[MPlayer-users] Displaying a video inside another playing video.

[Sebastian]

Doesnt work either. I even tried to have the background video use -vo x11. 
I always get a message like that:

VO: [x11] 128x128 => 227x128 BGRA  [fs] [zoom]
Shared memory not supported
Reverting to normal Xlib

Is that a hardware related item?