Originally Posted by rockob
If you are still getting lockups, it might be worth checking out https://bugs.launchpad.net/ubuntu/+s...rs/+bug/973096
, which I think is about what you're seeing. It is marked fixed there because some people stopped getting the lockups when 304.37/43 was released, but I have found the 304 series to be much less stable than earlier releases.
304.43 is too unstable here, but earlier releases (304.37 and backwards) were fine. Two seemingly random crashes/X-freezes with complete kernel panic (and even though switching to a VC works, trying to log in results only in a panic dump).