Had a problem with blender not working as expected and found a solution? Post them here!
2.69 official release (r61078)
Rendering animation in Cycles will work OK for about the first few frames then will start rendering black frames.
Incredibly inconvenient if you start something rendering overnight.
Errors in console along the lines of:
CUDA error: Unknown CUDA error value in cuModuleGetTexRef<&texref, cuModule, name>
CUDA error: Unknown CUDA error value in cuModuleGetGlobal<&mem, &bytes, cuModule, name>
CUDA error: Unknown CUDA error value in cuMemcpyHtoD<mem, host, size>
Go to Render Settings
Go to “performance”
Make sure “Cache BVH” and “Persistent Images” are unticked
No more black frames and on my computer about a 15% speedup in rendertime…