cuda 3.0 with xinerama CUDA_ERROR_UNKNOWN

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

Two monitors on one 8800 GTX with Xinerama and kernel 2.6.33.1. If I run driver 195.36.15 and the cuda 3.0 toolkit, there is a CUDA_UNKNOWN_ERROR at cuGLCtxCreate.

Without xinerama, it works. Verified on another computer using 8800 GT.

The beta cuda driver 195.17 with kernel 2.6.32 worked.

I had a similar problem once with two graphics cards, and it turned out to be one card was malfunctioning. But this seems to be another problem.
Does anyone have a working Xinerama cuda 3.0 interop program?

2

In the meantime, I reverted back to the following setup that works:
Driver 195.17
kernel 2.6.32.10
cuda toolkit cudatoolkit_3.0_linux_64_ubuntu9.04.run

Something may have happened between cuda beta driver 195.17 and 195.36.15 that caused a regression with xinerama and cuda gl interop.

edit: typo

3

Switched to Twinview and the latest cuda driver and it seems to be functioning. Probably not going to use xinerama anymore.