Unfortunately I've found this error with Dapper and Edgy, too. If I enable Hyper-Threading in BIOS, I can't use my keyboard and mouse. (These are simple ps2 devices.) If I plug in my usb mouse, it works... But I haven't an usb keyboard. Should I buy one? :-)
On my workplace we have an (absolutely different) other machine also with two cores. The result is the same. The only solution if I disable H-T in BIOS and I don't use this technology. We use a lot of computers with common processors endowed with Dapper and Edgy without any problems. -- Keyboard non-responsive when using kernel 2.6.12 (breezy) https://launchpad.net/bugs/20062 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs