no CUDA-capable device is available


I succesfully installed cuda toolkit and compiled cuda SDK but when I run “~/NVIDIA_GPU_Computing_SDK/C/bin/linux/release/scan”, I get this message :

cudaSafeCall() Runtime API error in file <>, line 100 : no CUDA-capable device is available.

I’m on ubuntu 9.10 with nVidia 190.42 driver from VDPAU Team PPA (

Any idea?


Please be sure that you have writes to interact with graphics card. give rights to your user to read and write to Graphics Card.

Good Luck :teehee:

That is ls -l /dev/nvidia*

should discover at least two devices (nvidia0 and nvidiactl)

and your user id should have (rw) write access to them

even though they may be owned by root