With compiz fusion when i play any movie, the audio is there but no video. I have installed compiz using the above howto and installed all the package except for unsupported plugins.
And another problem, I have two virtual desktops enabled, but with compiz it becomes 8.
You need to do some tricks to have the video:
For kaffeine:
*Go to Options>xine engine parameters>video
*select xshm as driver
For MPlayer
* Right click the movie and select Tercihler>Video
* Select (Ximage/shm) here.
Now the video should work as expected.
Compiz doesn't really create 8 virtual desktops. After exitting compiz click 5th desktop and click 1st desktop again. New desktops should disappear after doing that.