Re: Bug Report: Hard crash (freeze) with nVidia GTX 460
It may be an hardware error, but it is then probably present on *all* 460 GPUs (mondragor tried replacing his card, replacement exhibited the same behavior); what I mean is that is not related to a particular, faulty, card.
I only ran Video Memory Stress so far (on Windows). I can try the others you mentionned, but not sure it will give some results; the problem is definitely hard to reproduce.
I do agree that the fact that it does not crash under Nouveau may come from Nouveau not fully using the card (no 3D etc).