I have determined that my freeze up is related to the open source modem driver I had been using. Now, I have a different modem and have no crash problems. The bad driver was unsupported. I suspect one of your kernel updates caused an api problem with it. Anyway, it's unrelated to my nvidia, which is working fine with these kernels now.
As of OP, I would be willing to close this bug. regards, -- system freezes after last kernel update https://launchpad.net/bugs/50323 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs