Originally Posted by oyvind
[...] For me, the issue started with Ubuntu Lucid kernel 2.6.32-26. Earlier kernels did not have the problem. Also seen on 2.6.35-based kernel. [...]
Of course, I should mention: this isn't necessarily the fault of the nvidia driver, the kernel itself might be the culprit, or perhaps some unfortunate interaction between kernel and the nvidia driver. Anyway, it's a strange and annoying problem. I haven't really been able to check if more recent nvidia drivers resolve this problem, as they are too unstable after resume (problem with long hangs and ominous NVRM errors).