The XvMC-supporting branch of the intel driver was recently merged[1] into driver version 2.2.99.901. It should work on the 945 chipset, but not the 810. Note that it's not in the repository for Hardy or Intrepid at this point; you'll have to compile your own or just wait at this point. Also, the initial announcement[2] says to use "libIntelXvMC.so" in XvMCConfig.
The XvMC-supporting branch of the intel driver was recently merged[1] into driver version 2.2.99.901. It should work on the 945 chipset, but not the 810. Note that it's not in the repository for Hardy or Intrepid at this point; you'll have to compile your own or just wait at this point. Also, the initial announcement[2] says to use "libIntelXvMC.so" in XvMCConfig.
[1] http:// lists.freedeskt op.org/ archives/ xorg-announce/ 2008-March/ 000528. html lists.freedeskt op.org/ archives/ xorg/2007- December/ 031496. html
[2] http://