As it seems nobody is too interested in this driver and gpu anymore.

I would like to share some experience though for those who might need
it.

Apart from all the above information, even though the video is reported 
incorrectly as gallium 0.4 on llvmpipe (llvm 0x300) the 2d acceleration works 
ALMOST satisfactory under Ubuntu 12.04 (with older generic kernels).
Some videos drop frames. I suppose the reason is difference in the support for 
different codecs.

Youtube works very bad. Same for vimeo.
However youtube is quite OK if played through VLC player with the help of 
Youtube video and playlist importer  - 
http://addons.videolan.org/content/show.php/+Youtube+playlist+importer?content=149909.

My overall opinion is that intel d2700dc board with (I believe) GMA 3650  GPU 
is NOT a good board if you plan to use it as video playing device under linux.
As the hardware is not in production anymore this is unlikely to change.

For all of you who think that the traditionally good Intel linux support 
warrants flawless performance under Ubuntu and there is no need to check if the 
specific hardware is well supported - think again :)
I did this mistake and won't repeat it for any manufacturer from now on.

It is a bit sad that after all these years and the progress linux made
both in terms of usability for the ordinary user and popularity, the
driver support for big number of hardware is sub par.

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https://bugs.launchpad.net/bugs/1132584

Title:
  cedarview-drm kernel module fails to build on kernel 3.5.x [error:
  implicit declaration of function 'do_mmap']

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