I updated kernel to 2.6.39.0 following instructions in link specified in Brendan Joseph's comment today on bug 772923.
So far, it is working great! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775119 Title: HP 2133 freezes with Natty -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs