Debian with nvidia GT 640

I still don't install Japanese IME, so let me describe something in English this time..

Though Debian Wiki ( says it is recommended to use Debian way to install nvidia driver, I found it is not suitable to do so with nvidia GT640 when using Debian squeeze, since the driver supported by the system is too old to support the relatively new graphic board. In detail, I saw this error message in kern.log
Jan 16 20:25:29 nagasode kernel: [   11.142760] NVRM: in this system is not supported by the 195.36.31 NVIDIA Linux
("nagasode" is its hostname!)

 195.36.31 is the nvidia driver version. You can see the same version number by using dpkg -l
ii  nvidia-vdpau-driver                      195.36.31-6squeeze2               NVIDIA vdpau driver
For GT 640, "310.19" is the most appropriate one (at this time). To obtain the most suitable driver, you can just visit nvidia's official download page and search for the driver best for your graphic board.

You may rely on the following page to know how to install the newer driver in nvidia way.

After installing the driver, Debian just detected the graphic board, and my WQHD display (2560x2440) is fully functional :-)

More in general, if you (who googled something and found this page) fail to launch X with your awesome new hardware, check /var/log/Xorg.log.0 and possibly /var/log/kern.log.

Totally unrelated, but the original title contained "nvida" instead of "nvidia", which broke this post's URL :-P