On windows, if I allow the system turn the monitors off (due to being idle), about once a week, it will fail to resume. There does not seem to be a pattern to this.
On linux (Arch 64, fully updated running nouveau GPU drivers), the system will crash whenever GNOME is started, usually with a "nouveau failed to idle on channel x" error.
When I try the Nvidia binary driver, my system will arbitrarily freeze. I've posted about this twice on the arch forums but I never get any responses.
I also tried to install Ubuntu 64 (12.10) but I again received a "failed to idle" error when trying to start the live image.
I'm starting to think that this is a hardware issue but I have no idea how to diagnose it or test the hardware in any meaningful way. As much as I would like to at this point, trashing everything and rebuilding the system is out of the question for now...
My system: 4gb ram, Nvidia 9600GSO, Intel i5 1st gen
If you need more specifics, I'll be glad to dig around.