I have the latest version of Blender installed (2.69) on Debian stable, and in System Preferences there is no CUDA (GPU) option for compute device. The graphics card is Nvidia GeForce 430. It supports CUDA 2.1, so according to the wiki it should work. Looks like the Nvidia driver is at the newest version. Is it a bug or am I missing something?
Update: Still no answer. I've looked into the driver more: it's the most recent repository version, but the driver on the Nvidia website is newer (mine is 304.88, theirs is 331.38). Does anybody run Blender on Linux with Nvidia drivers from repository (not nouveau but the manufacturer drivers)?
P.S. I've seen a couple other threads with a similar question but in one the problem was resolved when Blender v.2.69 was installed and in another the card in question was explicitly among the ones no longer supported.