> Another question, How do I check whether there is a 3D acceleration,
> seems 2D have.
See this...
$glxinfo | grep direct
direct rendering: Yes
GL_EXT_Cg_shader, GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
$
If you get the above "direct rendering: Yes" when using glxinfo
then your 3D acceleration may work.
apt-get install mesa-utils , for glxinfo.
/Jeffrin