
beryl-plugins-unsupported
Se instalarán los siguientes paquetes NUEVOS:
beryl-plugins-unsupported
0 actualizados, 1 se instalarán, 0 para eliminar y 23 no actualizados.
1 no instalados del todo o eliminados.
Necesito descargar 46,1kB de archivos.
Se utilizarán 176kB de espacio de disco adicional después de desempaquetar.
¿Desea continuar [S/n]? s
Des:1 http://download.tuxfamily.org feisty/eyecandy beryl-plugins-unsupported 0.3.0+git20070323~3v1ubuntu4 [46,1kB]
Descargados 46,1kB en 0s (79,1kB/s)
(Leyendo la base de datos ...
109933 ficheros y directorios instalados actualmente.)
Desempaquetando beryl-plugins-unsupported (de .../beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb) ...
dpkg: error al procesar /var/cache/apt/archives/beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb (--unpack):
intentando sobreescribir `/usr/lib/beryl/libplane.so', que está también en el paquete beryl-plugins-nonfree
Se encontraron errores al procesar:
/var/cache/apt/archives/beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
parrimin@MIN-UBUNTU-DESKTOP:~$ beryl-manager
parrimin@MIN-UBUNTU-DESKTOP:~$ Advertencia del gestor de ventanas: Se ha perdido la conexión con la pantalla «:0.0»;
parece que el servidor X fue apagado o que usted ha matado o destruido el gestor de ventanas.
**************************************************************
* Beryl system compatiblity check *
**************************************************************

Detected xserver : NVIDIA

Checking Display :0.0 ...

Checking for XComposite extension : passed (v0.3)
Checking for XDamage extension : passed
Checking for RandR extension : passed
Checking for XSync extension : passed

Checking Screen 0 ...

Checking for GLX_SGIX_fbconfig : passed
Checking for GLX_EXT_texture_from_pixmap : passed
Checking for non power of two texture support : passed
Checking maximum texture size : passed (4096x4096)

Relaunching beryl with __GL_YIELD="NOTHING"
**************************************************************
* Beryl system compatiblity check *
**************************************************************

Detected xserver : NVIDIA

Checking Display :0.0 ...

Checking for XComposite extension : passed (v0.3)
Checking for XDamage extension : passed
Checking for RandR extension : passed
Checking for XSync extension : passed

Checking Screen 0 ...

Checking for GLX_SGIX_fbconfig : passed
Checking for GLX_EXT_texture_from_pixmap : passed
Checking for non power of two texture support : passed
Checking maximum texture size : passed (4096x4096)

libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libanimation.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/lib3d.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libcrashhandler.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libannotate.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libbench.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libblurfx.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libclone.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libdecoration.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libcube.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libinputzoom.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libfade.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libgroup.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libresize.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libmove.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libneg.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libplace.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libplane.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libpng.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libput.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libscreenshot.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/librotate.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libscale.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libshowdesktop.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libtrailfocus2.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libsplash.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libsnow.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libswitcher.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libstate.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libsvg.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libdbus.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libwater.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libwobbly.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libzoom.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libopacify.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libcapture.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libdebug.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libwallpaper.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libtile.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libsnap.so' plugin
libberylsettings: Couldn't get vtable from '/usr/lib/beryl/libthumbnail.so' plugin
Reloading options

Display all 199 possibilities? (y or n)
parrimin@MIN-UBUNTU-DESKTOP:~$ sudo apt-get -f install
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias
Leyendo información de estado... Hecho
Corrigiendo dependencias... Listo
Se instalarán los siguientes paquetes extras:
beryl-plugins-unsupported
Se instalarán los siguientes paquetes NUEVOS:
beryl-plugins-unsupported
0 actualizados, 1 se instalarán, 0 para eliminar y 23 no actualizados.
1 no instalados del todo o eliminados.
Se necesita descargar 0B/46,1kB de archivos.
Se utilizarán 176kB de espacio de disco adicional después de desempaquetar.
¿Desea continuar [S/n]? s
(Leyendo la base de datos ...
109933 ficheros y directorios instalados actualmente.)
Desempaquetando beryl-plugins-unsupported (de .../beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb) ...
dpkg: error al procesar /var/cache/apt/archives/beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb (--unpack):
intentando sobreescribir `/usr/lib/beryl/libplane.so', que está también en el paquete beryl-plugins-nonfree
Se encontraron errores al procesar:
/var/cache/apt/archives/beryl-plugins-unsupported_0.3.0+git20070323~3v1ubuntu4_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Si me he pasado, y no debo poner esto aquí, puedes quitarlo, y me dices q me vaya a otro lado, lo entenderé.

Gracias de todos modos