I was asking because Dell recently updated the nDimension series BIOS which solved a similar issue. See Bug #67734 .
Can you check if there's a BIOS upgrade for your system, apply it if there's one and report back any progress here ? -- PCI USB controller causes keyboard to randomly lock up https://launchpad.net/bugs/46475 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
