Comment 125 for bug 111257

@radicaledward: If you are willing to turn compiz off, you can use EXA with x3100 to play accelerated videos so that xine,mplayer,totem etc all work (at least it works for me in an Inspiron 1720):
Just add 'Option "accelmethod" "exa"' in your xorg.conf's gm965 Device section. Make sure all other options but DRI are commented out, since exa does not currently like e.g. pageflip, cacheline and other options. e.g.
Section "Device"
        Identifier "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller"
        Driver "intel"
        BusID "PCI:0:2:0"
        Option "DRI" "true"
        Option "AccelMethod" "exa"
EndSection