Comment 174 for bug 204996

Maybe this'll be helpful:

I've got two laptops running Hardy. They're almost identical -- one's an Lenovo Thinkpad T60p and the other is a Lenovo Thinkpad T60 (no "p").

The T60 has been rock solid with Hardy. No freezes, continued up-time ever since upgrade from Gutsy.
The T60p has been freezing at least once 2 or 3 times per day.

I think there are only minor differences between these machines so maybe it'd be an interesting case study because one is totally fine, but the other freezes all the time. I'm pretty new to Ubuntu/Linux, though, so someone tell me what info you need and I'd be happy to post/attach it here.