Your X server doesn't support YV12 overlays

[TRON98]

Ciao a tutti,
è da un po' di giorni che cerco di ripristinare il supporto YV12 ma senza successo. Nei vari forum non sono riuscito a trovare niente che mi potesse dare una mano. Di seguito riporto la risposta del sistema

master@cray1:~$ xine-check
Please be patient, this script may take a while to run...
[ good ] you're using Linux, doing specific tests
[ good ] looks like you have a /proc filesystem mounted.
[ good ] You seem to have a reasonable kernel version (2.6.15.5)
[ good ] intel compatible processor, checking MTRR support
[ good ] you have MTRR support and there are some ranges set.
[ good ] found the player at /usr/bin/xine
[ good ] /usr/bin/xine is in your PATH
[ hint ] several instances of xine-config found in your PATH
         xine-config executables have been found in these places:
         /usr/bin/xine-config
         /usr/local/bin/xine-config
         This probably means you have several versions of xine-lib installed.
         It's probably best to uninstall all unused xine-libs.
         Further tests will use /usr/bin/xine-config.
         press <enter> to continue...

[ good ] plugin directory /usr/lib/xine/plugins/1.1.1 exists.
[ good ] found unknown plugin: xineplug_flac.so
[ good ] found input plugins
[ good ] found demux plugins
[ good ] found decoder plugins
[ good ] found video_out plugins
[ good ] found audio_out plugins
[ good ] skin directory /usr/share/xine/skins exists.
[ good ] found logo in /usr/share/xine/skins
[ good ] I even found some skins.
[ good ] /dev/cdrom points to /dev/hdd
[ good ] /dev/dvd points to /dev/hdd
[ good ] DMA is enabled for your DVD drive
[ good ] found xvinfo: X-Video Extension version 2.2
[ hint ] Your X server doesn't support YV12 overlays.
         That means xine will have to do color space transformation and scaling
         in software, which is quite CPU intensive. Maybe upgrading your
         X server will help here.
         If you have an ATI card, you'll find accelerated X servers on
         http://www.linuxvideo.org/gatos/
         press <enter> to continue...

Grazie e ciao